52
 Arpit Gupta Jinal Shah Department of Fashion Technology Semester VIII 21 st  May’11 Batch : 2007 - 2011 USE OF DAYLIGHT IN GARMENT INDUSTRY FOR ILLUMINATION Under the guidance of Prof. Pavan Godiawala Academic Research Graduation Project National Institute of Fashion T echnology

External Jury Ppt

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Page 1: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 152

Arpit Gupta

Jinal Shah

Department of Fashion Technology

Semester VIII

21st Mayrsquo11

Batch 2007 - 2011

USE OF DAYLIGHT IN GARMENT

INDUSTRY FOR ILLUMINATION

Under the guidance of Prof Pavan Godiawala

Academic Research Graduation Project

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 252

National Institute of Fashion Technology2

ABOUT PROJECT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 352

Studies1 Garment Industry light illumination Survey

18 units 5 industries

2 Sunlight transferring equipment

Captures solar light rays

Use of optics and mirrors to transfer

Dispersion of light

National Institute of Fashion Technology3

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 452

National Institute of Fashion Technology4

TOPICS COVERED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 552

National Institute of Fashion Technology5

Introduction

Literature Review

Sunrsquos movement with respect toearth

Secondary Research

Ray Optics

Reflective Surfaces

Experiments Conducted

Sunlight lux tracking

Artificial lights lux at varying

distances

Measuring the efficiency of lens

Industrial light illumination

and consumption survey

Industries Covered

Topics covered in

questionnaire

Methods employed for lus

value collection

Findings

Solar Lighting System

Model development

References

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 652

National Institute of Fashion Technology6

INTRODUCTION

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 752

Objectives

Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light

Maximize the use of daylight and minimize the use of artificial light

by developing an apparatus

Context

Duration 3 months

Location Gujarat

National Institute of Fashion Technology7

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 852

National Institute of Fashion Technology8

LITERATURE SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 952

Terminology

Light

Release of light photons when their electron gets excited

Lumen

Quantity of light emitted by the light source

Lux

Lux is equal to one lumen per square meter

Efficacy

The amount of light produced by a lamp measured in lumens

as a ratio of the amount of power consumed to produce itmeasured in watts

National Institute of Fashion Technology9

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1052

Terminology Continued

10

Color Rendering Index How a light source make color of an object appear to human eye

Scale 0 ndash 100

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

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24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

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Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

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44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

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45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

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Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

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49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

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References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

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Thank You

National Institute of Fashion Technology

Page 2: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 252

National Institute of Fashion Technology2

ABOUT PROJECT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 352

Studies1 Garment Industry light illumination Survey

18 units 5 industries

2 Sunlight transferring equipment

Captures solar light rays

Use of optics and mirrors to transfer

Dispersion of light

National Institute of Fashion Technology3

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 452

National Institute of Fashion Technology4

TOPICS COVERED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 552

National Institute of Fashion Technology5

Introduction

Literature Review

Sunrsquos movement with respect toearth

Secondary Research

Ray Optics

Reflective Surfaces

Experiments Conducted

Sunlight lux tracking

Artificial lights lux at varying

distances

Measuring the efficiency of lens

Industrial light illumination

and consumption survey

Industries Covered

Topics covered in

questionnaire

Methods employed for lus

value collection

Findings

Solar Lighting System

Model development

References

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 652

National Institute of Fashion Technology6

INTRODUCTION

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 752

Objectives

Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light

Maximize the use of daylight and minimize the use of artificial light

by developing an apparatus

Context

Duration 3 months

Location Gujarat

National Institute of Fashion Technology7

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 852

National Institute of Fashion Technology8

LITERATURE SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 952

Terminology

Light

Release of light photons when their electron gets excited

Lumen

Quantity of light emitted by the light source

Lux

Lux is equal to one lumen per square meter

Efficacy

The amount of light produced by a lamp measured in lumens

as a ratio of the amount of power consumed to produce itmeasured in watts

National Institute of Fashion Technology9

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1052

Terminology Continued

10

Color Rendering Index How a light source make color of an object appear to human eye

Scale 0 ndash 100

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 3: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 352

Studies1 Garment Industry light illumination Survey

18 units 5 industries

2 Sunlight transferring equipment

Captures solar light rays

Use of optics and mirrors to transfer

Dispersion of light

National Institute of Fashion Technology3

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 452

National Institute of Fashion Technology4

TOPICS COVERED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 552

National Institute of Fashion Technology5

Introduction

Literature Review

Sunrsquos movement with respect toearth

Secondary Research

Ray Optics

Reflective Surfaces

Experiments Conducted

Sunlight lux tracking

Artificial lights lux at varying

distances

Measuring the efficiency of lens

Industrial light illumination

and consumption survey

Industries Covered

Topics covered in

questionnaire

Methods employed for lus

value collection

Findings

Solar Lighting System

Model development

References

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 652

National Institute of Fashion Technology6

INTRODUCTION

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 752

Objectives

Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light

Maximize the use of daylight and minimize the use of artificial light

by developing an apparatus

Context

Duration 3 months

Location Gujarat

National Institute of Fashion Technology7

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 852

National Institute of Fashion Technology8

LITERATURE SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 952

Terminology

Light

Release of light photons when their electron gets excited

Lumen

Quantity of light emitted by the light source

Lux

Lux is equal to one lumen per square meter

Efficacy

The amount of light produced by a lamp measured in lumens

as a ratio of the amount of power consumed to produce itmeasured in watts

National Institute of Fashion Technology9

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1052

Terminology Continued

10

Color Rendering Index How a light source make color of an object appear to human eye

Scale 0 ndash 100

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 4: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 452

National Institute of Fashion Technology4

TOPICS COVERED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 552

National Institute of Fashion Technology5

Introduction

Literature Review

Sunrsquos movement with respect toearth

Secondary Research

Ray Optics

Reflective Surfaces

Experiments Conducted

Sunlight lux tracking

Artificial lights lux at varying

distances

Measuring the efficiency of lens

Industrial light illumination

and consumption survey

Industries Covered

Topics covered in

questionnaire

Methods employed for lus

value collection

Findings

Solar Lighting System

Model development

References

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 652

National Institute of Fashion Technology6

INTRODUCTION

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 752

Objectives

Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light

Maximize the use of daylight and minimize the use of artificial light

by developing an apparatus

Context

Duration 3 months

Location Gujarat

National Institute of Fashion Technology7

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 852

National Institute of Fashion Technology8

LITERATURE SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 952

Terminology

Light

Release of light photons when their electron gets excited

Lumen

Quantity of light emitted by the light source

Lux

Lux is equal to one lumen per square meter

Efficacy

The amount of light produced by a lamp measured in lumens

as a ratio of the amount of power consumed to produce itmeasured in watts

National Institute of Fashion Technology9

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1052

Terminology Continued

10

Color Rendering Index How a light source make color of an object appear to human eye

Scale 0 ndash 100

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 5: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 552

National Institute of Fashion Technology5

Introduction

Literature Review

Sunrsquos movement with respect toearth

Secondary Research

Ray Optics

Reflective Surfaces

Experiments Conducted

Sunlight lux tracking

Artificial lights lux at varying

distances

Measuring the efficiency of lens

Industrial light illumination

and consumption survey

Industries Covered

Topics covered in

questionnaire

Methods employed for lus

value collection

Findings

Solar Lighting System

Model development

References

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 652

National Institute of Fashion Technology6

INTRODUCTION

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 752

Objectives

Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light

Maximize the use of daylight and minimize the use of artificial light

by developing an apparatus

Context

Duration 3 months

Location Gujarat

National Institute of Fashion Technology7

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 852

National Institute of Fashion Technology8

LITERATURE SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 952

Terminology

Light

Release of light photons when their electron gets excited

Lumen

Quantity of light emitted by the light source

Lux

Lux is equal to one lumen per square meter

Efficacy

The amount of light produced by a lamp measured in lumens

as a ratio of the amount of power consumed to produce itmeasured in watts

National Institute of Fashion Technology9

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1052

Terminology Continued

10

Color Rendering Index How a light source make color of an object appear to human eye

Scale 0 ndash 100

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 6: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 652

National Institute of Fashion Technology6

INTRODUCTION

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 752

Objectives

Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light

Maximize the use of daylight and minimize the use of artificial light

by developing an apparatus

Context

Duration 3 months

Location Gujarat

National Institute of Fashion Technology7

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 852

National Institute of Fashion Technology8

LITERATURE SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 952

Terminology

Light

Release of light photons when their electron gets excited

Lumen

Quantity of light emitted by the light source

Lux

Lux is equal to one lumen per square meter

Efficacy

The amount of light produced by a lamp measured in lumens

as a ratio of the amount of power consumed to produce itmeasured in watts

National Institute of Fashion Technology9

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1052

Terminology Continued

10

Color Rendering Index How a light source make color of an object appear to human eye

Scale 0 ndash 100

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 7: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 752

Objectives

Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light

Maximize the use of daylight and minimize the use of artificial light

by developing an apparatus

Context

Duration 3 months

Location Gujarat

National Institute of Fashion Technology7

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 852

National Institute of Fashion Technology8

LITERATURE SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 952

Terminology

Light

Release of light photons when their electron gets excited

Lumen

Quantity of light emitted by the light source

Lux

Lux is equal to one lumen per square meter

Efficacy

The amount of light produced by a lamp measured in lumens

as a ratio of the amount of power consumed to produce itmeasured in watts

National Institute of Fashion Technology9

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1052

Terminology Continued

10

Color Rendering Index How a light source make color of an object appear to human eye

Scale 0 ndash 100

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 8: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 852

National Institute of Fashion Technology8

LITERATURE SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 952

Terminology

Light

Release of light photons when their electron gets excited

Lumen

Quantity of light emitted by the light source

Lux

Lux is equal to one lumen per square meter

Efficacy

The amount of light produced by a lamp measured in lumens

as a ratio of the amount of power consumed to produce itmeasured in watts

National Institute of Fashion Technology9

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1052

Terminology Continued

10

Color Rendering Index How a light source make color of an object appear to human eye

Scale 0 ndash 100

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 9: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 952

Terminology

Light

Release of light photons when their electron gets excited

Lumen

Quantity of light emitted by the light source

Lux

Lux is equal to one lumen per square meter

Efficacy

The amount of light produced by a lamp measured in lumens

as a ratio of the amount of power consumed to produce itmeasured in watts

National Institute of Fashion Technology9

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1052

Terminology Continued

10

Color Rendering Index How a light source make color of an object appear to human eye

Scale 0 ndash 100

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 10: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1052

Terminology Continued

10

Color Rendering Index How a light source make color of an object appear to human eye

Scale 0 ndash 100

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 11: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1152

11 National Institute of Fashion Technology

Artificial Lights Details Continued

Type of Light Lumen per

watt

Life X

1000

Hours

Relative

efficiency

based on HPS

Start Up Time

(minute)

Color

Rendering

Index

Operating Cost

Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High

Fluorescent 55-85 75 ndash 24

65 Immediate 50 - 90 Average

Compact Fluorescent

Light 45-60 10

46 Immediate 65 - 88 Low

LED 70-120 50 ndash 100

92 Immediate 70 - 90 Very Low

Mercury Vapor 50-60

16 ndash 24

46 2 ndash 7 50-60 Average

Metal Halide 80-100 15 ndash 15

77 2 ndash 5 70 -75 Below Average

High Pressure Sodium

(HPS) 75-130

20 ndash 24

100 3 ndash 4 25-35 Low

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 12: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1252

Sunrsquos movement with respect to Earth

12 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 13: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1352

Solar Tracker

13

Dual axis solar tracker

Working concept

LDR

Electronic circuit Motor

Servo (preferred)

Stepper

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 14: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1452

Ray Optics

14

Basics of Optics Laws of Reflection

Refraction

Lenses

Converging Diverging

National Institute of Fashion Technology

Concave lens Convex lens

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 15: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1552

Reflective Surfaces

15 National Institute of Fashion Technology

Material Reflectance

Foylon 95 light 85 heat

Mylar 92-97 light

C3 anti-detection film 92-97 light

Absorbs infrared radiations

Flat white paint 85 light

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 16: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1652

National Institute of Fashion Technology16

EXPERIMENTS CONDUCTED

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 17: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1752

Sunlight Lux Tracking Experiment 1

17

Context Place Vasna Ahmedabad Gujarat

Date April 17 2011 to April 23 2011

Time 0700 - 1800 hrs

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 18: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1852

Sunlight Lux Tracking

18

Minimum 25000 lx Maximum 65000 lx Average 50000 lx

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 19: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 1952

19

Purpose To know the variation in lux values with varying distance

and height

Fluorescent Tube light (36W 5600 lumens length = 48rdquo)

National Institute of Fashion Technology

Height from ground inches Height from machine

78 46

84 52

90 58

96 64

All measurements in inches

Height of workstation is 32

Artificial Lightrsquos lux at varying distances Experiment 2

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 20: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2052

Artificial Lightrsquos lux at varying distance(continued)

20 National Institute of Fashion Technology

Graphical Representation Percent lux reduction at center of the light 7892

Percent lux reduction at corner of the light 8131

Percent lux reduction at corner of the light lsquos side ( length ) 6813

Positions Distance in Inches

Average 0 12 24 36 48 60

Center from distance of 0 100 9171 7752 5987 4258 2981

decrease from previous na 9171 8453 7723 7113 7000 7892

Corner from distance of 0 100 9193 7961 6305 4979 3477

decrease from previous na 9193 8660 7919 7897 6983 8131

Lengthwise from distance of 0 100 7264 4789 3215 2063 1460

decrease from previous na 7264 6592 6713 6418 7078 6813

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 21: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2152

National Institute of Fashion Technology21

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 22: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2252

22 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 23: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2352

23 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 24: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2452

24

Lens 1 Convex 4 dioptre 65mm diameter

Lens 2 Concave 4 dioptre 65mm diameter

National Institute of Fashion Technology

Measuring the Efficiency of Lens used Experiment 3

Reading without lens 303

Final reading 267

drop in reading 0881188

Square root 094

Efficiency of each lens 094

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 25: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2552

Measuring the Efficiency of Lens used

25 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 26: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2652

National Institute of Fashion Technology26

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 27: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2752

National Institute of Fashion Technology27

INDUSTRIAL LIGHT ILLUMINATION AND

CONSUMPTION SURVEY

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 28: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2852

Industries covered

28

Arna

Artex

Banswara

Creative

Gini amp Jony

(18 units were covered)

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 29: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 2952

29

No of lights Height of the light fixtures

Power consumption of all lighting equipments

Total floor area

Tasks being undertaken

Area of work stations

No of windows

Area of windows

Lux Readings

(Data collected for each building floor) Questionnaire

National Institute of Fashion Technology

Topics covered in Questionnaire

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 30: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3052

Method employed for lux values collection

30 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 31: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3152

National Institute of Fashion Technology31

FINDINGS

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 32: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3252

Minimum Lux requirements

32

Offices Required Lux 150

Stores

For trims storage

500 lux

For checking trims

700-800 lux

Storage of fabric

200-250 lux

Cutting For panel check and re-cuting

1000-1200 lux

For spreading and cutting

700-800 lux

For fusing and ticketing

400-500 lux

Sewing For checking

900-1000 lux

For pressing Finishing Loading Normal Sewing trimming

500-600 lux

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 33: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3352

Findings Study 1 Survey

33

Average Lux department wise

National Institute of Fashion Technology

Department Wise LUX

Department Average LUX

Stores 120305

Cutting 32862

Sewing 29474

FinishingPackaging 27139

050

100

150

200

250

300

350

A v e r a g e L u x

Garment Industry Departments

Average LUX

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 34: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3452

National Institute of Fashion Technology34

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 35: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3552

35

Percentage of work area 51

National Institute of Fashion Technology

31854

2299

32777 3357

27024

050

100150200

250300350400

InspectionTable

Sewing AtNeedlePoint

Sewingbesidesneedlepoint

CenterTable

Ironing

A v e r a g e

L U X

Work Station in Sewing Floor

SEWING FLOOR Average LUX at various points

Work Center WiseAvg Lux

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 36: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3652

National Institute of Fashion Technology36

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 37: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3752

37

Percentage of light Electricity Consumption of companies

National Institute of Fashion Technology

Findings Study 1 Survey

Percentage of light Electricity Consumption of

companies

Factory units

Studied

of light electricity

consumption

Unit 1 2301

Unit 2 1145

Unit 3 1048

Unit 4 1043

Unit 5 1963

Unit 6 919

Unit 7 1263

Unit 8 1391

Average 1384

0

5

10

15

20

25

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

o

f l i g h t e l e c t r i c i t y

Companies

of light electricity

Represents buildings under oneelectricity bill

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 38: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3852

Findings

38

Average area covered by each light = 1724 sq ft Average window percent to floor area = 411

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 39: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 3952

Findings Continuedhellip

39

Analysis Excel Sheets Assumptions

Operating hours per day are eight

Limitations

Variables Work stationrsquos distance from the window and windows dimension

Day light entering from the window varies at various times of the day

Difference in actual number of tube lights in working condition

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 40: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4052

40

Observations amp Recommendations

Dirt on lights and casings Scheduled Cleaning

Reflectors amp Casing misaligned Re-align to proper

position

Focus of light on the work

Light over the sewing table gets blocked at the needle point

Lux reduced to 75

National Institute of Fashion Technology

Findings Study 1 Survey Continuedhellip

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 41: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4152

National Institute of Fashion Technology41

MODEL DEVELOPMENT

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 42: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4252

Solar Lighting System

42

Concept Various Parts and its functions

Drawings

Technical

3D figures

Theoretical efficiency

Hypothetical study (example)

Benefits amp Limitations

Future scope

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 43: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4352

Working Principle

43 National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 44: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4452

44

Drawings Technical

3 D

Working

National Institute of Fashion Technology

Solar Lighting System Working

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 45: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4552

45National Institute of Fashion Technology

Maximum Theoretical Efficiency

Surface Efficiency Type of Reflective Material

Lens 1 094 Silica Glass

Lens 2 094 Silica Glass

Reflector 1 085 Mirror

Reflector 2 085 Mirror

Reflector 3 085 Mirror

Reflector 4 095 Mirror

Reflector 5 095 Mirror

Reflector 6 095 Mirror

Reflector 7 095 Mirror

Reflector 8 095 Mirror

Efficiency42

Solar Lighting System Theoretical Efficiency

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 46: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4652

46National Institute of Fashion Technology

Solar Lighting System Costing

Sl No Name Raw Material Cost Rs

1 Base

20SWG SS SHEET 120 X

660 175

2 Servo motor Bought 850

3 Coupling SS 150

4 Bearing no 626 Bought 50

5 Vertical shaft SS ROD C20 X 360 255

6 Column SS 340

7 Bearing no 6002 Bought 75

8 Bearing housing SS 214

9 Bearing no 634 Bought 40

10 Motor shaft Teflon 150

11 Bearing housing 2 Teflon 130

12 Servo motor 2 Bought 850

13 Bearing no 608 Bought 70

14 Second lens holder Nylon 100

15 First lens holder Nylon 100

16 Reflector holder 1 Nylon 20

17 Reflector holder 2 Nylon 20

18 Reflector holder 3 Nylon 20

19 Nut bolt amp washer SS 40

20 Electronic circuit Self-made 2000

21 Other equipments Bought 350

22 LDR Bought 1800

Total 7799

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 47: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4752

Cost Benefit Analysis

47National Institute of Fashion Technology

Type of Cost Unit

Work Area 200000 sq m

Number of lights reqd for 600 lux 26093 count

Area covered by 1 setup 1750 sq m

Cost of 1 setup 500000 Rs

Total cost of 114 setup required 57142857 Rs

Tubelight + choke cost 5218605 Rs

Total setup cost + 3 failure cost 71669 Rs

Total cost 1413369 Rs

Return on Investment 3 years and 5 months

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 48: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4852

Cost Benefit Analysis

48

Minimum lumens available from sun = 25000lusqm(1800hrs)

Theoretical efficiency of model = 042

Lumens available at point of distribution = 10500lu

Area covered 1200 lux at point of work = 175m2

Average no of clear sky days in Ahmedabad= 250

Total reduction in light cost = 635

Total reduction in Electricity bill = 742

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 49: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 4952

49

Benefits Dependence on artificial light is reduced

Value of Color Rendering Index is increased

Cost of electricity bill is reduced

Recurring cost of light is reduced

The installation of the model doesnrsquot affect the existing buildingstructure

Limitations

The light cannot spread evenly

Heating up of transfer tubes is a big constraint Works during the day time only

Prototype

Depends on how big is the capturing glass amp reflecting mirror

National Institute of Fashion Technology

Solar Lighting System Benefits amp Limitations

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 50: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5052

50

The equipment can be used at other manufacturing facilities

Efficiency can be increased

National Institute of Fashion Technology

Conclusion Future Scope

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 51: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5152

References

51

Institutions National Productivity Council Gandhinagar

Gujarat Energy Development Agency Ahmedabad

Indian Institute of Technology Gandhinagar

National Institute of Design Ahmedabad

British Library

Books

Mottier Patrick LEDs for Lighting Applications Google Books

Web 28 Feb 2011

Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google

Books Web 20 Feb 2011

Online Resources

National Institute of Fashion Technology

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology

Page 52: External Jury Ppt

842019 External Jury Ppt

httpslidepdfcomreaderfullexternal-jury-ppt 5252

Thank You

National Institute of Fashion Technology