5. Energy Saving Tips in Day to Day Life

7/29/2019 5. Energy Saving Tips in Day to Day Life

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Energy Saving Tips in

Day to Day Life


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Problem!

Power Shortage

Inefficiency leads to pollution


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The Solution

Rational use of energy

Use of renewable energy sources


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Home uses of Energy

For heating For cooling

For lighting

For the operation

of electric devices

For transportation
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Biggest Electricity-Guzzlers

Air conditioners Electric Water Heaters

Incandescent lamp

Refrigerators

Washing Machines

Computers

TVs

Inverters
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Energy Savings in

Lighting & Fans

Use of Natural Lighting

Replacement of incandescent lamps with

CFL

Switch off light when not in use

Use time switch wherever possible

Use electronic choke to reduce power

consumption by 25% Replacement of indication lamps with

LEDs

In ordinary 60 Watt bulb, 70% energy is lost for heating it and

only 30% energy contributes for lighting
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Energy Savings in

Lighting & Fans

Use 36 Watt Tubelight or 28 Watt Tubelight

in place of 40 Watt Tubelight

Use light colours on the walls of the room.

Keep the light and fixtures clean.

Clean and lubricate the fans regularly.

Use electronic regulators for energy saving.

Payback period of CFL assuming its cost as Rs 110/- is 6 months

only. If 1 Crore 60 Watt bulbs are replaced by 15 Watt CFL for usage

of 4 hrs./day, the total energy saved will be 1200 MWh per annum.
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Cost of Light

AN INTEGRATED ENERGY SOLUTION PROVIDER

www.pcra.org


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Energy Balance In Lighting


www.pcra.org

Light is Electromagnetic

radiations.

Maximum Possible LightOutput is 621 lumens/Watt

at 5500 0A, (greenish

yellow).


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I llumination levels - category & applications (IS 3646)


www.pcra.org

Lux Level Illumination Example

< 50 Lux Very low Cellars, oil storage tanks, yards,

conveyors

< 100 Lux Low Stairways, parking, CHP, Compressor

rooms

< 150 Lux Moderated Foundry, pouring, leaving & reading

rooms< 200 Lux High - I m/c work, stamping, sheet metal

< 300 Lux High - II Welding, soldering, fine sanding

< 450 Lux High - III Drawing boards, fine painting

< 700 Lux Very high Sewing, inspection of small objects> 700 Lux Exceptionally high Engraving, precision grinding


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Colour Rendering Index (CRI)


www.pcra.org

Light Source CRI RenderingIncandescent lamps 97 ExcellentFL, full spectrum 7500 94 ExcellentFL, cool white deluxe 87 ExcellentCompact Fluorescent 82 ExcellentFL, Warm White deluxe 73 GoodMH (400 W clear) 65 GoodHPS (250 W deluxe) 65 GoodFl, Cool White 62 GoodFL, Warm White 52 Fair MV (phosphor-coated) 43 Poor

HPS (400 W diffuse coated) 32 PoorMV (clear) 22 Poor Low Pressure Sodium --- Impossible


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Performance Characteristics


www.pcra.org

Switching

Voltage : - life, lumen output, wattage

Effect on switching on Fluorescent lamp life

0 10 20 30

50

100

150

200%Rated Life

Frequency of Switching per 24 hours


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Get Small Get Efficient


www.pcra.org

T-12T- 8

T- 5

FTL Wattage Lumen Efficacy :Lumen / watt

T-12 40 watt 2450 61

T-8 36 watt 3250 90

T-5 28 watt 2900 104


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Energy Savings in Refrigerators

Buy energy efficient refrigerators(Energy Star rating)

Check for the gaskets so that there

is no ingress of heat from outside. Do not over load the refrigerator

Do not leave the refrigerator door

open for a long period.

Use a voltage stabiliser.

Proper servicing from time to time as

per recommendation of manufacturer
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Do not place the refrigerator in kitchen,congested area or direct sunlight.

Do not allow ice to accumulate in the

freezer as its cooling power will reduce.

Defrost regularly. Cool the food before putting in the

refrigerator.

Use Stabiliser with Refrigerators andAir Conditioners and set the voltage to220 Volts

Energy Savings in Refrigerators
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Energy Savings in

Air Conditioners

Clean the filter of Air Conditioners Have your mechanic clean the evaporator

and condenser coils regularly

Get your thermostat cleaned regularly and

replace it if not working Avoid frequent opening of doors &

windows. A door kept open can result in

doubling the power consumption of your

Air Conditioners.

Electricity cost per hour of use of 1.5Ton Air Conditioner is Rs 10/-
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Purchase only ISI marked water heaters. Put-on the water heater only 10-15 min. before

use

Set the thermostat to 50 Deg. C to save power.

Before filling-up the hot water, close the inletwater valve of water heater so that cold water

does not flow into the heater. Also, put-off the

water heater.

Change the heating element every 5-6 years.

Save about 15% - 20% of power used bywater heater by setting thermostat to 50

Deg. C

Energy Savings in

Electric Water Heaters
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Energy Savings in

Washing Machines

Use washing machines at full load as the

consumption of water will be the same

whether you put half a load of clothes or a

full load.

Put-on the washing machine only after the

water and clothes are put into it.

Put OFF the washing machine from the

main switch.
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Energy Savings in Television

Switch ON the TV only while viewing.

Switch OFF the TV from the main switch and not

through remote control.
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Consumption Levels of some

Commonly used Household AppliancesAppliances Capacity Consumption

Instant Geyser 3000 Watt 3 units / hourImmersion Rod 1000 Watt 1 unit / hour

Air Conditioner 1500 2500 Watt 8.5 14.5 units / day

Air Cooler 170 Watt 1.7 units / day

Fan 60 Watt 0.6 unit / day

Refrigerator 200 / 300 / 500 Watt 2 / 3 / 5 unit / day

Electric Kettle 1000 2000 Watt 1 - 2 units / hour

Hot plate 1000 1500 Watt 1 1.5 units / hour

Oven 1000 Watt 1 unit / hour

Toaster 800 Watt 0.8 unit / hour

Iron 750 Watt 0.65 0.75 unit / hour

Incandescent Lamp 100 / 60 / 40 Watt 0.5 / 0.3 / 0.2 unit / dayFluorescent Lamp 40 / 20 Watt 0.28 / 0.15 unit / day

Slim Tube 36 Watt 0.26 unit / day

Compact Fluorescent Lamp 7 / 9 / 11 / 13 Watt 0.06 0.09 unit / day

TV 180 Watt 0.2 unit / hour

Vacuum Cleaner 800 Watt 0.8 unit / hour

Desktop Computer 120 Watt 0.13 unit / hour


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THANK YOU

Documents

5. Energy Saving Tips in Day to Day Life