“HEAR IT AND FORGET IT, SEE IT AND REMEMBER IT, DO IT AND UNDERSTAND IT”

R12310: ME and ChemE Lab and Demo Hardware Development

DPM – Spring 2012

Presentation Outline

Functional DecompositionBenchmark ChartMetrics and SpecificationsHouse of QualityPRPs

Overview Objectives/Deliverables

Staffing ListFeedback from Customer MeetingQuestions

Functional Decomposition ME Demo

Constraints: Simple and easy to use, easily stored, assemble and disassemble quickly, minimal maintenance, meet budget, prevent injury

Functional Decomposition ChemE Lab Hardware

BenchmarkingSource TecQuiptment

Topic Heat Transfer

Size 650mm x 480mm

Measurement Capabilities

Linear, radial, surface heat transfer. Transfer through

liquids or gasses.

EquipmentTecQuiptment (TD1002) Heat

Transfer Device

Description

This device can be used to demostrate linear and radial heat conduction. It is also capable of demonstrating

surface heat transfer (conduction, convection and

radiation). Also, demonstrates heat conduction through liquids

and gasses. Calculation of thermal conductivity (k value).

Additonal Comments

Sound level less than 70 dB, 220 to 240V electic supply. Operating relative humidity

range: 80% at temperatures < 31°C decreasing linearly to

50% at 40°C

Benchmarking

Source Florida State University

Topic Extended Surfaces

Measurement Capabilities

Temperature profiles

Equipment

Cylindrical extended surface, thermocouples, constant temperature

bath, digital temperature indicator, switchbox, wind tunnel

Time lengthLab period about 2.5

hours

Description

The steady state temperature profile is recorded for varying

convective coefficients (i.e. the wind tunnel speed is increased)

Metrics and Specifications – ME Demo Hardware

*** Continued on next slide

Source Specification (metric) Unit of MeasureMarginal

ValueIdeal Value

Comments/Further Detail

S1 CN11 Demo viewing radius Meters >=7 >=11S2 CN11 Demo viewing angle Degrees 180 360S3 CN8 Auditory, visual, and written aspects Y/N YS4 CN1, CN5 Demo time length away from lecture time Minutes <=30 <=15

S5CN1, CN5, CN12,

CN16Demo running time length Minutes <=50

Length (m) <=1Height (m) <=1.25Width (m) <=0.75

S7 CN3, CN4, CN12Force required to start and continue

motion on a standard ME cartNewtons <=130 <=65

S8 CN3, CN4, CN19 Weight Newtons/Person <=170 <=130

S9 CN1, CN8, CN17 Student familiarity Percentage >=70Survey percentage of student familiar with

idea of device (min sample size of 20 students)S10 CN1, CN8 *Increase in historical average grade Percentage >=1 >=2

S11 CN1, CN17*Students recognize how demo applies

to "real life" applicationsPercentage >=50 >=70

Done via survey (min sample size of 20 students)

Length (m) >=0.5Height (m) >=0.75Width (m) >=0.5

S13 CN2, CN5,CN12 Time to disassemble/assemble Minutes <=10 <=5

S14 CN5, CN12 Time to read and understand Minutes <=30 <=20

S6

S12

Size envelope when assembledDemo size specification based on size needed

to fit through door adequately and fit on standard ME cart.

Size envelope when disassembled

CN11, CN16, CN19

CN12, CN19

Metrics and Specifications – ME Demo Hardware

S15 CN4 *Injuries per year # <=1 0

This will be done through reports. MSD team will not be able to measure this,

but device should be designed with safety in mind.

S16 CN1, CN13 Accurate results Percentage <=30 <=20Percentage deviation from analytical

values using a minimum sample size of

S17CN1,CN6, CN7,

CN9, CN10,CN14, CN15,CN18, CN20

Core academic topics satisfied Y/N Y

S18 CN2 *Maintenance required #/year <=2 <=1

S19 CN16Demos can be performed in classroom

w/o additional resourcesY/N Y

S20 CN1, CN13, CN15 Reproducible results Percentage <=15 <=10Results must fall within this range of

one another when 10 runs are S21 CN13 Accurate measurements Percentage <=20 <=5

*Disclaimer: MSD team will not be able to measure this, however, this objective should be kept in mind when designing the demo.

Metrics and Specifications – ChemE Lab Hardware

Metrics and Specifications – ChemE Lab Hardware

Metrics and Specifications – ChemE Lab Hardware

House of Quality – ME Demo Hardware

Needs & Metrics

S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21

CN1 1 1 9 9 3 3 3 3CN2 3 9CN3 9 9CN4 3 3 9CN5 9 3 9 3CN6 9CN7 9CN8 9 1 9CN9 9

CN10 9CN11 9 9 9CN12 9 1 3 1 9 9CN13 9 3 3CN14 9CN15 3 3CN16 3 3 9CN17 9 9CN18 9CN19 9 9CN20 9

House of Quality – ChemE Lab Hardware

PRP #1: Extended Surfaces

Objectives Reinforce the basics of conduction and convection Increase student understanding of extended surfaces Demonstrate surface area’s impact on heat transfer Comparison of at least two different fin geometries or

tip conditionsDemo Hardware Capabilities

Measures ambient air temperature and temperature distribution along object

There will be a constant heat flux acting on the base of the fin, or the base will be held at a constant temperature

May be assisted with a DAQ software

PRP #2: Transient Heat Transfer

Objectives Enhance student comprehension of transient heat

transfer Demonstrate lumped capacitance, 1st term

approximation, and semi-infinite models Show temperature change over time

Demo Hardware Capabilities Measures temperature at different points of a

specimen, and measure the temperature of the surroundings

May be assisted with a DAQ software Areas allowing for creativity: specimen shape and

material, cooling or heating process

PRP #3: Free vs Forced Convection

Objectives Enhance student comprehension pertaining to

convection Demonstrate free and forced convection isolated from

one another Calculate convective coefficient, “h”

Demo Hardware Capabilities Measures ambient air temperature, temperature of

object, and fluid flow rate (for forced convection) May be assisted with a DAQ software Possible creativity with convective coefficient by

location and object geometry

PRP #4: Isentropic Efficiency

Objectives Demonstrate “real” system and compare to ideal

(isentropic) systemDemo Hardware

Shows concept of isentropic efficiency Uses a system that loses a measurable amount of energy Provides information needed for table look up and

calculations Temperature, Pressure, velocity

in out

PRP #5: Entropy

Objectives Demonstrate entropy through fluid diffusion

Demo Hardware Shows concept of entropy as related to fluid diffusion Shown for two scenarios

PRP #6: Chem E Lab Equipment

Objectives Demonstrate transient and steady state heat conduction Provide the means to measure thermal conductivity

Project Suggestions/Capabilities Equipment creates a one-dimensional thermal circuit

Equipment creates and maintains steady state conditions Equipment outputs temperature distribution and heat flux at

S.S.

Depending on staffing and budget, the equipment plots the temperature distribution as transient conduction approaches S.S. (DAQ software)

qR

T1 T2

q = ∆T/R

q ,∆T R R = f(geometry,k) k

PRP #7: Chem E Lab Integration

Objectives Fully integrate the apparatus developed by the Chem

E Lab Equipment team into Chemical Principles Lab I.3 segments of lab integration

Facilities Preparation Adequate power sources/workstations Water lines

Data Acquisition Sufficient computers with DAQ software

Equipment Integration Assembly timeframe/instruction Ergonomic review

Staffing

Mechanical Engineers (2-4 per project) Background in demo topic preferred

Thermodynamics Heat transfer

Designing (CAD, Stress analysis (ANSYS), etc) Manufacturing/Assembly Labview/DAQ Experience (Demo dependent) Thermo and Structural Analysis

Industrial Engineer (1) Ergonomics Safety Statistical Analysis Project Management Instruction manual design (Process design)

Customer Feedback – ME Demo Hardware

Dr. Stevens Combine heat transfer demos into one project Create shared DAQ software and equipment Models should be at steady state Add specification for accuracy of measurements

Prof. Landschoot Entropy idea evaluation – interested in pursuing

further Feasibility evaluation – plausible

Customer Feedback – ChemE Lab Hardware

Professor Gregorius and Dr. Koppula Specifications are well written, but narrow the scope of

the project too much – heat transfer could be radial and 1D

Temperature specifications were changed to percent deviation at steady state (EM1, EM2)

Diameter and length specifications were combined, does the equipment adapt for different sizes? – binary (EM6)

Ideal and marginal values were given for time to reach S.S. (EM4)

Given the materials that will be used as specimens, better defined the range of acceptable k values (EM8)

Questions?