Conduction lab

Conduction lab - Conduction/Convection/Radiation Heat...

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Conduction/Convection/Radiation Heat Transfer Lab BRAE 232 Dominic Sween Table of Contents
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Objectives and Procedures………………………………………………………………………………… …3 Equipment………………………………………………………………………………… ………………………. ..4 Results……………………………………………………………………………………… ………………………. ..5 Discussion of Results……………………………………………………………………………………… ……6 Conclusions………………………………………………………………………………… ……………………….8 Appendix…………………………………………………………………………………… ………………………. .9 Original Data Sheet……………………………………………………………………………………9 Calculations………………………………………………………………………………… ………….10 Lab Paper……………………………………………………………………………………… ………. .14 Score Sheet. ……………………………………………………………………………………………15 2
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Objective The purpose of this experiment is to become familiarized with basic models of heat transfer with special emphasis on convection and radiation. A black-painted steel plate will be compared to a galvanized steel plate in regard to absorptivity, reflectivity, and emissivity. Thermistors will be used to determine surface temperatures of the metal plate under different environmental conditions. Both natural and forced convection will be investigated. An Eppley radiometer and voltmeter will be used to measure the intensity of radiation heat output from an infra-red heat lamp. Heat transfer rates will be analytically determined and compared with experimental results. Procedure 1. Complete set up of apparatus including metal plates, heat lamp, and 120-volt axial flow fan. 2. Switch on the infrared heat lamp and measure intensity of radiation at level of plates using a radiometer connected to a voltage meter. 3. Make run #1 with both fan and lamp off to determine start conditions for experiment.
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This note was uploaded on 11/13/2011 for the course BRAE 232 taught by Professor Billcavaletto during the Spring '11 term at Cal Poly.

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Conduction lab - Conduction/Convection/Radiation Heat...

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