Engineering Fundamentals: An Introduction to Engineering
Engineering Fundamentals: An Introduction to Engineering
6th Edition
ISBN: 9780357112311
Author: Saeed Moaveni
Publisher: Cengage Learning US
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Chapter 11, Problem 29P
To determine

Calculate the heat loss through the side walls of a refrigerator.

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Air at 25 ° C blows over the hot steel plate whose surface temperature is maintained at 150 ° C. The plates are 50 cm x 40 cm in dimensions and 2.5 cm thick. The convection heat transfer coefficient on the upper surface is 20 W / (m² ° C). The thermal conductivity of steel is 45 W / (m ° C). Calculate the hourly heat loss from the plate surface. a. heat loss per hour = kJ. Answer b. If the reverse side surface temperature is maintained, determine the hourly heat loss incurred = kJ.Answer
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Engineering Fundamentals: An Introduction to Engineering

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