Heat and Mass Transfer: Fundamentals and Applications
5th Edition
ISBN: 9780073398181
Author: Yunus A. Cengel Dr., Afshin J. Ghajar
Publisher: McGraw-Hill Education
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Chapter 3, Problem 210P
A hot surface at 80°C in air at 20°C is to be cooled by attaching 10-cm-long and 1-cm- diameter cylindrical fins. The combined heat transfer coefficient is 30 W/m2. K, and heat transfer from time fin tip is negligible. If the tin efficiency is 0.75, the rate of heat loss from 100 fins is
(a) 325 W
(b) 707 W
(c) 566 W
(a) 424 W
(e) 754 W
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Chapter 3 Solutions
Heat and Mass Transfer: Fundamentals and Applications
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