Introduction to Heat Transfer
6th Edition
ISBN: 9780470501962
Author: Frank P. Incropera, David P. DeWitt, Theodore L. Bergman, Adrienne S. Lavine
Publisher: Wiley, John & Sons, Incorporated
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Question
Chapter 3, Problem 3.33P
(a)
To determine
The maximum power dissipation.
(b)
To determine
The effect of increasing heat coefficient over the given range.
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The cylindrical pipe with a thread diameter of 0.070 m and an internal diameter of 0.050 m is insulated both internally and externally. Calculate the heat loss per unit length of the pipe (1 m) when the inner surface temperature of the pipe is kept at 50 °C and the outer surface temperature at 20 °C (Average thermal conductivity constant = Km= 0.172 J/cm.s.K).
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a)167 W, yes
b)187 W, yes
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d)120 W, no
e)none
Chapter 3 Solutions
Introduction to Heat Transfer
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