Calculate the overall heat transfer coefficient for the following cases:

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.49P
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Calculate the overall heat transfer coefficient for the following cases:
(a) Heat is transferred across Im?of a 3-cm thick plate made of steel of k = 36.4 W/
(m-K). A liquid flows on one side with a heat transfer coefficient h, = 4000 W/
(m2K) and the other side is exposed to air with hy= 12W/(m²-K). Assume a foul-
ing heat transfer coefficient of h,- 3000 W/(m-K) on the liquid side.
(b) Same as part (a), with the air replaced by condensing steam, h, = 6000 W/(m2K).
() Same as part (a) with the liquid replaced by a flowing gas, h = 6 W/(m2K).
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Transcribed Image Text:Calculate the overall heat transfer coefficient for the following cases: (a) Heat is transferred across Im?of a 3-cm thick plate made of steel of k = 36.4 W/ (m-K). A liquid flows on one side with a heat transfer coefficient h, = 4000 W/ (m2K) and the other side is exposed to air with hy= 12W/(m²-K). Assume a foul- ing heat transfer coefficient of h,- 3000 W/(m-K) on the liquid side. (b) Same as part (a), with the air replaced by condensing steam, h, = 6000 W/(m2K). () Same as part (a) with the liquid replaced by a flowing gas, h = 6 W/(m2K). %3D %3D
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