A steel tube, with a thermal conductivity of 50 W /m K, has an inner diameter of 20-mm and outer diameter of 26-mm. Hot gases flow over the tube with a convection heat transfer coefficient of 200 W/m2 K; while, cold water flows through the tube with a convection heat transfer coefficient of 8000 W/m2 K. What is the cold-side overall heat transfer coefficient in W/m2 K?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
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Author:Kreith, Frank; Manglik, Raj M.
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Chapter2: Steady Heat Conduction
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A steel tube, with a thermal conductivity of 50 W /m K, has an inner diameter of 20-mm and outer
diameter of 26-mm. Hot gases flow over the tube with a convection heat transfer coefficient of
200 W/m2 K; while, cold water flows through the tube with a convection heat transfer coefficient of
8000 W/m2 K. What is the cold-side overall heat transfer coefficient in W/m2 K?
Transcribed Image Text:A steel tube, with a thermal conductivity of 50 W /m K, has an inner diameter of 20-mm and outer diameter of 26-mm. Hot gases flow over the tube with a convection heat transfer coefficient of 200 W/m2 K; while, cold water flows through the tube with a convection heat transfer coefficient of 8000 W/m2 K. What is the cold-side overall heat transfer coefficient in W/m2 K?
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