7. A polished metal pipe 5 cm outside diameter and 370 K temperature at the outer surface is exposed to ambient conditions at 295 K temperature. The emissivity of the surface is 0.2 and the convection coefficient of heat transfer is 11.35 W/m K Calculate the heat transfer by radiation and natural convection per meter length of the pipe. Take thermal radiation constant = 5. 67 x 10 °w/m´K*. What would be the overall coefficient of heat transfer by the combined mode of convection and radiation?
7. A polished metal pipe 5 cm outside diameter and 370 K temperature at the outer surface is exposed to ambient conditions at 295 K temperature. The emissivity of the surface is 0.2 and the convection coefficient of heat transfer is 11.35 W/m K Calculate the heat transfer by radiation and natural convection per meter length of the pipe. Take thermal radiation constant = 5. 67 x 10 °w/m´K*. What would be the overall coefficient of heat transfer by the combined mode of convection and radiation?
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.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.51P: 1.51 The inner wall of a rocket motor combustion chamber receives by radiation from a gas at . The...
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