A horizontal steel pipe having a diameter of 5 cm is maintained at a temperature of 50•C in a large room where the air and wall temperature are at 20-C. The surface emissivity of the steel may be taken as ɛ:=0.8. Use h = 6.5 W/m2 - "C for this situation, calculate the total heat lost by the pipe per unit length. (Hint energy loss qtotal=qconv+qrad)

A horizontal steel pipe having a diameter of 5 cm is maintained at a temperature of 50•C in a large room where the air and wall temperature are at 20-C. The surface emissivity of the steel may be taken as ɛ:=0.8. Use h = 6.5 W/m2 - "C for this situation, calculate the total heat lost by the pipe per unit length. (Hint energy loss qtotal=qconv+qrad)

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 2.64P

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