Q.4.A. A 3 cm-diameter aluminum cylinder is maintained at a temperature of 62 C in a large room where the air and wall temperature are at 18 C. The surface emissivity of the aluminum may be taken as 0.77 and the heat-transfer coefficient equal 7.4 W/m2.C, calculate the total heat lost by the pipe per unit length. Stefan - Boltzmann constant = 5.669 x 10-8 %3D

Q.4.A. A 3 cm-diameter aluminum cylinder is maintained at a temperature of 62 C in a large room where the air and wall temperature are at 18 C. The surface emissivity of the aluminum may be taken as 0.77 and the heat-transfer coefficient equal 7.4 W/m2.C, calculate the total heat lost by the pipe per unit length. Stefan - Boltzmann constant = 5.669 x 10-8 %3D

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.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.36P

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Question

Q.4.A. A 3 cm-diameter aluminum cylinder is maintained at a temperature
of 62 C in a large room where the air and wall temperature are at 18 C.
The surface emissivity of the aluminum may be taken as 0.77 and the
heat-transfer coefficient equal 7.4 W/m2.C, calculate the total heat lost by
the pipe per unit length. Stefan - Boltzmann constant 5.669 x 10-8

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