Answered: Determine in W the radiation heat loss…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Determine in W the radiation heat loss from each meter of 20 cm diameter heating pipe when it is placed centrally in the brick duct of square section 30 cm side.

Temperature of pipe surface = 200°C

Brick duct temperature = 20°C

Emissivity of the pipe surface = 0.8

Brick duct emissivity = 0.9

Assume only radiation heat transfer between pipe and brick duct.

If the system is in steady-state condition then find the surface heat transfer coefficient of the brick duct assuming the temperature of the surroundings of the duct is 10°C.

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