Only one surface of the plate with a temperature of 400 oC in the direction of heat transfer is covered with an insulation material with a thickness of 55 cm and a radiation emission rate of 0.8. The insulation material is in contact with the room air with a temperature of 40 oC and a heat transfer coefficient of 20 W/m2K. If the surface temperature of the insulation material in contact with the air is 100 oC and the surface temperature of the room walls where the plate is located is 15 oC, calculate the heat flux (W/m2) lost by the plate, assuming the heat transfer is one-dimensional and making the assumptions you deem necessary.

Given: t=55cm=0.55mKL=?∈=0.8T1=400°CT2=100°CT∞=40°CTR=15°Ch=20 w/m2k

Answered: Only one surface of the plate with a…

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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Only one surface of the plate with a temperature of 400 ^oC in the direction of heat transfer is covered with an insulation material with a thickness of 55 cm and a radiation emission rate of 0.8. The insulation material is in contact with the room air with a temperature of 40 ^oC and a heat transfer coefficient of 20 W/m²K. If the surface temperature of the insulation material in contact with the air is 100 ^oC and the surface temperature of the room walls where the plate is located is 15 ^oC, calculate the heat flux (W/m²) lost by the plate, assuming the heat transfer is one-dimensional and making the assumptions you deem necessary.

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