Answered: Determine the steady rate of heat…

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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Consider a 0.8-m-high and 1.5-m-wide double-pane window consisting of two 4-mm-thick layers of glass (?= 0.78 W/m · °C) separated by a 10-mm-wide space filled with STAGNANT ARGON GAS (?= 0.016 W/m · °C). Determine the steady rate of heat transfer through this double-pane window and the temperature of its inner surface for a day during which the room is maintained at 20°C while the temperature of the outdoors is 10°C. Take the convection heat transfer coefficients on the inner and outer surfaces of the window to be ℎ1= 10 W/m2 · °C and ℎ2= 40 W/m2 · °C, which includes the effects of radiation.

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