Consider a 1.0-m-high and 1.75-m-wide glass window with a thickness of 8 mm and a thermal conductivity of 0.78 W/m-K. Determine the steady rate of heattransfer through this glass window and the temperature of its inner surface for a day during which the room is maintained at 29°C while the temperature of theoutdoors is -9°C. Take the heat transfer coefficients on the inner surface of the window to be h1 = 12 W/m2-K and outer surfaces of the window to be h, = 44W/m2-K, which includes the effects of radiation.Answer shows Qtotal and Temperature at inner surface of window.Oa.496W, 0.4°COb. 542W, 1.2°CO, 572W, 1.8°COd. 481W, 0.1°C512W, 0.6°COe.

Solution : Given data : Height (h)= 1.0 m Width (b)= 1.75 m…

Answered: Answer shows Qtotal and Temperature at…

Answer shows Qtotal and Temperature at inner surface of window. 496W, 0.4°C Ob, 542W, 1.2°C O. 572W, 1.8°C Od. 481W, 0.1°C 512W, 0.6°C

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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Question

Consider a 1.0-m-high and 1.75-m-wide glass window with a thickness of 8 mm and a thermal conductivity of 0.78 W/m-K. Determine the steady rate of heat
transfer through this glass window and the temperature of its inner surface for a day during which the room is maintained at 29°C while the temperature of the
outdoors is -9°C. Take the heat transfer coefficients on the inner surface of the window to be h1 = 12 W/m2-K and outer surfaces of the window to be h, = 44
W/m2-K, which includes the effects of radiation.
Answer shows Qtotal and Temperature at inner surface of window.
Oa.
496W, 0.4°C
Ob. 542W, 1.2°C
O, 572W, 1.8°C
Od. 481W, 0.1°C
512W, 0.6°C
Oe.

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