Consider a 0.8-m-high and 1.5-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 -12°C. Take the heat transfer coefficients on the inner surface of the window to be h1 = 15 W/m2-K and outer surfaces of the window to be h, = 40 W/m2-K, which includes the effects of radiation. Answer shows Qtotal and Temperature at inner surface of window. 412W, 0.1°C a. 483W, 2.2°C b. 424W, 0.5°C 436W, 0.8°C d. 459W, 1.5°C е.

Consider a 0.8-m-high and 1.5-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 -12°C. Take the heat transfer coefficients on the inner surface of the window to be h1 = 15 W/m2-K and outer surfaces of the window to be h, = 40 W/m2-K, which includes the effects of radiation. Answer shows Qtotal and Temperature at inner surface of window. 412W, 0.1°C a. 483W, 2.2°C b. 424W, 0.5°C 436W, 0.8°C d. 459W, 1.5°C е.

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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