4. A certain building wall consists of 6-in of concrete ( k = 1.2 W/m- o C), 2 in of fiberglass insulation ( k =0.026 W/m- 0 C), and 3/8 in of gypsum board ( k = 0.05 W/m- o C).The inside and outside convection coefficients are 2.0 and 7.0 BTU/hr-ft 2 - o F, respectively. The outside air temperature is 72 o F and the inside air temperature is 20 o F. Calculate, the heat loss per for 1 m 2 area of the wall.

4. A certain building wall consists of 6-in of concrete ( k = 1.2 W/m- o C), 2 in of fiberglass insulation ( k =0.026 W/m- 0 C), and 3/8 in of gypsum board ( k = 0.05 W/m- o C).The inside and outside convection coefficients are 2.0 and 7.0 BTU/hr-ft 2 - o F, respectively. The outside air temperature is 72 o F and the inside air temperature is 20 o F. Calculate, the heat loss per for 1 m 2 area of the wall.

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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