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A certain building wall consists of 6-in of concrete ( k = 1.2 W/m-°C), 2 in of fiberglass insulation (k = 0.026 W/m-°C), and 3/8 in of gypsum board ( k = 0.05 W/m-°C).The inside and outside convection coefficients are 2.0 and 7.0 BTU/hr-ft²-"F, respectively. The outside air temperature is 72 °F and the inside air temperature is 20 °F. Calculate, the heat loss per for 1 m? area of the wall.

A certain building wall consists of 6-in of concrete ( k = 1.2 W/m-°C), 2 in of fiberglass insulation (k = 0.026 W/m-°C), and 3/8 in of gypsum board ( k = 0.05 W/m-°C).The inside and outside convection coefficients are 2.0 and 7.0 BTU/hr-ft²-"F, respectively. The outside air temperature is 72 °F and the inside air temperature is 20 °F. Calculate, the heat loss per for 1 m? area of the wall.

Elements Of Electromagnetics
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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4. A certain building wall consists of 6-in of concrete ( k = 1.2 W/m-°C), 2 in of fiberglass insulation ( k = 0.026 W/m-°C), and 3/8 in of gypsum board ( k = 0.05 W/m-°C).The inside and outside convection coefficients are 2.0 and 7.0 BTU/hr-ft²-°F, respectively. The outside air temperature is 72 °F and the inside air temperature is 20 °F. Calculate, the heat loss per for 1 m? area of the wall.
Transcribed Image Text:4. A certain building wall consists of 6-in of concrete ( k = 1.2 W/m-°C), 2 in of fiberglass insulation ( k = 0.026 W/m-°C), and 3/8 in of gypsum board ( k = 0.05 W/m-°C).The inside and outside convection coefficients are 2.0 and 7.0 BTU/hr-ft²-°F, respectively. The outside air temperature is 72 °F and the inside air temperature is 20 °F. Calculate, the heat loss per for 1 m? area of the wall.
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