As shown in the figure, an air conditioner operating at steady state maintains a dwelling at 70°F on a day when the outside temperature is 93°F. The rate of heat transfer into the dwelling through the walls and roof is 30,000 Btu/h and the net power input to the air conditioner compressor is 3.1 hp. Inside, 70° F Evaporator ← 30,000 Btu/h Refrigerant loop W₁ Compressor Outside Condensor Que Determine the coefficient of performance of the air conditioner. Determine the power input required, in hp, and the coefficient of performance for a reversible air conditioner providing the same cooling effect while operating between the same cold and hot temperatures.
As shown in the figure, an air conditioner operating at steady state maintains a dwelling at 70°F on a day when the outside temperature is 93°F. The rate of heat transfer into the dwelling through the walls and roof is 30,000 Btu/h and the net power input to the air conditioner compressor is 3.1 hp. Inside, 70° F Evaporator ← 30,000 Btu/h Refrigerant loop W₁ Compressor Outside Condensor Que Determine the coefficient of performance of the air conditioner. Determine the power input required, in hp, and the coefficient of performance for a reversible air conditioner providing the same cooling effect while operating between the same cold and hot temperatures.
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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Transcribed Image Text:As shown in the figure, an air conditioner operating at steady state maintains a dwelling at 70°F on a day when the outside
temperature is 93°F. The rate of heat transfer into the dwelling through the walls and roof is 30,000 Btu/h and the net power input to
the air conditioner compressor is 3.1 hp.
Qin
Inside, 70° F
Evaporator
← 30,000 Btu/h
Refrigerant loop
W₁
Compressor
Outside
Condenser
ma
Determine the coefficient of performance of the air conditioner. Determine the power input required, in hp, and the coefficient of
performance for a reversible air conditioner providing the same cooling effect while operating between the same cold and hot
temperatures.
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