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 90°F. The rate of heat transfer into the dwelling through the...

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 90°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 hp.

Determine

a. the coefficient of performance for the air conditioner

b. power input required in hp

c.  coefficient of performance for a reversible air conditioner providing the same cooling effect while operating between the same cold and hot temperatures.

Extracted text: Outside 30,000 Btu/h Inside, 70° F Refrigorant loop Evaporator Condenser Compressor