Refrigerant-134a enters an adiabatic compressor as saturated vapor at 30

Refrigerant-134a enters an adiabatic compressor as saturated vapor at 30

Refrigerant-134a enters an adiabatic compressor as saturated vapor at 30 psia at a rate of 20 ft3/min and exits at 70 psia pressure. If the isentropic efficiency of the compressor is 80 percent, determine (a) the actual power input and (b) the second-law efficiency of the compressor. Assume the surroundings to be at 75째F.

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