Answer to Question #110485 in Thermal Power Engineering for Kashish Sharma

Question #110485
Refrigerant-134a enters the condenser of a heat pump at 180 psia and 140 ºF at a rate of 8.3 lbm/min and leaves as a saturated liquid. If the compressor consumes 103.25 Btu/min of power, determine the coefficient of performance of the heat pump unit.
1
Expert's answer
2020-04-28T12:26:25-0400

Given:-

Find coefficient of performance (C.O.P)

Now,

Now,

The heat rejected in the condenser is expressed as,


So,

coefficient of performance (C.O.P)

Therefore, COP of heat pump = 5.85


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