Question

In a heat pump that uses R-134a as the working fluid, the R-134a enters the compressor at 30 lbf/in.², 20 F at a rate of 0.1 lbm/s. In the compressor the R134a is compressed in an adiabatic process to 150 lbf/in.². Calculate the power input required to the compressor, assuming the process to be reversible. 

Answer 1

C.V. Compressor, Steady single inlet and exit flows. 

Adiabatic:

Explanation for the work term is in