(Solved): A non-ideal vapor-compression refrigeration cycle using HFC-134a as the working fluid operates at an ...

A non-ideal vapor-compression refrigeration cycle using HFC-134a as the working fluid operates at an evaporator temperature of -15 °C and a condenser pressure of 1 MPa. Saturated vapor enters the compressor and saturated liquid exits the condenser. If the isentropic efficiency of the compressor is 0.90, and the refrigerant flow rate is 1 kg/min, find a) The coefficient of performance of the cycle b) The power input to the compressor (in kW)