In many refrigeration systems, the working fluid is pressurized in order to raise its temperature. Consider a device in which saturated vapor refrigerant R-134a is compressed from 140 kPa to 1200 kPa. The compressor has an isentropic efficiency of 82 %. What is the temperature of the refrigerant leaving the compressor? °C How much power is needed to operate this compressor? kJ/kg What is the minimum power to operate an adiabatic compressor under these conditions? kJ/kg

In many refrigeration systems, the working fluid is pressurized in order to raise its temperature. Consider a device in which saturated vapor refrigerant R-134a is compressed from 140 kPa to 1200 kPa. The compressor has an isentropic efficiency of 82 %. What is the temperature of the refrigerant leaving the compressor? °C How much power is needed to operate this compressor? kJ/kg What is the minimum power to operate an adiabatic compressor under these conditions? kJ/kg