Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at 20C with a mass flow rate of 1.2 kg/s. Refrigerant exits at 7 bar, 70C. Changes in kinetic and potential energy from inlet to exit can be ignored.

Determine (a) the volumetric flow rates at the inlet and exit, each in m3/s.

(b) the power input to the compressor, in kW