R-134a flows through a refrigeration system at a rate of .12 kg/s. At the entrance to the adiabatic compressor, the r-134a is at 160 kPa and -10oC and it exists at 700 kPa and 50oC. The system releases heat to the environment at a rate of 12.5 kW.
Find:
the power required from the compressor Wc?
the isothermal efficiency of the compressor Nc?