Refrigerant r$134$a is used

Compressor has an isentropic efficiency of $80\mathrm{.}9\%$

The maximum compressor delivery is $1200$kpa

Refrigerant is cooled to $5\mathrm{.}4$ degrees Celsius below its saturation temperature by the time it leaves the condenser.

The refrigerant leaves the evaporator at a pressure of $240$kPa

The refrigerant leaves the evaporator at $4\mathrm{.}4$ degrees Celsius above its saturation temperature

Condenser heat exchanger has a maximum fluid frictional pressure loss of $16$kPa

The pressure drop in the evaporator is $26$kPa

Determine the specific enthalpy and entropy of the refrigerant at the entry and exit of the compressor, and the entry and exit of the expansion valve