Arefrigerator uses refrigerant 134a as a working fluid and operates on the vapour -compression refrigiration cycle. the evaporator is maintained at -100c and the refrigirant is a dry saturated vapour as it leaves the evaporator. the compressor has an efficiency of 80%.the conditions at the outlet of the condensor are 300c and 9 bar.
1-if the mass flow rate of the refrigerant is 0,08kg/s workout the rate of heat removal from the refrigerant space. the power input to the cpmpressor and the cop of the refrigerator. sketch all state points and the cycle on the p-h diagram for the refrigerant
2state four desurable properties of a refrigerant