1. A refrigerated room is kept at -18C by a vapor- compression cycle with refrigerant. Heat is rejected to cooling water that enters the condenser at 14C at a rate of 0.35 Water 14 C 22 C R-134a as the 1.2 MPa QH 1.2 MPa 50 C 5 C subcool kg/s and leaves at 22C. The refrigerant enters the condenser at 1.2MPA and 50C and leaves Condenser at the same pressure subcooled by 5C. If the compressor consumes determine 5.5 kW of power, Expansion valve Win Compressor (a) the mass flow rate of the refrigerant, (b) the refrigeration load and the COP, (c) the second-law efficiency of the refrigerator and the total exergy destruction in the cycle, and (d) the exergy destruction in the condenser. Take specific heat of water to be 4.18 kJ/kg-C. Evaporator QL