50P) Two-evaporator compression refrigeration system uses refrigerant-134a as the working fluid. The syste erates evaporator 1 at 320 kPa, evaporator 2 at 100 kPa, and the condenser at 900 kPa. and the high- nperature evaporator cooling load is 5 kW and the low-temperature evaporator cooling load is 8 kW. The mpressor is isentropic. Determine: The refrigerant rates: m1, m2 and m circulated through the compressor, The power required by the compressor, and The COP of the system. Candenser ne refrigerant is saturated liquid at the exit of the condenser nd saturated vapor at the ext of each evaporator. Evaporator t state TC P (kPa) h ki/kg s (kJ/kg C) Pressare reducing valve 25 Evaporaor 2 2 3 4 FIGURE P11-60