Q2/ A vapor-compression refrigeration system. The refrigerant is R134a for operating conditions, Evaporation ,TE= -12°C condensation, TC = 27°C ,n(compressor) = 0.77 and refrigeration rate = 422 kW. Determine the circulation rate of the refrigerant, the heat transfer rate in the condenser, the power requirement, the coefficient of performance of the cycle, and the coefficient of performance of a Carnot refrigeration cycle operating between the same temperature levels. %3D %3D %3D

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