Vapor Compression Cycles Example 44.1: Consider a 300 kJ/min refrigeration system that operates on an vapor-compression cycle with R134a as the working fluid.The refrigerant enters the compressor as superheated vapor at 140 kPa and is compressed to 800 kPa.If the isentropic efficiency of the compressor is 0.85,and the superheat and subcooling are 5 oC,determine:a)the quality of the refrigerant at the end of the throttling process,b)the coefficient of performance,c)the power input to the compressor (kW). 上游充通大学 May9,2019 20 SHANGHAI JIAO TONG UNIVERSITYMay 9, 2019 20 Vapor Compression Cycles Example 44.1: • Consider a 300 kJ/min refrigeration system that operates on an vapor-compression cycle with R134a as the working fluid. The refrigerant enters the compressor as superheated vapor at 140 kPa and is compressed to 800 kPa. If the isentropic efficiency of the compressor is 0.85, and the superheat and subcooling are 5 oC, determine: a) the quality of the refrigerant at the end of the throttling process, b) the coefficient of performance, c) the power input to the compressor (kW)