Refrigerant 134a enters the compressor of an ideal vapor-compression refrigeration cycle as saturated vapor at 10F. The condenser pressure is 160 lbf/in.2 The mass flow rate of refrigerant is 6 lb/min. Plot the coefficient of performance and the refrigerating capacity, in tons, versus the condenser exit temperature ranging from the saturation temperature at 160 lbf/in.2 to 90F.
To determine the effect of changing the evaporator temperature on the performance of an ideal vapor-compression refrigeration cycle, plot the coefficient of performance and the refrigerating capacity, in tons, for the cycle in Problem 8.44 for saturated vapor entering the compressor at temperatures ranging from 40 to 10C. All other conditions are the same as in Problem 8.44.
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