A reversed Brayton cycle with an isentropic pressure ratio of 1.75 is to be used to refrigerate a food locker. The refrigerant is air. The compressor and expander inlet temperatures are 0.00°C and 14.0°C, respectively. Determine
a. The ASC coefficient of performance of this system.
b. The Carnot coefficient of performance for a refrigerator operating between the same temperature limits.
c. The compressor and expander outlet temperatures.