An air refrigeration system operating on a closed cycle is required to produce 100 kW of refrigeration with a cooler pressure of 1550 kPa and a refrigerator pressure of 448 kPa. Leaving-air temperatures are 25OC for the cooler and 5OC for the refrigerator. Assuming a theoretical cycle with isentropic compression and expansion, no clearance and no losses, determine (a) the mass flow rate, (b) the compressor displacement, (c) the expander displacement, (d) the heat rejected in

Question

An air refrigeration system operating on a closed cycle is required to produce
100 kW of refrigeration with a cooler pressure of 1550 kPa and a refrigerator
pressure of 448 kPa. Leaving-air temperatures are 25OC for the cooler and
5OC for the refrigerator. Assuming a theoretical cycle with isentropic
compression and expansion, no clearance and no losses, determine (a) the
mass flow rate, (b) the compressor displacement, (c) the expander
displacement, (d) the heat rejected in the air cooler and (e) the COP.