Question

A refrigerator with refrigerant-134a a the working fluid i ued to keep the refrigerated pace at -30 oC by rejecting it wate heat to cooling water that enter the condener at 18 oC at a rate of 0. 25 kg/ and leave at 26oC. The refrigerant enter the condener at 1. 2 MPa and 65oC and leave at 42oC. The inlet tate of the compreor i 60 kPa and -34oC and the compreor i etimated to gain a net heat of 450 W from the urrounding. Determinea) the quality of the refrigerant at the evaporator inlet

b) the refrigeration load,
c) the COP of the refrigerator, and
d) The theoretical maximum refrigeration load for the ame power input to the
compreor

Answer 1

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