solution


Modify the cycle in Problem 8.40 to have an isentropic compressor efficiency of 80% and let the temperature of the liquid leaving the condenser be 32C. Determine, for the modified cycle,

(a) the compressor power, in kW.

(b) the refrigerating capacity, in tons.

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(c) the coefficient of performance.

Modify the cycle in Problem 8.42 to have an isentropic compressor efficiency of 85% and let the temperature of the liquid leaving the condenser be 95F. Determine, for the modified cycle,

(a) the compressor power, in horsepower.

(b) the rate of heat transfer from the working fluid passing through the condenser, in Btu/min.

(c) the coefficient of performance.

 
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