AC/ pump analysis System 2 tons operating steadily to maintain 60 F inside. Temperature outside: 30 F Assume 10 degree temp difference between the refrigerant R-134a and the two thermal reservoirs with which the refrigerant exchanges heat. COP = 9.0 Determine: compressor efficiency (%), condenser pressure (psia), evaporator pressure (psia), mass flow rate of R-134a (lb/sec)

AC/ pump analysis System 2 tons operating steadily to maintain 60 F inside. Temperature outside: 30 F Assume 10 degree temp difference between the refrigerant R-134a and the two thermal reservoirs with which the refrigerant exchanges heat. COP = 9.0 Determine: compressor efficiency (%), condenser pressure (psia), evaporator pressure (psia), mass flow rate of R-134a (lb/sec)

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter48: Cooling Towers And Pumps

Section: Chapter Questions

Problem 13RQ

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