_5. A load of 10 tons is to be carried by an air refrigeration cycle with suction pressure of 15 psia and discharge pressure of 90 psia . The compression process has a polytropic exponent of 1.3 whereas the expansion process exponent is 1.37 . Pressure at the start of expansion is 83 psia and temperature is 80 deg F . Air temperature after useful heat addition is 34 deg F and the air undergoes at 15 deg F temperature rise in the piping during return to compression suction . Clearance is zero .Calculate the piston displacement in cubic feet per min. A) 976 B) 769 C) 679 D) 509

_5. A load of 10 tons is to be carried by an air refrigeration cycle with suction pressure of 15 psia and discharge pressure of 90 psia . The compression process has a polytropic exponent of 1.3 whereas the expansion process exponent is 1.37 . Pressure at the start of expansion is 83 psia and temperature is 80 deg F . Air temperature after useful heat addition is 34 deg F and the air undergoes at 15 deg F temperature rise in the piping during return to compression suction . Clearance is zero .Calculate the piston displacement in cubic feet per min. A) 976 B) 769 C) 679 D) 509

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

Chapter3: Refrigeration And Refrigerants

Section: Chapter Questions

Problem 2RQ: What are the approximate temperature ranges tor low-, medium-, and high-temperature refrigeration...

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