1) A simple vapour compression system using R12 as a refrigerant. The refrigerant enters the compressor as dry saturated vapour at -20°C, and it is compressed isentropically to the condenser pressure corresponding to its temperature 35°C. Show the cycle on the p-h diagram and find: (a) the temperature and enthalpy at the end of compression. (b) the work of compression per unit mass flow rate of refrigerant.

1) A simple vapour compression system using R12 as a refrigerant. The refrigerant enters the compressor as dry saturated vapour at -20°C, and it is compressed isentropically to the condenser pressure corresponding to its temperature 35°C. Show the cycle on the p-h diagram and find: (a) the temperature and enthalpy at the end of compression. (b) the work of compression per unit mass flow rate of refrigerant.

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

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 13RQ: Condensers in these refrigerators are all_______cooled.

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