Question 2: There is a refrigeration system with R134a.The compressor operates accepting fluid at 250 kPa and -3°C, leaving it at 1400 kPa. In the condenser the fluid reaches 40°C and 1200 kPa. The heat removed from the space is 10.13 kJ/s and the compressor has an isentropic efficiency of 60.1%. Decide: a) the mass of refrigerant kg/s. b) performance coefficient. c) enthalpy at the compressor outlet kJ/kg d) net work kJ/s.

Question 2: There is a refrigeration system with R134a.The compressor operates accepting fluid at 250 kPa and -3°C, leaving it at 1400 kPa. In the condenser the fluid reaches 40°C and 1200 kPa. The heat removed from the space is 10.13 kJ/s and the compressor has an isentropic efficiency of 60.1%. Decide: a) the mass of refrigerant kg/s. b) performance coefficient. c) enthalpy at the compressor outlet kJ/kg d) net work kJ/s.

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

Chapter41: Troubleshooting

Section: Chapter Questions

Problem 8RQ: When the outside ambient air temperature is 90F, the temperature of the condensing refrigerant in a...

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