standard vapor compression cycle using R134a as the working fluid has a condensing temperature of 40°C and an evaporating temperature of -5°C. The heat extraction rate is 25 kW. The process 1-2-3-4 describes the cycle with T-s and P-h diagrams shown below. A. Calculate the refrigerant flow rate in kg/s. B. Calculate the compressor work input in kW. C. Calculate the volume flow rate of refrigerant at the compressor inlet in m^3/s.

standard vapor compression cycle using R134a as the working fluid has a condensing temperature of 40°C and an evaporating temperature of -5°C. The heat extraction rate is 25 kW. The process 1-2-3-4 describes the cycle with T-s and P-h diagrams shown below. A. Calculate the refrigerant flow rate in kg/s. B. Calculate the compressor work input in kW. C. Calculate the volume flow rate of refrigerant at the compressor inlet in m^3/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

Chapter28: Special Refrigeration Applications

Section: Chapter Questions

Problem 15RQ: Why is two-stage compression popular for extra-low-temperature refrigeration systems?

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