Refrigerant-134a is the working fluid in an ideal vapor-compression refrigeration cycle that operates between 0.15 MPa and 0.8 MPa. Saturated vapor enters the compressor at T1 and saturated liquid leaves the condenser at T3. The mass flow rate of the refrigerant is mr = 0.05 kg/s. Determine: (a) the compressor power, in kW, (b) the refrigeration capacity, in kW, (c) the coefficient of performance, and (d) the coefficient performance of a Carnot refrigeration cycle operating between T1 and ТЗ.

Refrigerant-134a is the working fluid in an ideal vapor-compression refrigeration cycle that operates between 0.15 MPa and 0.8 MPa. Saturated vapor enters the compressor at T1 and saturated liquid leaves the condenser at T3. The mass flow rate of the refrigerant is mr = 0.05 kg/s. Determine: (a) the compressor power, in kW, (b) the refrigeration capacity, in kW, (c) the coefficient of performance, and (d) the coefficient performance of a Carnot refrigeration cycle operating between T1 and ТЗ.

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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