Refrigerant-134a enters the compressor of a refrigerator at 140kPa and - 10 degrees celsius at a rate of 0.3 m^3/min and leaves at 1 MPa. The isentropic efficiency of the compressor is 78%. The refrigerant enters the throttling valve at 0.95 MPa and 30 degrees celsius and leaves the evaporator as saturated vapour at -18.5 degrees celsius. DETERMINE the coefficient of performance..
Refrigerant-134a enters the compressor of a refrigerator at 140kPa and - 10 degrees celsius at a rate of 0.3 m^3/min and leaves at 1 MPa. The isentropic efficiency of the compressor is 78%. The refrigerant enters the throttling valve at 0.95 MPa and 30 degrees celsius and leaves the evaporator as saturated vapour at -18.5 degrees celsius. DETERMINE the coefficient of performance..
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 20RQ: Welded ______sealed compressors are normally used in household refrigerators.
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![Refrigerant-134a enters the compressor of a refrigerator at 140kPa and - 10 degrees celsius at a rate of 0.3
m^3/min and leaves at 1 MPa. The isentropic efficiency of the compressor is 78%. The refrigerant enters the
throttling valve at 0.95 MPa and 30 degrees celsius and leaves the evaporator as saturated vapour at -18.5
degrees celsius. DETERMINE the coefficient of performance..](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8c07b6f7-7f32-4b99-b80b-7b671c033c51%2F26aa74e2-7af1-437a-8c28-abc8930d4dda%2Fjvq6jhh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Refrigerant-134a enters the compressor of a refrigerator at 140kPa and - 10 degrees celsius at a rate of 0.3
m^3/min and leaves at 1 MPa. The isentropic efficiency of the compressor is 78%. The refrigerant enters the
throttling valve at 0.95 MPa and 30 degrees celsius and leaves the evaporator as saturated vapour at -18.5
degrees celsius. DETERMINE the coefficient of performance..
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