1. Refrigeration Cycle. A refrigerator operates on the ideal vapor-compression refrigeration cycle and use R 134a as the working fluid. The condenser operates 1.4 MPa and the evaporator at 0.140 MPa. (a) Show the cycle on a T-s diagram, indicating the enthalpies at the end of each process, with respect to saturation lines. For a mass flow rate of 0.100 kg/s, determine (b) the net power input to the compressor, in kW, (c) the heat rejection to the environment, in kW, (d) the heat rejection from the cold refrigerated space to the evaporator, in kW, and (e) the coefficient of performance, in %.
1. Refrigeration Cycle. A refrigerator operates on the ideal vapor-compression refrigeration cycle and use R 134a as the working fluid. The condenser operates 1.4 MPa and the evaporator at 0.140 MPa. (a) Show the cycle on a T-s diagram, indicating the enthalpies at the end of each process, with respect to saturation lines. For a mass flow rate of 0.100 kg/s, determine (b) the net power input to the compressor, in kW, (c) the heat rejection to the environment, in kW, (d) the heat rejection from the cold refrigerated space to the evaporator, in kW, and (e) the coefficient of performance, in %.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:1. Refrigeration Cycle. A refrigerator operates on the ideal vapor-compression refrigeration cycle and use R 134a
as the working fluid. The condenser operates 1.4 MPa and the evaporator at 0.140 MPa.
(a) Show the cycle on a T-s diagram, indicating the enthalpies at the end of each process, with respect to saturation
lines.
For a mass flow rate of 0.100 kg/s, determine (b) the net power input to the compressor, in kW, (c) the heat
rejection to the environment, in kW, (d) the heat rejection from the cold refrigerated space to the evaporator, in
kW, and (e) the coefficient of performance, in %.
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