A two-stage compression refrigeration system with an adiabatic liquid- vapor separation unit uses refrigerant-134a as working fluid. The system operates the evaporator at -32°C, the condenser at 1.4 MPa, and the separator at 8.9°C. The refrigerant is circulated through the condenser at a rate of 2 kg/s. Given that the refrigerant is saturated liquid at the inlet of each expansion valve and saturated vapor at the inlet of each compressor, and the compressors are isentropic;
A two-stage compression refrigeration system with an adiabatic liquid- vapor separation unit uses refrigerant-134a as working fluid. The system operates the evaporator at -32°C, the condenser at 1.4 MPa, and the separator at 8.9°C. The refrigerant is circulated through the condenser at a rate of 2 kg/s. Given that the refrigerant is saturated liquid at the inlet of each expansion valve and saturated vapor at the inlet of each compressor, and the compressors are isentropic;
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Transcribed Image Text:A two-stage compression refrigeration system with an adiabatic liquid- vapor
separation unit uses refrigerant-134a as working fluid. The system operates the
evaporator at -32°C, the condenser at 1.4 MPa, and the separator at 8.9°C. The
refrigerant is circulated through the condenser at a rate of 2 kg/s. Given that the
refrigerant is saturated liquid at the inlet of each expansion valve and saturated
vapor at the inlet of each compressor, and the compressors are isentropic;
(1) show the process on a T-s diagram;
(ii) calculate the rate of cooling produced by evaporator; and
(iii) determine the total power requirement for this system
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