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Q.6 A vapor compression cycle uses R134a as the refrigerant. The vapor condenses at 40°C and is subcooled to 35°C before entering the expansion valve. The evaporating temperature is -5°C. The vapor leaving the evaporator is superheated to 5°C at entry to the compressor. The heat absorption rate is 13 kW and the compression process is isentropic. Calculate (i) the refrigerant flow rate, (ii) the work input, and (iii) the COP. [Answers: (i) 0.0837 kgs ¹, (ii) 2.63 kW, (iii) 4.95

Q.6 A vapor compression cycle uses R134a as the refrigerant. The vapor condenses at 40°C and is subcooled to 35°C before entering the expansion valve. The evaporating temperature is -5°C. The vapor leaving the evaporator is superheated to 5°C at entry to the compressor. The heat absorption rate is 13 kW and the compression process is isentropic. Calculate (i) the refrigerant flow rate, (ii) the work input, and (iii) the COP. [Answers: (i) 0.0837 kgs ¹, (ii) 2.63 kW, (iii) 4.95

Elements Of Electromagnetics
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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A vapor compression cycle uses R134a as the refrigerant. The Q.6 vapor condenses at 40°C and is subcooled to 35°C before entering the cxpansion valve. The evaporating temperature is -5°C. The vapor leaving the evaporator is superheated to 5°C at entry to the compressor. The heat absorption rate is 13 kW and the compression process is isentropic. Calculate (i) the refrigerant flow ratc, (ii) the work input, and (iii) the COP. [Answers: (i) 0.0837 kgs", (ii) 2.63 kW, (iii) 4.95
Transcribed Image Text:A vapor compression cycle uses R134a as the refrigerant. The Q.6 vapor condenses at 40°C and is subcooled to 35°C before entering the cxpansion valve. The evaporating temperature is -5°C. The vapor leaving the evaporator is superheated to 5°C at entry to the compressor. The heat absorption rate is 13 kW and the compression process is isentropic. Calculate (i) the refrigerant flow ratc, (ii) the work input, and (iii) the COP. [Answers: (i) 0.0837 kgs", (ii) 2.63 kW, (iii) 4.95
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