b) A refrigeration system using R12 as refrigerant consists of three evaporators of capacities 20 TR at -3°C, 30 TR at 0°C and 10 TR at 5°C. The vapors leaving the three evaporators are dry saturated. The system is provided with individual compressors and multiple expansion valves. The condenser temperature is 40°C and the liquid leaving the condenser is saturated. Assuming isentropic compression in each compressor, find: i. The mass of the refrigerant flowing through each evaporator. ii. The power required to drive the system. iii. The COP of the system. Draw the cycle and system diagram.
b) A refrigeration system using R12 as refrigerant consists of three evaporators of capacities 20 TR at -3°C, 30 TR at 0°C and 10 TR at 5°C. The vapors leaving the three evaporators are dry saturated. The system is provided with individual compressors and multiple expansion valves. The condenser temperature is 40°C and the liquid leaving the condenser is saturated. Assuming isentropic compression in each compressor, find: i. The mass of the refrigerant flowing through each evaporator. ii. The power required to drive the system. iii. The COP of the system. Draw the cycle and system diagram.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Draw cycle and system diagram i well give thumb up
Transcribed Image Text:b) A refrigeration system using R12 as refrigerant consists of three evaporators of capacities 20 TR
at -3°C, 30 TR at 0°C and 10 TR at 5°C. The vapors leaving the three evaporators are dry
saturated. The system is provided with individual compressors and multiple expansion valves.
The condenser temperature is 40°C and the liquid leaving the condenser is saturated. Assuming
isentropic compression in each compressor, find:
i. The mass of the refrigerant flowing through each evaporator.
ii. The power required to drive the system.
iii. The COP of the system.
Draw the cycle and system diagram.
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