A vapor-compression refrigeration system operates on the cycle shown below. The refrigerant is tetrafluoroethane. For the following set of operating conditions, determine the circulation rate of the refrigerant, the heat-transfer rate in the condenser, the power requirement, the coefficient of performance of the cycle, and the coefficient of performance of a Carnot refrigeration cycle operating between the same temperature levels. Use the table containing the properties of saturated 1,1,1,2-tetrafluoroethane (R134A) and the PH diagram for tetrafluoroethane (HFC-134a). (Include a minus sign if required.) S Vapor-compression refrigeration cycle. Evaporation T = -6°C Condensation T = 26°C n(compressor) = 0.78 Refrigeration rate = 500 KJ-s-1 Throttle valve Condenser Compressor Evaporator 2

A vapor-compression refrigeration system operates on the cycle shown below. The refrigerant is tetrafluoroethane. For the following set of operating conditions, determine the circulation rate of the refrigerant, the heat-transfer rate in the condenser, the power requirement, the coefficient of performance of the cycle, and the coefficient of performance of a Carnot refrigeration cycle operating between the same temperature levels. Use the table containing the properties of saturated 1,1,1,2-tetrafluoroethane (R134A) and the PH diagram for tetrafluoroethane (HFC-134a). (Include a minus sign if required.) S Vapor-compression refrigeration cycle. Evaporation T = -6°C Condensation T = 26°C n(compressor) = 0.78 Refrigeration rate = 500 KJ-s-1 Throttle valve Condenser Compressor Evaporator 2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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A vapor-compression refrigeration system operates on the cycle shown below. The refrigerant is tetrafluoroethane. For the following
set of operating conditions, determine the circulation rate of the refrigerant, the heat-transfer rate in the condenser, the power
requirement, the coefficient of performance of the cycle, and the coefficient of performance of a Carnot refrigeration cycle operating
between the same temperature levels. Use the table containing the properties of saturated 1,1,1,2-tetrafluoroethane (R134A) and
the PH diagram for tetrafluoroethane (HFC-134a). (Include a minus sign if required.)
T
4
S
Vapor-compression refrigeration cycle.
Evaporation T = -6°C
Condensation T = 26°C
2
4
Throttle
valve
Condenser
3
Compressor
Evaporator
2
n(compressor) = 0.78
Refrigeration rate = 500 kJ.s-1
The circulation rate of the refrigerant is 3.18 kg-s-1.
The heat-transfer rate in the condenser is -607.6 kJ.s-1
The power requirement is 103.2417 KW.
The coefficient of performance of the cycle is 4.843
The coefficient of performance of a Carnot refrigeration cycle operating between the same temperature levels is
8.35

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