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R134a refrigerant is used as the working fluid, the cooled environment is fixed at -30\deg C. and condensation heat is given to the water entering the condenser at 18\deg C with a flow rate of 0.25 kg/s and remaining at 26\deg C. The refrigerant enters the condenser at a pressure of 1.2 MPa and a temperature of 65\deg C and is at a temperature of 42\deg C. The

R134a refrigerant is used as the working fluid, the cooled environment is fixed at -30\deg C. and condensation heat is given to the water entering the condenser at 18\deg C with a flow rate of 0.25 kg/s and remaining at 26\deg C. The refrigerant enters the condenser at a pressure of 1.2 MPa and a temperature of 65\deg C and is at a temperature of 42\deg C. The

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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R134a refrigerant is used as the working fluid, the cooled environment is fixed at -30\deg C. and condensation heat is given to the water entering the condenser at 18\deg C with a flow rate of 0.25 kg/s and remaining at 26\deg C. The refrigerant enters the condenser at a pressure of 1.2 MPa and a temperature of 65\deg C and is at a temperature of 42\deg C. The input state of the compressor is 38 kPa and -34\deg C, and it receives 450 W heat from the environment during the compression process. Calculate. a) Dryness degree of the refrigerant at the evaporator inlet, b) Cooling capacity, c) COP value of the cooling system, d) Theoretical maximum cooling capacity for the same compressor power.
Transcribed Image Text:R134a refrigerant is used as the working fluid, the cooled environment is fixed at -30\deg C. and condensation heat is given to the water entering the condenser at 18\deg C with a flow rate of 0.25 kg/s and remaining at 26\deg C. The refrigerant enters the condenser at a pressure of 1.2 MPa and a temperature of 65\deg C and is at a temperature of 42\deg C. The input state of the compressor is 38 kPa and -34\deg C, and it receives 450 W heat from the environment during the compression process. Calculate. a) Dryness degree of the refrigerant at the evaporator inlet, b) Cooling capacity, c) COP value of the cooling system, d) Theoretical maximum cooling capacity for the same compressor power.
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