Required information A commercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -30°C by rejecting its waste heat to cooling water that enters the condenser at 18°C at a rate of 0.310 kg/s and leaves at 26°C. The refrigerant enters the condenser at 1.2 MPa and 65°C and leaves at 42°C. The inlet state of the compressor is 60 kPa and -34°C and the compressor is estimated to gain a net heat of 450 W from the surroundings. The heat exchanger loses no heat to the environment. 26°C 42°C Water 18°C 1.2 MPa 65°C 2 (3) Condenser ↑gin Expansion valve Evaporator Compressor 60 kPa -34°C 4 1 Οι Determine the quality of the refrigerant at the evaporator inlet. (Take the required values from saturated refrigerant-134a tables.) (Round the final answer to four decimal places.) The quality of the refrigerant at the evaporator inlet is
Required information A commercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -30°C by rejecting its waste heat to cooling water that enters the condenser at 18°C at a rate of 0.310 kg/s and leaves at 26°C. The refrigerant enters the condenser at 1.2 MPa and 65°C and leaves at 42°C. The inlet state of the compressor is 60 kPa and -34°C and the compressor is estimated to gain a net heat of 450 W from the surroundings. The heat exchanger loses no heat to the environment. 26°C 42°C Water 18°C 1.2 MPa 65°C 2 (3) Condenser ↑gin Expansion valve Evaporator Compressor 60 kPa -34°C 4 1 Οι Determine the quality of the refrigerant at the evaporator inlet. (Take the required values from saturated refrigerant-134a tables.) (Round the final answer to four decimal places.) The quality of the refrigerant at the evaporator inlet is
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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