A vapor-compression refrigeration system circulates Refrigerant 134a at a rate of 0.15 kg/s. The refrigerant enters the compressor at -10 degees Celcius, 1 bar, and exits at 8 bar. The isentropic compressor efficiency is 76%. There are appreciable pressure drops as the refrigerant flows through the condenser and evaporator. The refrigerant leaves the condenser at 8 bar and 30 degrees Celcius. Ignoring the heat transfer between the compressor and its surroundings, determine: a) The rate at which energy is removed from the refrigerated space in kW b) The coefficient of performance

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A vapor-compression refrigeration system circulates Refrigerant 134a at a rate of 0.15 kg/s. The refrigerant enters the compressor at -10 degees Celcius, 1 bar, and exits at 8 bar. The isentropic compressor efficiency is 76%. There are appreciable pressure drops as the refrigerant flows through the condenser and evaporator. The refrigerant leaves the condenser at 8 bar and 30 degrees Celcius. Ignoring the heat transfer between the compressor and its surroundings, determine:

  • a) The rate at which energy is removed from the refrigerated space in kW
  • b) The coefficient of performance
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