R-134a flows steadily through a compressor. The inlet of the compressor is maintained at 400 kPa...

 

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R-134a flows steadily through a compressor. The inlet of the compressor is maintained at 400 kPa and the refrigerant enters the compressor superheated by 1.09°C (i.e., 1.09°C above the saturation temperature). The outlet of the compressor is maintained at 1200 kPa. Dout Din a. The ratio of the outlet pipe diameter to the inlet pipe diameter is = 0.2, and the specific kinetic energy of the fluid at the pipe outlet is 100 times that of the entering fluid. What is the temperature of the refrigerant at the compressor outlet? Do not interpolate-just find the temperature that most closely matches your calculations. b. The specific work input to the compressor is measured to be w= 26.5 kJ/kg and the outlet velocity is measured to be 60 m/s. Is this an adiabatic compressor? If it isn't, what is the heat transfer per unit mass of refrigerant flowing through the compressor, and what direction is this heat transfer? R-134a flows steadily through a compressor. The inlet of the compressor is maintained at 400 kPa and the refrigerant enters the compressor superheated by 1.09°C (i.e., 1.09°C above the saturation temperature). The outlet of the compressor is maintained at 1200 kPa. Dout Din a. The ratio of the outlet pipe diameter to the inlet pipe diameter is = 0.2, and the specific kinetic energy of the fluid at the pipe outlet is 100 times that of the entering fluid. What is the temperature of the refrigerant at the compressor outlet? Do not interpolate-just find the temperature that most closely matches your calculations. b. The specific work input to the compressor is measured to be w= 26.5 kJ/kg and the outlet velocity is measured to be 60 m/s. Is this an adiabatic compressor? If it isn't, what is the heat transfer per unit mass of refrigerant flowing through the compressor, and what direction is this heat transfer?

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a To solve for the outlet temperature of the refrigerant at the compressor outlet we can use the ene... View the full answer