Refrigerant R-134a enters a steady-flow compressor at 5 °C and as a saturated vapor. a) The refrigerant follows a reversible, adiabatic process in the compressor and leaves at 1.5 MPa. The mass flow rate of the R-134a through the compressor is 0.02 kg/s. Neglecting changes in kinetic energy, calculate the power required by the compressor and the temperature of the R-134a as it leaves the compressor. b) Suppose the compressor in part (a) has friction that generates entropy as the refrigerant flows through the compressor at a rate of 1.5 (J/K) / s. What power would be required by this compressor and what would be the temperature of the refrigerant as it leaves the compressor?

Refrigerant R-134a enters a steady-flow compressor at 5 °C and as a saturated vapor. a) The refrigerant follows a reversible, adiabatic process in the compressor and leaves at 1.5 MPa. The mass flow rate of the R-134a through the compressor is 0.02 kg/s. Neglecting changes in kinetic energy, calculate the power required by the compressor and the temperature of the R-134a as it leaves the compressor. b) Suppose the compressor in part (a) has friction that generates entropy as the refrigerant flows through the compressor at a rate of 1.5 (J/K) / s. What power would be required by this compressor and what would be the temperature of the refrigerant as it leaves the compressor?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Question

Refrigerant R-134a enters a steady-flow compressor at 5 °C and as a saturated vapor.
a) The refrigerant follows a reversible, adiabatic process in the compressor and
leaves at 1.5 MPa. The mass flow rate of the R-134a through the compressor is
0.02 kg/s. Neglecting changes in kinetic energy, calculate the power required by
the compressor and the temperature of the R-134a as it leaves the compressor.
b) Suppose the compressor in part (a) has friction that generates entropy as the
refrigerant flows through the compressor at a rate of 1.5 (J/K) /s. What power
would be required by this compressor and what would be the temperature of the
refrigerant as it leaves the compressor?

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