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Refrigerant R-134a is compressed steadily and adiabatically

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Refrigerant R-134a is compressed steadily and adiabatically in a reversible compressor. The volume flow rate entering the compressor is 800 ft3/min. The R-134a enters the compressor at 120 psia, 100 °F and leaves with its pressure being twice the inlet value. Neglect kinetic energy changes, and calculate the power required to operate the compressor.

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Please see the attached file.

Note that the compression stage is usually isentropic.
From the saturation table ...

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The solution provides detailed explanations, including diagram and reference, for the compressor problem.