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A compressor operates at steady state with refrigerant R134a as the working fluid. The refrigerant enters at 2.4 bar, 0oC with a volumetric flow of 0.38 m3/min. The diameters of the inlet and exit pipes are 4 and 2 cm , respectively. At the exit, the pressure is 12 bar and the temperature is 50oC. If the magnitude of the heat transfer from the compressor to the surroundings is 5% of the compressor power input, determine the power input, in kW.

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