Refrigerant-134a enters an adiabatic compressor at 100 kPa and –24°C with a flow rate of 1.25 m3/min and leaves at 800 kPa and 60°C. Determine the mass flow rate of R-134a and the power input to the compressor. Use data from the steam tables. Heat transfer with the surroundings is negligible. Neglect kinetic and potential energy changes.

Explanation:

                                       = ((1.25 / 60) / 0.19473)

                                  m = 0.107 kg / s

                                + W =

                                         W =

                                              =

                                              = ((1.25 / 60) / 0.19473) (296.82 - 236.34) kW

                                        W  = 6.47 kW.

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explanation:

answer:

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