Refrigerant 134a enters the compressor of a refrigeration system as saturated vapor at 0.14 MPa and leaves as a superheated vapor at 0.8 MPa and 60 C at a rate of 0.06 kg/s. The flow is steadystate. a. Determine the flow work (in kW) into and out of the compressor. b. Determine the specific enthalpy difference between the inlet and the outlet of the compressor, in kJ/kg. c. Assuming that the compressor is adiabatic (no heat transfer) and that kinetic and potential energy effects are negligible, determine the power delivered by the compressor to the refrigerant, in kW.

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Power braking's benefits

Among the big advantages of a power braking system are it's: Regarded as safer. The heat caused by the friction of drum brakes causes them to wear down. Because disc brake systems have better heat distribution, they're more efficient

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