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Refrigerant 134a is the working fluid in a vapor-compression heat pump that provides 35 kW to...

Refrigerant 134a is the working fluid in a vapor-compression heat pump that provides 35 kW to heat a dwelling on a day when the outside temperature is below freezing. Saturated vapor enters the compressor at 2.6 bar, and saturated liquid exits the condenser, which operates at 8 bar. Determine for an isentropic compressor efficiency of 85%: (a) the refrigerant mass flow rate, in kg/s. (b) the magnitude of the compressor power, in kW. (c) the coefficient of performance.

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