Assume the refrigerant is a saturated vapor at the

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A vapor-compression refrigeration cycle employed in a heat pump uses refrigerant R-134a, and provides 15 kW of heating. The evaporator pressure is 2.8 bar, and the condenser pressure is 7 bar. Assume the refrigerant is a saturated vapor at the evaporator exit, and a saturated liquid at the condesner exit. The isentropic compressor efficiency is 80%. Determine the following:

I) the compressor work (kJ/kg)

II) the heating provided (kJ/kg)

III) the refrigerant flow rate (kg/s)

IV) the COP

Reference no: EM13618871

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