An air-conditioner with refrigerant 134-a as the working fluid is used to keep a room at 26°C by rejecting the waste hea

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An Air Conditioner With Refrigerant 134 A As The Working Fluid Is Used To Keep A Room At 26 C By Rejecting The Waste Hea 1 (131.16 KiB) Viewed 28 times

An air-conditioner with refrigerant 134-a as the working fluid is used to keep a room at 26°C by rejecting the waste heat to the outdoor air at 34°C. The room gains heat through the walls and the windows at a rate of 250 kJ/min while the heat generated by the computer, TV and lights amounts to 900 W. The refrigerant enters the compressor at 500 kPa as a saturated vapour at a rate of 100 L/min and leaves at 1200 kPa and 50°C. Determine the (a) actual COP, (b) maximum COP and (c) minimum volume flow rate of the refrigerant at the compressor inlet for the same compressor inlet and exit conditions.