J 5 A Carnot refrigeration cycle is used to maintain a room at 23 °C by removing heat from groundwater at 15 °C. Refrigerant R-134a enters the condenser as saturated vapor at 40 °C and leaves as saturated liquid at the same temperature. The evaporator pressure is 351 kPa. a) If the room is to receive 2kW, what is power input to the compressor? b) Net power input to cycle?

J 5 A Carnot refrigeration cycle is used to maintain a room at 23 °C by removing heat from groundwater at 15 °C. Refrigerant R-134a enters the condenser as saturated vapor at 40 °C and leaves as saturated liquid at the same temperature. The evaporator pressure is 351 kPa. a) If the room is to receive 2kW, what is power input to the compressor? b) Net power input to cycle?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter44: Geothermal Heat Pumps

Section: Chapter Questions

Problem 10RQ: A(n) ______well draws water from the top of thewater column, circulates it through the heat pump,...

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1. A standard vapor compression refrigeration system uses Ammonia as refrigerant. The Ammonia leaves the evaporator at – 20 degree Centigrade and the condenser pressure is 1200 kPa. The flow rate is 30 kg/min. Determine a) the tons of refrigeration b) the power required c) the COP.
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