A refrigerant 134a of a vapor compression refrigeration system includes a liquid-suction heat exchanger. The heat exchanger cools saturated liquid coming from the condenser from 45 °C to 37 °C with the saturated vapor which comes from the evaporator at -8 °C. Calculate: a.) The COP of the system without heat exchanger. b.) The COP of the system with the heat exchanger. c.) Find the percent increase of performance of the system with the heat exchanger based on the system without heat exchanger. d.) Draw the schematic and P-h diagram of the two set-up.

A refrigerant 134a of a vapor compression refrigeration system includes a liquid-suction heat exchanger. The heat exchanger cools saturated liquid coming from the condenser from 45 °C to 37 °C with the saturated vapor which comes from the evaporator at -8 °C. Calculate: a.) The COP of the system without heat exchanger. b.) The COP of the system with the heat exchanger. c.) Find the percent increase of performance of the system with the heat exchanger based on the system without heat exchanger. d.) Draw the schematic and P-h diagram of the two set-up.

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 13RQ: If 14 gpm of water is flowing through an open-loop heat pump with a temperature difference of 7F,...

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