A 15-ton refrigeration system is used to make ice. The water is available at 20°C. Refrigerant 12 is used with saturated temperature limits of -25°C and 54°C. Determine (a) the COP, (b) the refrigerant flow rate, (c) the temperature at discharge of the compressor

A 15-ton refrigeration system is used to make ice. The water is available at 20°C. Refrigerant 12 is used with saturated temperature limits of -25°C and 54°C. Determine (a) the COP, (b) the refrigerant flow rate, (c) the temperature at discharge of the compressor

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 1RQ: Geothermal heat pumps, or water-source heat pumps, are classified as either _____loop or _____loop...

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Concept explainers

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.

Question

A 15-ton refrigeration system is used to make ice. The water is available at 20°C. Refrigerant
12 is used with saturated temperature limits of -25°C and 54°C. Determine (a) the COP, (b) the
refrigerant flow rate, (c) the temperature at discharge of the compressor, (d) the volume flow
rate, and (e) the maximum kg of ice manufactured per day.

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