A commercial refrigerator using Isobutane operates on the simple saturation cycle with saturated suction and discharge temperature of –25°C and 55°C respectively. (a) Calculate the COP and power required to run the compressor per ton of refrigeration. (b) If the liquid is subcooled by 10°C in the condenser, calculate the COP and the power required per ton of refrigeration. (c) If the liquid is further subcooled in a regenerative heat exchanger with superheating of the vapour by 30°C, what is the increase in COP and decrease in power required?

A commercial refrigerator using Isobutane operates on the simple saturation cycle with saturated suction and discharge temperature of –25°C and 55°C respectively. (a) Calculate the COP and power required to run the compressor per ton of refrigeration. (b) If the liquid is subcooled by 10°C in the condenser, calculate the COP and the power required per ton of refrigeration. (c) If the liquid is further subcooled in a regenerative heat exchanger with superheating of the vapour by 30°C, what is the increase in COP and decrease in power required?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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