A two-stage cascade refrigeration system uses ammonia as refrigerant. The mass flow rate in the high-pressure loop is 0.10 kg/s. The condenser saturated temperature is 38 degree Celsius and the evaporator temperature is -40 degree Celsius. The cascade condenser is a direct contact type. Determine a.) the refrigerating effect in tons of refrigeration, b.) the power required, and c.) the COP.

A two-stage cascade refrigeration system uses ammonia as refrigerant. The mass flow rate in the high-pressure loop is 0.10 kg/s. The condenser saturated temperature is 38 degree Celsius and the evaporator temperature is -40 degree Celsius. The cascade condenser is a direct contact type. Determine a.) the refrigerating effect in tons of refrigeration, b.) the power required, and c.) the COP.

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

Chapter28: Special Refrigeration Applications

Section: Chapter Questions

Problem 14RQ: Truck trailers with their own refrigeration systems, which are transported on railway cars, are...

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