A vapor-compression refrigeration system using ammonia as refrigerant is to be used to cool 45,000kg of water from 29C to 18C in five hours. The enthalpies in kJ/kg are as follows: evaporator exit= 1471.6, compressor outlet= 1650, condenser outlet= 410.4.

A vapor-compression refrigeration system using ammonia as refrigerant is to be used to cool 45,000kg of water from 29C to 18C in five hours. The enthalpies in kJ/kg are as follows: evaporator exit= 1471.6, compressor outlet= 1650, condenser outlet= 410.4.

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

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 12RQ: Refrigerators currently being manufactured in the United States are using______as their refrigerant.

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