10 .In a certain refrigeration system for low temperature application , a two- stage operation is desirable which employs ammonia system that serves a 30 ton evaporator at -30 °C.The system uses a direct contact cascade condenser and the condenser temperature is 40 °C. How much bigger is the mass of the high pressure loop compared to the mass of the low pressure loop? A) 0.112 kg/sec B) 11.38 6 C) 1.56 kg D) 0.26 kg /sec min min

10 .In a certain refrigeration system for low temperature application , a two- stage operation is desirable which employs ammonia system that serves a 30 ton evaporator at -30 °C.The system uses a direct contact cascade condenser and the condenser temperature is 40 °C. How much bigger is the mass of the high pressure loop compared to the mass of the low pressure loop? A) 0.112 kg/sec B) 11.38 6 C) 1.56 kg D) 0.26 kg /sec min min

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

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 4RQ: A typical temperature relationship between a high-efficiency condenser and the ambient temperature...

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