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A two-stage cascade system uses ammonia as the refrigerant. The evaporator is at -30OC temperature and the condenser in the high-pressure system is at 1514.3 kPa pressure. The cascade condenser is a direct contact type and has a refrigeration load of 100 TR. Determine: a) The mass flow rate of refrigerant in the low pressure and the high pressure systems. b) The total power required c) The heat removed in the

A two-stage cascade system uses ammonia as the refrigerant. The evaporator is at -30OC temperature and the condenser in the high-pressure system is at 1514.3 kPa pressure. The cascade condenser is a direct contact type and has a refrigeration load of 100 TR. Determine: a) The mass flow rate of refrigerant in the low pressure and the high pressure systems. b) The total power required c) The heat removed in the

Elements Of Electromagnetics
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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. A two-stage cascade system uses ammonia as the refrigerant. The evaporator is at

-30OC temperature and the condenser in the high-pressure system is at 1514.3 kPa

pressure. The cascade condenser is a direct contact type and has a refrigeration

load of 100 TR. Determine:

a) The mass flow rate of refrigerant in the low pressure and the high pressure

systems.

b) The total power required

c) The heat removed in the condenser

d) The COP of the system

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