Q6) In a refrigerant 22 refrigeration system the capacity is 180 kW at a temperature of -30°C. The vapor from the evaporator is pumped by one compressor to the condensing pressure of 1500 kPa. Later the system is revised to a two-stage compression operating on the cycle shown in the Figure with intercooling but no removal of flash gas at 600 kPa. (a) Calculate the power required by the single compressor in the original system. (b) Calculate the total power required by the two compressors in the revised system. (Ans. (a) 71.23 kW and (b) 70.73 kW). Conden I500 Intercoole Eveporator Lowae compressor

Q6) In a refrigerant 22 refrigeration system the capacity is 180 kW at a temperature of -30°C. The vapor from the evaporator is pumped by one compressor to the condensing pressure of 1500 kPa. Later the system is revised to a two-stage compression operating on the cycle shown in the Figure with intercooling but no removal of flash gas at 600 kPa. (a) Calculate the power required by the single compressor in the original system. (b) Calculate the total power required by the two compressors in the revised system. (Ans. (a) 71.23 kW and (b) 70.73 kW). Conden I500 Intercoole Eveporator Lowae compressor

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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Question

i need the answer quickly

Q6) In a refrigerant 22 refrigeration system the capacity is 180 kW at a
temperature of -30°C. The vapor from the evaporator is pumped by one
compressor to the condensing pressure of 1500 kPa. Later the system is
revised to a two-stage compression operating on the cycle shown in the
Figure with intercooling but no removal of flash gas at 600 kPa. (a)
Calculate the power required by the single compressor in the original
system. (b) Calculate the total power required by the two compressors in
the revised system.
(Ans. (a) 71.23 kW and (b) 70.73 kW).
Condenser
1500 KP
lighstage
compressor
Intercooler
600
Evaporator
180 W
30°C
Lowstage
compressor

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