16-4 A refrigerant 22 system has a capacity of 180 kW at an evaporating temperature of -30°°C when the condensing pressure is 1500 kPa. (a) Compute the power requirement for a system with a single compressor. (b)Compute the total power required by the two compressors in the system shown in Fig. 16-17 where there is no intercooling but there is flash-gas removal at600 kPa. Ans. 60.7 kW

16-4 A refrigerant 22 system has a capacity of 180 kW at an evaporating temperature of -30°°C when the condensing pressure is 1500 kPa. (a) Compute the power requirement for a system with a single compressor. (b)Compute the total power required by the two compressors in the system shown in Fig. 16-17 where there is no intercooling but there is flash-gas removal at600 kPa. Ans. 60.7 kW

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

16-4 A refrigerant 22 system has a capacity of 180 kW at an evaporating temperature of -30°°C
when the condensing pressure is 1500 kPa.
(a) Compute the power requirement for a system with a single compressor.
(b)Compute the total power required by the two compressors in the system shown in Fig.
16-17 where there is no intercooling but there is flash-gas removal at600 kPa. Ans. 60.7 kW
Condenser
1500 kPa
5
600 kPa
3
Flash-gas
compressor
Evaporator
180 kW
-30°C
Figure 16-17 Flash-gas removal system in Prob. 16-4.
2
Evaporator
compressor

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