5. A 45 tonnes capacity compound NH, compression system with water intercooler after low pressure compressor and liquid flash chamber has condensing pressure 14 bar. Evaporator pressure is 1.3 bar and intercooler and flash chamber pressure of 5 bar. Volumetric efficiency of both the compressors is 85%. Ammonia is cooled to 32°C in water intercooler and liquid NH, is cooled to 30°C in the refrigerant vapour heat exchanger. Assume both the compressions are isentropic and low pressure compressor gases are directly taken to the H.P. compressor after intercooling. Find the following: (i) Ammonia passing through evaporator per minute (ii) (iii) Ammonia passing through H.P. compressor per minute Total power required to run the system (iv) COP of the system (v) L.P. compressor displacement per mint Draw flow diagram for the system and represent the processes on p-h chart.

5. A 45 tonnes capacity compound NH, compression system with water intercooler after low pressure compressor and liquid flash chamber has condensing pressure 14 bar. Evaporator pressure is 1.3 bar and intercooler and flash chamber pressure of 5 bar. Volumetric efficiency of both the compressors is 85%. Ammonia is cooled to 32°C in water intercooler and liquid NH, is cooled to 30°C in the refrigerant vapour heat exchanger. Assume both the compressions are isentropic and low pressure compressor gases are directly taken to the H.P. compressor after intercooling. Find the following: (i) Ammonia passing through evaporator per minute (ii) (iii) Ammonia passing through H.P. compressor per minute Total power required to run the system (iv) COP of the system (v) L.P. compressor displacement per mint Draw flow diagram for the system and represent the processes on p-h chart.

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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