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Compressor Dynamic Simulation
Started by walidd_23, Aug 31 2015 03:35 AM
2 replies to this topic
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#1
Posted 31 August 2015 - 03:35 AM
Dear All,
in our gas compression and reinjection facility, unexpected changing of Inlet gas composition has occurred ( the gas became leaner (M=22<< M design=27). wich routed to an effective influence of outlet pressure and compression system.
I am asked to model the Dynamic compression system , and study the behaviour of the compressor ( anti-surge..) with the new parameter and different scenario ( shutdown , decreasing of flow rate...ect)
My questions are:
1/ Can we use the same curve system of the compressor for the new gas composition.?if not how can we estimate new curves?
2/ how can we resize the surge valve?
Regards,
Walid,
#2
Posted 31 August 2015 - 07:09 PM
Polytropic head is a characteristic of the machine, not the gas. And you should engage the services of one who is skilled in the art of compressor modelling.
Bobby
#3
Posted 02 September 2015 - 03:47 AM
Thanks Bobby
What confused me that I found in compressor datasheet tow system curve of tow diffrent moleculair weight M=25 and, M=27 .
can you give me the procedure to size a surge valve ?
Regards,
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