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Issues regarding Aspen PLUS simulation of compressors

2009-09-25View Original

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Guys, when I use Aspen PLUS to simulate compressors, is it possible to change only the pressure of the flow while trying to keep its temperature and molar flow rate as constant as possible? ? ? How do I set it up? ! Thank you! !
Reply #22009-09-25
You can set the inlet and outlet pressure difference, or the outlet pressure (the inlet pressure being the pressure of the incoming flow), to the value you desire.
Reply #32009-09-26
The molar flow rate is supposed to remain constant, right? ? The mass flow rate remains constant! It seems unlikely that the temperature will remain constant; use a cooler to lower the temperature!
Reply #42009-09-26
Compressors generally have inter-stage coolers
Reply #52009-09-27
When I used Aspen PLUS to simulate the compressor, the output molar flow rate increased by dozens of times! ! ! ? ? ? I don’t know what’s going on! ! I hope experienced experts can help me out! ! ! !

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