Regarding the pump efficiency?

2009-09-23View Original

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I would like to ask: in the pump simulation results provided by Aspen, how does the software determine the pump efficiency used? It was found that the efficiency value varies in different situations! ! !

Reply #22009-09-23

Greater than zero and less than one. It can be specified, and pressure drop and energy flow can also be specified.

Reply #32009-09-23

Thank you first! But I did not specify that efficiency value; Aspen will automatically provide one in its calculation results, and that value varies depending on the circumstances! What I want to ask is how Aspen determines the pump efficiency value?

Reply #42009-09-24

If you do not specify the efficiency, APSEN will handle it automatically using the default settings. When the outlet pressure is greater than 41.37 MPa, the default efficiency is 0.9; if the outlet pressure

Reply #52009-09-24

Thanks first! Why do I see that the outlet pressure is 1.9 MPa gauge, while Aspen gives an efficiency value of 0.69384? The efficiency of a 4.2MPAG is 0.76752634! It seems there’s no 0.65/0.9! 4# laipi*ao*n

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Regarding the pump efficiency?

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