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Why is such a warning appearing for the data imported from Aspen into EDR?

2019-11-04View Original

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Why is such a warning appearing for the data imported from Aspen into EDR? Version 8.4
Reply #22019-11-04
Tip: The vapor-phase mol content in stream 1 is outside the allowable range; please check.
Reply #32019-11-04
I understand what you mean, but I don’t know why such a problem occurs when importing from Aspen into EDR; the parameters in Aspen are fine
Reply #42019-11-04
Then take a look at how the vapor fraction of this stream differs between A+ and EDR. Is it because the process goes through a pump valve in A+, which is not taken into account thermodynamically, whereas the phase state is automatically calculated in EDR?
Reply #52019-11-05
Only the ten temperature points of the heat exchanger at three different pressures were input into EDR. It doesn’t involve pumps or valves; this kind of situation has never occurred before, and I’m not sure where the problem lies.
Reply #62019-11-05
If I’m not mistaken, this error refers to the molecular weight.
Reply #72019-11-05
But I checked, and the actual molecular weight entered is 3.286. I can’t even find where the numbers in this warning are?

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