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aspen simulates a distillation column, the cycle never converges

2020-06-18View Original

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This post was last edited by ∞ on 2020-6-18 16:10. The ethanol-water distillation tower requires a product concentration of 94.5% for ethanol at the top of the tower. The cycle never converges. The aspen file is uploaded to the attachment. Thank you for your help.
Reply #22020-06-18
Try setting initial values ​​for circular logistics.
Reply #32020-06-18
94.5 wt %? 94.5 vol %? What physical property equation is used?
Reply #42020-06-18
I didn’t see the attachment, so I don’t know what’s going on.
Reply #52020-06-18
I uploaded it when I posted it, but I don’t know why it disappeared. When I try to upload it again, it says the file format is not supported.
Reply #62020-06-18
I sent the aspen file but I don’t know why it’s gone. Please go there.* * Take a look at the aspen file in the forum post https://bbs.mahoupao.com/thread-220761-1-1.html
Reply #72020-06-18
Try changing the number of cycles. Also tell you what version you are using, and also use the compressed form of bkp file.
Reply #82020-06-19
It has been modified, and it has not converged even after 200 modifications. The version is v10, and the bkp file is also uploaded to * * in the post.
Reply #92020-06-22
I ran into an error, but thank you anyway:handshake
Reply #102020-06-24
What you sent has already been run, right?

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