CAPE-OPEN

Indeed, I was wrong.
I just misinterpreted the stream informations.
The flash unit behaves as it should.

Indeed, I atached the wrong file. Here is the right one.

I have a flash unit operation in a testfile.
When I run it, the liquid outlet has a higher water flow than the condensed portion of the water in the inlet stream.
How can that be?

See attached file.

Pressing the Solve Button produces the calculation error.

When klicking Settings->Property packages-> Prausnitz->Solve Options
and setting accuracy from 1E-6 to 1E-9 it reverts back when saving the Chemsep file.

This is an update of an older post here:

http://www.cape-open-forum.org/viewtopic.php?f=5&t=705

The pressure error is still there.
Has the Chemsep update been released already?

Changing those settings doesn't resolve the issue. Furthermore, at some flowsheets thoses settings can't be changed. Whenever I change iteration and accuracy settings within Chemsep and try to save the file, values are set back to the defaults. Depending on the file sometimes changing the accuracy o...

The bug is still there ...

It also doesn't converge for heat transfer values > 0W/K.
Error message is the same as for 0 W/K.

I have a co-current heat exchanger configured via LMTD.
However, when setting a value different from 0 W/K it failes to solve
(line search didn't converge).

I have a flowsheet set as unit operation. Thermopackages of internal and external flowsheet are identical. However, the compounds do not match on internal and external material streams, according to the window that pups up when clicking on inspect mapped compounds within the internal flowsheet. Howe...