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CAPE-OPEN Discussions about use and implementation of the CAPE-OPEN standard 2021-12-22T11:22:14+00:00 http://cape-open-forum.org/feed.php?f=58&t=740 2021-12-22T11:22:14+00:00 2021-12-22T11:22:14+00:00 http://cape-open-forum.org/viewtopic.php?t=740&p=2637#p2637 <![CDATA[Re: Compounds Equilibrium calculations]]> Statistics: Posted by jasper — 22 December 2021, 11:22

]]> 2021-12-22T09:14:12+00:00 2021-12-22T09:14:12+00:00 http://cape-open-forum.org/viewtopic.php?t=740&p=2636#p2636 <![CDATA[Re: Compounds Equilibrium calculations]]> Statistics: Posted by Vanessa — 22 December 2021, 09:14

]]> 2021-12-22T08:01:26+00:00 2021-12-22T08:01:26+00:00 http://cape-open-forum.org/viewtopic.php?t=740&p=2635#p2635 <![CDATA[Re: Compounds Equilibrium calculations]]>
Screenshot 2021-12-22 092322.png

Statistics: Posted by jasper — 22 December 2021, 08:01

]]> 2021-12-21T15:39:28+00:00 2021-12-21T15:39:28+00:00 http://cape-open-forum.org/viewtopic.php?t=740&p=2634#p2634 <![CDATA[Re: Compounds Equilibrium calculations]]> Statistics: Posted by Vanessa — 21 December 2021, 15:39

]]> 2021-12-21T07:50:33+00:00 2021-12-21T07:50:33+00:00 http://cape-open-forum.org/viewtopic.php?t=740&p=2633#p2633 <![CDATA[Re: Compounds Equilibrium calculations]]> Statistics: Posted by jasper — 21 December 2021, 07:50

]]> 2021-12-20T20:17:40+00:00 2021-12-20T20:17:40+00:00 http://cape-open-forum.org/viewtopic.php?t=740&p=2632#p2632 <![CDATA[Re: Compounds Equilibrium calculations]]> Statistics: Posted by Vanessa — 20 December 2021, 20:17

]]> 2021-12-20T20:15:29+00:00 2021-12-20T20:15:29+00:00 http://cape-open-forum.org/viewtopic.php?t=740&p=2631#p2631 <![CDATA[Re: Compounds Equilibrium calculations]]> Statistics: Posted by Vanessa — 20 December 2021, 20:15

]]> 2021-12-20T15:23:33+00:00 2021-12-20T15:23:33+00:00 http://cape-open-forum.org/viewtopic.php?t=740&p=2630#p2630 <![CDATA[Re: Compounds Equilibrium calculations]]>
If these compounds can only appear in the liquid phase - just make the vapor pressure really low (e.g. a constant, 1e-100):

Screenshot 2021-12-20 164451.png

Same for cobalt sulphate. Then select T-correlation to be used for vapor pressure:

Screenshot 2021-12-20 164130.png

Unless these compounds to appear in a solid phase (and only in solid)? In this case, vapor pressure is not needed - all that is needed is density, enthalpy and entropy contributions:

[link]https://www.cocosimulator.org/index_help.php?page=TEA/solidonly.htm[/link]

Statistics: Posted by jasper — 20 December 2021, 15:23

]]> 2021-12-20T14:18:41+00:00 2021-12-20T14:18:41+00:00 http://cape-open-forum.org/viewtopic.php?t=740&p=2629#p2629 <![CDATA[Compounds Equilibrium calculations]]>
I am doing, mineral processing simulation and I had to add some compounds on my own. I was able to create a package in TEA but my challenge is of the compounds added, cobalt sulphate and sodium metabisulfite show the following error when I try to add them as feed streams.

"Failed to calculate feed stream: CalcEquilibrium failed: CalcEquilibrium failed: CalcEquilibrium failed: TP flash failed: Failed to obtain vaporPressure for compound Sodium Metabisulfite"

How can I correct this error? I have attached the flowsheet.

Statistics: Posted by Vanessa — 20 December 2021, 14:18

]]>