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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 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[TEA Thermodynamic server (AmsterCHEM) • 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[TEA Thermodynamic server (AmsterCHEM) • 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[TEA Thermodynamic server (AmsterCHEM) • 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[TEA Thermodynamic server (AmsterCHEM) • 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[TEA Thermodynamic server (AmsterCHEM) • 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[TEA Thermodynamic server (AmsterCHEM) • 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[TEA Thermodynamic server (AmsterCHEM) • 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[TEA Thermodynamic server (AmsterCHEM) • 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[TEA Thermodynamic server (AmsterCHEM) • 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

]]> 2021-02-10T10:42:57+00:00 2021-02-10T10:42:57+00:00 http://cape-open-forum.org/viewtopic.php?t=706&p=2464#p2464 <![CDATA[TEA Thermodynamic server (AmsterCHEM) • Re: Adding Air to COCO Property Package]]> Statistics: Posted by jasper — 10 February 2021, 10:42

]]> 2021-02-10T09:11:33+00:00 2021-02-10T09:11:33+00:00 http://cape-open-forum.org/viewtopic.php?t=706&p=2463#p2463 <![CDATA[TEA Thermodynamic server (AmsterCHEM) • Adding Air to COCO Property Package]]>
I have been trying to add Air as a compound to the property package but a message keeps showing up.

Statistics: Posted by Chani — 10 February 2021, 09:11

]]> 2020-10-14T14:55:37+00:00 2020-10-14T14:55:37+00:00 http://cape-open-forum.org/viewtopic.php?t=691&p=2425#p2425 <![CDATA[TEA Thermodynamic server (AmsterCHEM) • Re: combining two property packages within one]]>
Calculations work now.

However, they are quite slow.

Solving a flowsheet that consists of one stream only takes up to 30 seconds,
although Cofe shows a solving time of 50 ms.

Using TEA-internal models and equilibrium solver results in much faster calculations,
However, this is not an option due to the absence of desired models.

Is there any trick to avoid those long calculation times?

Statistics: Posted by Stephan — 14 October 2020, 14:55

]]> 2020-10-13T09:35:46+00:00 2020-10-13T09:35:46+00:00 http://cape-open-forum.org/viewtopic.php?t=691&p=2424#p2424 <![CDATA[TEA Thermodynamic server (AmsterCHEM) • Re: combining two property packages within one]]>
Instead, set up a new TEA package. Then start with loading a ChemSep package as the equilibrium provider:

Screenshot 2020-10-13 113612.png

then you can use the equilibrium server as calculation method as well. And you can add other external calculation methods.

Let me know if the trouble continues.

Statistics: Posted by jasper — 13 October 2020, 09:35

]]> 2020-10-09T09:33:24+00:00 2020-10-09T09:33:24+00:00 http://cape-open-forum.org/viewtopic.php?t=691&p=2423#p2423 <![CDATA[TEA Thermodynamic server (AmsterCHEM) • Re: combining two property packages within one]]> This should reproduce te error,
when combining water and methanol within the teststream.

Statistics: Posted by Stephan — 09 October 2020, 09:33

]]> 2020-10-09T05:51:29+00:00 2020-10-09T05:51:29+00:00 http://cape-open-forum.org/viewtopic.php?t=691&p=2422#p2422 <![CDATA[TEA Thermodynamic server (AmsterCHEM) • Re: combining two property packages within one]]> Statistics: Posted by jasper — 09 October 2020, 05:51

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