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by jasper
02 March 2025, 08:32
Forum: COCO (AmsterCHEM)
Topic: COCO 3.9 released
Replies: 2
Views: 6168

Re: COCO 3.9 released

eNRTL requires reactive equilibria (at least in terms of true composition, the composition is a result of the equilibrium routine), so it is not really possible to do this until the upcoming reaction interface standard is published, and supported by COCO. And then still it requires a significant imp...
by jasper
01 March 2025, 12:09
Forum: COCO (AmsterCHEM)
Topic: COCO 3.9 released
Replies: 2
Views: 6168

COCO 3.9 released

We are happy to announce the release of COCO 3.9, with the following improvements: Additional compounds from the ChemSep compound database, as well as various corrections in compound data, Fixed workflow when mapping compounds upon importing more than one property package, Stream converter fixes in ...
by jasper
04 February 2025, 09:09
Forum: COCO (AmsterCHEM)
Topic: COCO 3.8 released
Replies: 0
Views: 9519

COCO 3.8 released

The forum is back up and running! Therefore at this point we are happy to report the release of COCO 3.8 Since 3.7, the following improvements were made: A new energy measure unit, to convert energy stream values to information streams Allowing sub-selection of feeds and products in COCO Flowsheeet ...
by jasper
13 March 2024, 09:11
Forum: COCO (AmsterCHEM)
Topic: COFE Flowsheet protection
Replies: 10
Views: 58637

Re: COFE Flowsheet protection

Once you created the COM object you should be able to use all the same functions. There is no external stop function. This would also not be possible as Solve does not return control until it is done - it would have to be done from another thread, and the COFE object is apartment threaded (can only ...
by jasper
11 March 2024, 19:54
Forum: COCO (AmsterCHEM)
Topic: COFE Flowsheet protection
Replies: 10
Views: 58637

Re: COFE Flowsheet protection

... down side is that apparently Excel can only contain 32000 or so characters in a cell: https://techcommunity.microsoft.com/t5/ ... /m-p/66355 - for larger strings you need to find a different way, e.g. split it up over multiple cells.
by jasper
11 March 2024, 19:52
Forum: COCO (AmsterCHEM)
Topic: COFE Flowsheet protection
Replies: 10
Views: 58637

Re: COFE Flowsheet protection

I am not sure whether this can be done. As the flowsheet is embedded as OLE object, Excel decides whether it should be saved or not. I suppose that if you edit the flowsheet after the solution was imposed, Excel will assume the OLE object was changed and it will be saved. But I do not see an easy wa...
by jasper
05 March 2024, 14:06
Forum: COCO (AmsterCHEM)
Topic: Normal volume flow computation
Replies: 3
Views: 17962

Re: Normal volume flow computation

The MeasureUnit help explains what the MeasureUnit does: https://www.cocosimulator.org/index_help.php?page=COUS/measureunit.htm I do not think there is one single definition that fits all purposes. If you need the ideal gas volume, I suggest you use the approach you sketched with the information cal...
by jasper
01 March 2024, 14:37
Forum: COCO (AmsterCHEM)
Topic: Normal volume flow computation
Replies: 3
Views: 17962

Re: Normal volume flow computation

Before the mixer: the values match to the 4th digit (corresponding with the accuracy of the gas constant you put in the information calculator) if you switch the vapor phase thermo to Ideal Gas. But in the document as attached, the vapor phase is set to Peng Robinson. After the mixer: If you bring s...
by jasper
15 February 2024, 14:56
Forum: COCO (AmsterCHEM)
Topic: COFE Flowsheet protection
Replies: 10
Views: 58637

Re: COFE Flowsheet protection

You can embed a COFE flowsheet directly in an Excel sheet (use the Excel template to get started). Then you can simply hide the sheet on which the COFE control is I suppose. Note that the template uses VBA macros, this may be a disadvantage. It is meant to demo automation. You can access automation ...
by jasper
15 February 2024, 14:54
Forum: MATLAB Unit Operation (AmsterCHEM)
Topic: MATLAB Unit Operation in Aspen Plus
Replies: 1
Views: 69414

Re: MATLAB Unit Operation in Aspen Plus

I did not get notified of this message and missed it. My apologies. Is the question still relevant?

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