Search found 8 matches

by spertant
13 March 2024, 08:16
Forum: COCO (AmsterCHEM)
Topic: COFE Flowsheet protection
Replies: 10
Views: 46953

Re: COFE Flowsheet protection

I have another question about the COFE-in-EXCEL method. Is it possible to cancel a COFE calculation directly from EXCEL, for instance when the calculation struggles to converge ? To run the calculation, I use the macro : Public Sub COFE_CalculateFlowsheet() Dim COFEDocument As COFE_Document Set COFE...
by spertant
13 March 2024, 08:10
Forum: COCO (AmsterCHEM)
Topic: COFE Flowsheet protection
Replies: 10
Views: 46953

Re: COFE Flowsheet protection

Ok, indeed I noticed that if I manually modify the flowsheet, the modifications are saved. But the COFE-in-EXCEL method loses of its interest...
I will have a look at the COM object. With this method, can I use all the macro that I wrote, to get and set values from/to COFE ?
by spertant
11 March 2024, 15:15
Forum: COCO (AmsterCHEM)
Topic: COFE Flowsheet protection
Replies: 10
Views: 46953

Re: COFE Flowsheet protection

Hi Jasper, I have another question related to the above topic. Using the embedded flowsheet in excel, I noticed that when I modify the input values in the excel file, run the simulation, save the excel file and close it, if I re-open the excel file, the last results obtained by the COFE simulation h...
by spertant
05 March 2024, 12:20
Forum: COCO (AmsterCHEM)
Topic: Normal volume flow computation
Replies: 3
Views: 11409

Re: Normal volume flow computation

Ok, I thought that the normal volume flow was always computed using the Ideal Gas law, regardless of the selected equation of state.
Thanks
by spertant
01 March 2024, 13:43
Forum: COCO (AmsterCHEM)
Topic: Normal volume flow computation
Replies: 3
Views: 11409

Normal volume flow computation

Dear Jasper, I'm facing issues with the computation of the normal volume flow in my simulation. Indeed, the measured normal volume flow does not give the same value as the normal volume flow that I compute, using the total molar flow and the ideal gas law. It is especially obvious after a mixer, as ...
by spertant
20 February 2024, 14:44
Forum: COCO (AmsterCHEM)
Topic: COFE Flowsheet protection
Replies: 10
Views: 46953

Re: COFE Flowsheet protection

Hi Jasper,

Thank you for your help.
With the embedded flowsheet in Excel I'm on a good way to achieve my goal.
This topic : http://cape-open-forum.org/viewtopic.php?f=5&t=443
was particularly helpful to me to understand how to modify the flowsheet using excel.
by spertant
15 February 2024, 12:42
Forum: COCO (AmsterCHEM)
Topic: COFE Flowsheet protection
Replies: 10
Views: 46953

Re: COFE Flowsheet protection

Thank you for your answer. In fact I want to build a tool for non-technical people in my company. The aim is to have a user friendly tool and to prevent mistakes by preventing people from modifying the flowsheet. The best solution would be an excel file, where the user puts some input parameters (fe...
by spertant
15 February 2024, 11:46
Forum: COCO (AmsterCHEM)
Topic: COFE Flowsheet protection
Replies: 10
Views: 46953

COFE Flowsheet protection

Hello, I would like to protect a COFE Flowsheet, so that the users cannot modify the Flowsheet (modify feed values and unit operations parameters, plug-unplug streams...). Is there a way to do so ? Alternatively (it would be even better) I was thinking to put my Flowsheet in a COFE Flowsheet Unit Op...

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