Search found 7 matches

by antoinetonee
30 November 2022, 06:50
Forum: COCO (AmsterCHEM)
Topic: Heterogeneous Reaction PFR Bug
Replies: 2
Views: 21536

Re: Heterogeneous Reaction PFR Bug

Apologies for the very late response. Thanks for the answer, I've also found and fixed the faulty rate equation.
by antoinetonee
31 October 2022, 07:05
Forum: COCO (AmsterCHEM)
Topic: Heterogeneous Reaction PFR Bug
Replies: 2
Views: 21536

Heterogeneous Reaction PFR Bug

Hi all, I'm encountering a persistent problem in the simulation of heterogeneous reaction in PFR. The simulation file is attached. Similar to that in a previous thread , I put max(0,X("component name")) to avoid the value in question from getting below zero. Instead, the simulation gives e...
by antoinetonee
21 October 2022, 00:16
Forum: MATLAB Unit Operation (AmsterCHEM)
Topic: Adding energy stream to customized unit (Matlab CAPE-OPEN)
Replies: 2
Views: 38927

Re: Adding energy stream to customized unit (Matlab CAPE-OPE

The Matlab CAPE-OPEN Unit Operation does not currently support energy streams. Are you planning on doing this in COCO/COFE? If not, which simulator will you use? Yes, I'll be planning to do it in COCO. If it doesn't support energy stream, is it possible to express the energy consumption of the unit...
by antoinetonee
17 October 2022, 02:40
Forum: MATLAB Unit Operation (AmsterCHEM)
Topic: Adding energy stream to customized unit (Matlab CAPE-OPEN)
Replies: 2
Views: 38927

Adding energy stream to customized unit (Matlab CAPE-OPEN)

Hello, I have been tinkering an idea of adding an energy stream to the customized separator unit in the COCO-Matlab CAPE-OPEN's Water-Ethanol membrane distillation model tutorial (illustration is given in figure below. The problem is that I checked out the manual of CAPE-OPEN and it doesn't include ...
by antoinetonee
18 November 2021, 03:18
Forum: COCO (AmsterCHEM)
Topic: Problem in simulating Heterogeneous Reactor
Replies: 7
Views: 34347

Re: Problem in simulating Heterogeneous Reactor

jasper wrote:that in fact makes all runs work:
Screenshot 2021-11-17 091411.png
Yeah now it's working. Thanks a lot!
by antoinetonee
17 November 2021, 04:30
Forum: COCO (AmsterCHEM)
Topic: Problem in simulating Heterogeneous Reactor
Replies: 7
Views: 34347

Re: Problem in simulating Heterogeneous Reactor

Re-checking your expression, it does go to zero in case X[nitric oxide] goes to zero - it is the only term in the numerator. The negative rate of nitric oxide however is within integration tolerance. Perhaps try the solution with max(0, ... ) to avoid the negative value. Thank you for the reply, Ja...
by antoinetonee
16 November 2021, 03:57
Forum: COCO (AmsterCHEM)
Topic: Problem in simulating Heterogeneous Reactor
Replies: 7
Views: 34347

Problem in simulating Heterogeneous Reactor

Hi all, I'm currently facing a problem in simulating heterogeneous reactor with user-defined reaction kinetic expression. The reactor converts NO, CO, and H2O into NH3 and N2, hence it has two reactions (namely NTA_NH3 and NTA_N2, respectively). My intention is to parametrize the dimension and inlet...

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