some doubt on Gibbs calculation on coco

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some doubt on Gibbs calculation on coco

Postby alemil » 28 June 2021, 11:39

Hello,
I have some doubt about the working of the Gibbs reactor. I see strange results in term of a combustion reaction of CH4/C2H6, I previously asked about it and it was fixed. Now I see again something that seems bad. In a calculation, using the same compositions used before and changing only the air/NG flows it works fine (I see it also from the expected outlet temperature, 900°C, that corresponds to the calculated), whereas by making some small change in air composition it provides a warning on the material balance, with outlet temperature apparently not correct). Thanks for support.
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combustion ok.fsd
file working
(36.74 KiB) Downloaded 244 times
combustion not ok.fsd
file not working
(34.7 KiB) Downloaded 252 times
alemil
 
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Re: some doubt on Gibbs calculation on coco

Postby jasper » 30 June 2021, 07:55

I see the problem as it appears in your file, but if I re-run, the solution is ok. Are you using COUSCOUS 3.5?
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Re: some doubt on Gibbs calculation on coco

Postby jasper » 13 July 2021, 07:55

Please confirm the issue is resolved?
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