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-   -   COPROX Problem with Hydrogen Oxidation (http://www.cfd-online.com/Forums/fluent/81197-coprox-problem-hydrogen-oxidation.html)

elmcmaster October 19, 2010 10:54

COPROX Problem with Hydrogen Oxidation
 
Hi all, i am doing preferential oxidation of CO along with some oxidation of Hydrogen which is in the feed.

I get massive temperature errors.

When i do the CO oxidation by itself, things work fine, but when i do the Hydrogen oxidation, either with CO or without, there is a massive temperature increase, beyond the limit of the solver, which is set at 5000K. I have read that the adiabatic flame temperature of hydrogen oxidation is around 3400K so why would there be this problem?

The feed only contains 0.5% m.f. oxygen.

Any ideas welcome :)

Thanks Michael


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