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-   -   Coal devolatilisation - two competing reactions (http://www.cfd-online.com/Forums/cfx/67338-coal-devolatilisation-two-competing-reactions.html)

gravis August 12, 2009 07:45

Coal devolatilisation - two competing reactions
 
Dear all,

I am looking for advice in describing devolatilisation of coal in CFX using two competing reactions. I have been told that the reactions need to be specified in a CEL code. Does anyone have a code example that shows how to set this up? Any other hints regarding this?

Best regards,
Reine

gravis February 16, 2010 11:01

Update
 
I have defined two reactions - Devolatilization RC1 and Devolatilization RC2 - and included them in the Multiphase Reactions List. I get the following message by the solver when running the simulation:

Parallel run: Received message from slave
-----------------------------------------
Slave partition : 8
Slave routine : SU_REAC_HCFUEL
Master location : End of Continuity Loop
Message label : 002100073
Message follows below - :
+--------------------------------------------------------------------+
| ****** Notice ****** |
| |
| For hydrocarbon fuel proximate/ultimate analysis, multiple |
| reactions of the same type found. Only one of these will be |
| effective for calculation of volatiles reference enthalpy. |
| |
| Particle : HC Fuel |
| Reaction type: devolatilisation |
| Reaction for volatiles heat release calculation: |
| Devolatilization RC2 |
+--------------------------------------------------------------------+


Has anyone seen a similar solver message?
Do you have any recommendations how to setup the simulation correctly in order for both reactions to be used?


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