Learning Forum

[d.amadi]

I try to replicate this but it tend to give me 100% CO2 capture which ought not to be so. I kindly seek guidance on the ansys fluent step by step set up for this case especially the reaction model.

[Rob]

The Fluent solver has a reaction mechanism so will convert species based on the flow and chemistry that's set. If you're running a multiphase reaction scheme are the formation enthalpies appropriate for each phase? Ie have you accounted for phase change in the species enthalpy values?

[d.amadi]

For the work and from the slide, they did not account for species enthalpy for the species. They account for solid volume fraction for the case. he is the rates of reaction. My question is tthat I get 100% CO2 capture which ought not to be so

[Rob]

Why shouldn't you get 100% conversion? If residence time is sufficient and mixing is good there's no reason not to get full conversion. 

[d.amadi]

the standard state of enthalpy H2O = -2.418e+08 J/kgmol

the standard state of enthalpy CO2 = -3.935e+08 J/kgmol

the standard state of enthalpy N2 = 0 J/kgmol

 

[d.amadi]

From other simulation results, including that of the one from Ansys presentation, they are getting 59.2%

[Rob]

What about the potassium compounds?