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15.7 Setting Up the Equilibrium Chemistry Model

In the equilibrium chemistry model, the concentrations of species of interest are determined from the mixture fraction using the assumption of chemical equilibrium (see Section  15.2.1). With this model, you can include the effects of intermediate species and dissociation reactions, producing more realistic predictions of flame temperatures than the Eddy-Dissipation model. When you choose the equilibrium chemistry option, you will have the opportunity to use the rich flammability limit (RFL) option.

To enable the equilibrium chemistry model

1.   Select Non-Premixed Combustion in the Species Model panel.

2.   Enable Create Table under PDF Options.

3.   Select Equilibrium in the Chemistry tab of the Species Model panel.

Figure 15.7.1: The Species Model Panel ( Chemistry Tab)

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