Augmented reduced mechanisms for NO emission in methane oxidation

摘要: Abstract A previously derived 12-step, 16-species augmented reduced mechanism (ARM), based on GRI-Mech 1.2, was shown to be comprehensive for methane oxidation at the levels of global response as well detailed flame structure. The present study updates and extends this effort by basing reduction recently released 3.0 including description NOx formation. Specifically, assuming all nitrogen-containing species (except N 2 ) are in steady state, an equivalent 12-step ARM developed. Subsequently, a 14-step 15-step ARMs were account NO is basically plus two more steps that respectively describe thermal, prompt, nitrous oxide mechanisms, prompt mechanism. Further inclusion NH 3 -related reactions yielded ARM. 17-step also developed additional emissions nitrogen dioxide oxide. It that, such optimum numbers non-steady-state intermediates various mechanisms exhibit good excellent performance predicting wide range combustion phenomena under extensive thermodynamic parametric variations.