Diesel engine emissions

Autor/autori: Adrian SABAU, Darie TUDOR, Feiza MEMET

Rezumat: This paper describes the extension of the computer code make by author [1] to simulate nitric oxide formation. Complex kinetic mechanisms are applicable only for simple flame computations (e.g. one dimensional, laminar, etc.). For real turbulent flame calculations, their use is impractical, due to the complexity of the interacting processes (turbulence, radiation, heat transfer, etc.) which must be considered to obtain realistic results. A model derived by systematic reduction of multi-step chemistry is used in for the evaluation of the nitric oxide formation. This reduction is based on the partial equilibrium assumption of the considered elementary reactions using the extended Zeldovich mechanism describing the thermal nitrous oxide formation.

Cuvinte cheie: NOx, Zeldovich, mechanism, stoichiometric, flame