A mathematical model was developed for predicting the concentration of exhaust nitric oxide, soot and other emissions in a direct injection diesel engine. In the model, it was emphasized to describe the phenomena occurring in the combustion chamber from the microscopic point of view. The prediction was based on the knowledges concerning a single droplet as well as the droplet size distribution in a fuel spray and the spatial and temporal distribution histories of fuel in a combustion chamber. The heterogeneous field of temperature and equivalence ratio, and uniform pressure in the cylinder were postulated. The heat release model gives the burning rate of injected fuel and pressure and temperature history in the cylinder. The concentration of nitric oxide and soot in the cylinder was predicted by the emission formation model. In order to confirm the validity of the theoretical analysis, the calculated results were compared with the experimental results for typical direct injection diesel engine.


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    Titel :

    Models for Combustion and Formation of Nitric Oxide and Soot in Direct Injection Diesel Engines


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Hiroyasu, H. (Autor:in) / Kadota, T. (Autor:in)

    Kongress:

    1976 Automotive Engineering Congress and Exposition ; 1976



    Erscheinungsdatum :

    1976-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Models for combustion and formation of nitric oxide and soot in direct injection diesel engines

    Hiroyasu,H. / Kadota,T. / Univ.of Hiroshima,JP | Kraftfahrwesen | 1976



    A multistage combustion model and soot formation model for direct-injection diesel engines

    Micklow,G.J. / Gong,W. / Univ.of North Carolina,US | Kraftfahrwesen | 2002



    Modeling of nitric oxide and soot formation in diesel engine combustion

    Mueller,E. / Zillmer,M. / Tech.Univ.Braunschweig,DE | Kraftfahrwesen | 1998