In this dissertation a two-zone thermodynamic model is implemented and combined with extended Zeldovich mechanism to calculate NOx from a gasoline direct injection engine. Furthermore, a chemical kinetic model has been combined with the two-zone model to predict the carbon monoxide emission. For a better CO prediction over the operating range of lambda from lean to rich mixture, a new zone has been introduced into the combustion chamber. This enables the integration of the thermal boundary layer into the emissions model. The mixture in this zone is oxidized at a lower temperature than the majority of the gas in the combustion chamber and therefore modelled with a reduced chemical mechanism.


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    Title :

    Thermodynamic based prediction model for NOx and CO emissions from a gasoline direct injection engine


    Contributors:

    Publication date :

    2007


    Size :

    Online-Ressource


    Remarks:

    graph. Darst.


    Type of media :

    Theses


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    BKL:    35.13 Reaktionskinetik / 52.35 Kolbenkraftmaschinen
    DDC:    620



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