Modern engines are intended to work at high efficiency and at the same time have low emissions. Since modern engines operate with nearly stoichiometric air/fuel mixtures to reduce nitrogen oxides, one of the most critical emissions is carbon monoxide and its prediction is therefore essential for today's engine design. The concept of the presented model is to combine the two-zone thermodynamic model and CHEMKIN software to predict the carbon monoxide emissions from a gasoline direct injection engine with good computational efficiency and low calculation time. The model calculation was divided into two parts. The first part is the two-zone model which can also predict the CO concentration for the exhaust condition by using the chemical equilibrium concentration. The second part is the kinetic model, which uses input data from the two-zone model and starts the calculation shortly before the end of combustion. The model was validated by experimental data from a gasoline direct injection 1.6 liter engine. The results show satisfactory CO-predictions.


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    Title :

    Prediction of CO Emissions from a Gasoline Direct Injection Engine Using CHEMKIN®


    Additional title:

    Sae Technical Papers



    Conference:

    Powertrain & Fluid Systems Conference and Exhibition ; 2006



    Publication date :

    2006-10-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Prediction of CO emissions from a gasoline direct injection engine using CHEMKIN

    Chindaprasert,N. / Hassel,E. / Nocke,J. et al. | Automotive engineering | 2006



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