A computer model is developed to predict engine performance and exhaust emissions in a spark-ignition engine. In the model, combustion phenomenon is analyzed by the turbulent combustion model which considers the effect of the turbulence and the combustion chamber on combustion. The gas exchange process is calculated by one dimensional isentropic flow through a nozzle. During combustion, 13 products are obtained by chemical equilibrium, and nitric oxide (NO) formation is calculated by the extended Zeldovich mechanism. The results of the computer model are compared with the experimental results. The calculated values for pressure and NO emission show good agreement “with the experimental data. The effects of the engine speed, spark timing, air fuel ratio, and EGR are studied by the model.


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    Title :

    Cycle Simulation for a Spark Ignition Engine Using a Turbylent Combustion Model


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1987 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1987



    Publication date :

    1987-11-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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