A constant volume combustion simulation has been used to compute the ignition delays of pure fuels and binary fuel mixtures in air. Minima in the ignition delays were predicted by a comprehensive chemical kinetic mechanism for binary fuel mixtures with methane. A model has been developed to predict the occurrence of autoignition in a spark ignited engine. Experimental pressure data from a CFR engine were used in the model to simulate the temperature-pressure history of the end gas and to determine the time when autoignition occurred. Comprehensive chemical kinetic mechanisms were used to predict the reactions in the end gas. Methanol, methane, ethane, ethylene, propane and n-butane were used as fuels. The initial temperatures in the model were adjusted to give agreement between predicted and observed autoignition. Engine data for methane-ethane mixtures indicated a problem with the kinetic mechanism.


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    Title :

    The Prediction of Auto Ignition in a Spark-Ignited Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1984 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1984



    Publication date :

    1984-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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