Combustion Modeling of Internal combustion engines is still a complex matter, requiring further developments to better simulate the performance and emissions of different fuels. In order to study the influence of gasoline-ethanol blends on a Flex-Fuel engine, a computer model was designed to simulate the experimental conditions using Fractal combustion and Woschni based heat transfer models. The simulations were validated with engine dynamometer experimental tests. In-cylinder maximum pressure, IMEP and emissions data were calculated for different gasoline-hydrous ethanol blends at different engine conditions. The computer model presented a predictive behavior and a good agreement with experimental data for in-cylinder maximum pressure and IMEP. Regarding emissions, the simulations of some pollutants could not match precisely the experimental data, showing the need for additional combustion modeling improvements.


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    Title :

    Using Fractal Modeling to Predict Flex-Fuel Engine Combustion Process with Different Gasoline-Ethanol Blends


    Additional title:

    Sae Technical Papers



    Conference:

    23rd SAE Brasil International Congress and Display ; 2014



    Publication date :

    2014-09-30




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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