This paper develops an improved empirical autoignition model that includes the cool-flame phenomenon. It is calibrated for primary reference fuel (PRF) blends from 0 to 100 octane and also blends of methanol with 80 PRF. Methanol does not exhibit a cool-flame and hence the blends provide insight regarding the probable blending profile of multi-component gasolines and future synthetic fuels. The model was calibrated using ∼1500 detailed chemical kinetic simulations mapping a wide pressure, temperature and air-fuel ratio domain. Besides being a computationally elegant autoignition predictor for engine simulations, the model also provides a technically defensible structure for encapsulating experimental data from autoignition research devices such as rapid-compression machines.


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    Title :

    An Improved Empirical Model for Describing Auto-ignition


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    2008 SAE International Powertrains, Fuels and Lubricants Congress ; 2008



    Publication date :

    2008-06-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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