The cyclic variation of initial flame-kernel growth were investigated in an optical stratified-charge spark ignition (SI) engine. In order to quantify the relative effects of flame-kernel growth rate, a zero dimensional flame-kernel growth model, in conjunction with a one-dimensional spark ignition model was employed. Flame images were acquired through either a pentroof window or the piston crown and these were to calculate the intracycle flame-kernel radius evolution. The effect of the residual-gas fraction was found to account for no more than 30 percent of the measured cyclic variability in flame-kernel radius.


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    Title :

    The relative effects of fuel concentration, residual-gas fraction, gas motion, spark energy and heat losses to the electrodes on flame-kernel development in a lean-burn spark ignition engine


    Additional title:

    Die relativen Auswirkungen von Brennstoffkonzentration, Abgasanteil, Gasströmung, Zündenergie und Wärmeverlusten an die Elektroden auf die Entwicklung des Flammenkerns in einem Magermischmotor


    Contributors:
    Aleiferis, P.G. (author) / Taylor, A.M.K.P. (author) / Ishii, K. (author) / Urata, Y. (author)


    Publication date :

    2004


    Size :

    15 Seiten, 51 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English