Isobutane autoignition chemistry was examined in a motored, single-cylinder engine by measuring stable intermediate species, performing heat release analyses, and measuring visible emissions. The engine was motored at speeds of 600 and 1600 r/min, and compression ratio was varied to affect different levels of chemical activity.At 1600 r/min, species measurements, heat release and visible emissions all exhibited a “negative-temperature” coefficient region; thus, “intermediate-temperature” chemistry controls autoignition at 1600 r/min. By implication, classic “low-temperature” chemistry controls at 600 r/min. Experimental measurements are compared with isobutane literature values, with previous n-butane results, and specific isobutane autoignition chemistry is discussed an light of the measurements.


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    Titel :

    The Autoignition Chemistry of Isobutane: A Motored Engine Study


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    1988 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1988



    Erscheinungsdatum :

    01.10.1988




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


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    A comparison of olefin and paraffin autoignition chemistries:a motored-engine study

    Leppard,W.R. / General Motors,US | Kraftfahrwesen | 1989