Emission intensity was measured at a wavelength of 395 2 nm (corresponding to the characteristic spectrum of the HCHO radical) and absorbance was measured at 306 4 nm (corresponding to that of the OH radical). The emission intensity and absorbance waveforms recorded during engine operation on n-heptane show behavior indicative of the passage and degeneracy of cool flame in the preflame reaction interval. As the combustion chamber wall temperature approached an overheated state in the transition from normal combustion to knocking operation different preflame reaction behavior was observed which is thought to correspond to the presence of a negative temperature coefficient region related to the ignition delay time.


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    Titel :

    Spectroscopic Measurement of Radical Behavior Under Knocking Operation, 1996


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Saima, Atsushi (Autor:in) / Shoji, Hideo (Autor:in) / Yoshida, Koji (Autor:in) / Shimizu, Tomohiro (Autor:in) / Nishizawa, Toru (Autor:in)

    Kongress:

    1996 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1996



    Erscheinungsdatum :

    1996-10-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Spectroscopic Measurement of Radical Behavior Under Knocking Operation, 1995

    Saima, Atsushi / Shoji, Hideo / Yoshida, Koji et al. | SAE Technical Papers | 1995


    Emission Spectroscopic Analysis of Radical Behavior Causing Engine Knocking

    Ohata, E. / Higashizawa, S. / Yoshida, K. et al. | British Library Online Contents | 1996


    Radical Behavior in Preflame Reactions Under Knocking Operation in a Spark Ignition Engine

    Saima, Atsushi / Shoji, Hideo / Yoshida, Koji et al. | SAE Technical Papers | 1994



    Simultaneous Measurement of Light Emission and Absorption Behavior of Unburned Gas During Knocking Operation

    Saima, Atsushi / Shoji, Hideo / Shiino, Kazuyuki | SAE Technical Papers | 1993