The heat release characteristics in terms of the maximum pressure rise rate (MPRR) and combustion phasing in a partially premixed compression ignition (PPCI) engine are studied using a calibration gasoline. Early port fuel injection provides a nearly homogeneous charge, into which a secondary fuel pulse is added via direct injection (DI) to provide stratification which is affected by the timing of the start of injection (SOI). As the SOI the DI fuel is retarded from early compression, MPRR first decreases, then increases substantially, and decreases again. The MPRR correlates mostly with the combustion phasing. The SOI timing plays an indirect role. The observation is explained by a bulk heat release process of which the rate increases with temperature rather than by a sequential ignition process. Observations from compression ignition of representative homogeneous charges in a Rapid Compression Machine support this explanation.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The Nature of Heat Release in Gasoline PPCI Engines


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Maria, Amir (Autor:in) / Cheng, Wai K. (Autor:in) / Sang, Wenwen (Autor:in)

    Kongress:

    SAE 2014 World Congress & Exhibition ; 2014



    Erscheinungsdatum :

    01.04.2014




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    The Nature of Heat Release in Gasoline PPCI Engines

    Sang, W. / Cheng, W.K. / Maria, A. et al. | British Library Conference Proceedings | 2014



    Combustion and Emission Characteristics of a PPCI Engine Fuelled with Dieseline

    Zhang, F. / Xu, H. / Rezaei, S.Z. et al. | British Library Conference Proceedings | 2012


    Combustion and Emission Characteristics of a PPCI Engine Fuelled with Dieseline

    Zhang, Fan / Kalghatgi, Gautam / Xu, Hongming et al. | SAE Technical Papers | 2012


    Gasoline Engines

    Kimbara, Y. | British Library Online Contents | 1998