The present study investigated HCCI combustion in a heavy-duty diesel engine both experimentally and numerically. The engine was equipped with a hollow-cone pressure-swirl injector using gasoline direct injection. Characteristics of HCCI combustion were obtained by very early injection with a heated intake charge. Experimental results showed an increase in NOx emission and a decrease in UHC as the injection timing was retarded. It was also found that optimization can be achieved by controlling the intake temperature together with the start-of-injection timing. The experiments were modeled by using an engine CFD code with detailed chemistry. The CHEMKIN code was implemented into KIVA-3V such that the chemistry and flow solutions were coupled. The model predicted ignition timing, cylinder pressure, and heat release rates reasonably well. The NOx emissions were found to increase as the injection timing was retarded, in agreement with experimental results. Computed CO and HC emissions trends were also in agreement with the measured data.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Experiments and CFD Modeling of Direct Injection Gasoline HCCI Engine Combustion


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Future Car Congress ; 2002



    Erscheinungsdatum :

    03.06.2002




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    HCCI combustion in direct injection diesel engine

    Hasegawa,R. / Yanagihara,H. / Toyota Motor,JP | Kraftfahrwesen | 2003