The effect of spray–flat-wall interaction on the diesel combustion characteristics in a constant-volume vessel was investigated. A flat wall was fixed perpendicular to the nozzle hole axis. Three injection pressures of 100 MPa, 150 MPa and 200 MPa and a single nozzle hole with a diameter of 0.133 mm were employed. Mie scattering was adopted to detect the spray formation process; OH* chemiluminescence and natural colour luminosity were conducted to analyse the combustion process. The two-colour method was applied to calculate the soot emissions and the temperature distribution. The results reveal that, in comparison with a free spray flame, flat-wall impingement causes diesel combustion to deteriorate when the liquid phase–wall interaction occurs; however, when an appropriate impinging distance (longer than liquid-phase penetration) is selected, combustion is observed to be enhanced. As for the impinging spray flame, when the injection pressure is increased, soot formation decreases; however, combustion is not linearly enhanced by increasing the injection pressure, and the OH* chemiluminescence intensity achieves the highest value with an injection pressure of 150 MPa.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effect of flat-wall impingement on diesel spray combustion


    Beteiligte:
    Li, Kuichun (Autor:in) / Nishida, Keiya (Autor:in) / Ogata, Youichi (Autor:in) / Shi, Baolu (Autor:in)


    Erscheinungsdatum :

    2015-04-01


    Format / Umfang :

    15 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Effect of flat-wall impingement on diesel spray combustion

    Li,K. / Nishida,K. / Ogata,Y. et al. | Kraftfahrwesen | 2015



    Modeling of Diesel Spray Impingement on a Flat Wall

    Fujimoto, Hajime / Kobayashi, Masaaki / Iwashita, Seiji et al. | SAE Technical Papers | 1994


    Fuel Injection Spray and Combustion Chamber Wall Impingement in Large Bore Diesel Engines

    Farrell, Patrick V. / Borthwick, R. Paul | SAE Technical Papers | 2002


    Fuel injection spray and combustion chamber wall impingement in large bore diesel engines

    Borthwick,R.P. / Farrell,P.V. / Teledyne,US et al. | Kraftfahrwesen | 2002