The change in the smoke emissions from a diesel engine with the shapes of the combustion chamber and the in-cylinder density was investigated with focuses on the mixing and the soot formation in a spray flame. First, the mixing of the fuel and air between the nozzle exit and the set-off length was used as an indicator for the formation of soot. Although this indicator can explain the influence of the density, it cannot explain the changes in the smoke emissions with a change in the shape of the combustion chamber. Next, by focusing on the soot distribution in a quasi-steady-state spray flame, the soot formed in the high-density condition of an optically accessible engine was investigated by applying two-color method. These results showed that the positional relationship between the maximum soot amount position and the flame impinging position can be a major influence on the smoke emissions.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Influence of Combustion Chamber Shape and In-Cylinder Density on Soot Formation in Diesel Combustion


    Additional title:

    Sae Int. J. Adv. and Curr. Prac. in Mobility


    Contributors:

    Conference:

    2019 JSAE/SAE Powertrains, Fuels and Lubricants ; 2019



    Publication date :

    2019-12-19


    Size :

    11 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Influence of Combustion Chamber Shape and In-Cylinder Density on Soot Formation in Diesel Combustion

    Funayama, Yoshihiro / Yoshitomi, Kazunori / Ishii, Mori et al. | British Library Conference Proceedings | 2019


    Formation of Soot Particulates in the Combustion Chamber of a Precombustion Chamber Type Diesel Engine

    Tosaka, Shigeru / Fukazawa, Shoichi / Murayama, Tadashi et al. | SAE Technical Papers | 1984


    Formation of Soot Particulates in the Combustion Chamber of a Precombustion Chamber Type Diesel Engine

    Fujiwara,Y. / Fukazawa,S. / Tosaka,S. et al. | Automotive engineering | 1984


    Soot Particulates Instantaneous Optical Measurements in a Diesel Combustion Chamber

    Ayachi, N. / Monteiro, L. / Parruite, R. et al. | British Library Conference Proceedings | 1992


    Measurement of instantaneous soot concentration in a Diesel combustion chamber

    Greeves,G. / Meehan,M. / CAV Lucas,GB | Automotive engineering | 1977