The characteristics of exhausted smoke of a methanol DI diesel engine which is ignited by diesel fuel are investigated to clarify the soot formation process. At this engine, very little smoke is exhausted when diesel fuel is kept below a certain amount, so soot and smoke emitting characteristics are studied under the various diesel fuel amounts.By analyzing microstructure of soot, it is found that the soot emitted from the methanol diesel engine is composed of inner core and outer shell, similar to that of the conventional diesel engines. From more detailed qualitative analysis, the calcium percentage from the lubricating oil in outer shell is much higher than that of the conventional diesel engines. In consideration of soot characteristics, spray structure and combustion characteristics, the soot formation process of the methanol diesel engine was clarified. Furthermore, it has become apparent that, in order to reduce soot in the cylinder of engine, oxidizing of the inner core of soot, before the complete soot is formed, is important.The exhausted emissions from the diesel engines for vehicles are becoming one of the urgent subjects to be solved. Especially, smokeless diesel is strongly demanded for the heavy traffic conditions. To reduce smoke drastically, the basic researches on the soot emitted from the diesel engines had been carried out and reported about the soot formation process. (1), (2) and (3) However, most of investigations are discussed from the view points of physicochemical reactions, and few investigated by soot structure analysis. On the other hand, it is known that the major part of soot is an insoluble substance with high carbon density and its shape is very refined. Therefore it is considered that the structure analysis of carbon solid refined particle contributes to the clarification of soot formation and growth process. From this point of view, the investigation by electron microscope, which enables nano order atomic structure and element analysis, is essential. As a basic research to reduce soot emitted from the diesel engines, authors have investigated the soot from direct and indirect injection diesel engines. (4) (5) In these investigations, soot formation and growth process were discussed in relation of combustion condition and physicochemical properties of the soot.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Study of Soot Formation Processes in a Dual Fueled Compression Ignition Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Fuels & Lubricants Meeting & Exposition ; 1992



    Publication date :

    1992-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    A study of soot formation processes in a dual fueled compression ignition engine

    Kawaguchi,A. / Sato,Y. / Yanagihara,H. et al. | Automotive engineering | 1992


    Complete Vegetable Oil Fueled Dual Fuel Compression Ignition Engine

    Ramesh, A. / Nagalingam, B. / Kumar, M. Senthil | SAE Technical Papers | 2001


    Hydrogen Fueled Homogeneous Charge Compression Ignition Engine

    Bika, Anil Singh / Kittelson, David / Acevedo, Helmer et al. | SAE Technical Papers | 2011


    Hydrogen Fueled Homogeneous Charge Compression Ignition Engine

    Bika, A.S. / Franklin, L. / Acevedo, H. et al. | British Library Conference Proceedings | 2011


    Dual fuel injection nozzle for methanol fueled compression ignition engine operation

    Ryan, T.W. / Callahan, T.J. / Ingoni, A.C. | Tema Archive | 1991