The study relates air/fuel ratio, fuel injection timing, and engine speed to exhaust smoke levels and performance of the diesel engine. Additional data were obtained under supercharged and turbocharged inlet air conditions to investigate the applicability of the derived relationships under these conditions. Limited data using a variance in fuel type were obtained.Insight into the basic mechanism of smoke formation in diesel engines was gained. The relative percentages of fuel injected before ignition (i.e., premixed fuel) and after initiation of combustion (i.e., unmixed diffusion burning fuel) were found to be extremely significant in determining smoke levels. A smoke factor (the ratio of equivalence ratio in the combustion chamber at initial ignition to overall equivalence ratio) was formulated and found to be useful in predicting smoke phenomena in diesel engines.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Relationships Between Exhaust Smoke Emissions and Operating Variables in Diesel Engines


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1977 SAE International Off-Highway and Powerplant Congress and Exposition ; 1977



    Publication date :

    1977-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    SMOKE EMISSIONS FROM MEDIUM-SPEED DIESEL ENGINES

    Mikedis, I. K. / Koehler, H. W. / Motor Ship Magazine | British Library Conference Proceedings | 2001


    Diagnostics of Diesel Engines Using Exhaust Smoke and Temperature

    Benson, H. S. / Hambright, Robert N. | SAE Technical Papers | 1976


    Diagnostics of Diesel engines using exhaust smoke and temperature

    Hambright, R. / Benson, H. | Tema Archive | 1976


    Diagnostics of Diesel Engines Using Exhaust Smoke and Temperature

    Hambright,R.N. / Benson,H.S. / Southwest Res.Inst.,US | Automotive engineering | 1976


    Relationships among engine variables, exhaust gas emissions and fuel economy in gasoline engines

    Saito,A. / Koga,K. / Kaneko,Y. et al. | Automotive engineering | 1978