An analytical technique has been optimised for the measurement of the concentrations of diesel exhaust odorants. Application of this technique to combustion bomb studies shows that preflame reactions with diesel fuel produce high concentrations of odorants. The effects of engine variables on exhaust odorant concentrations are presented for direct and indirect injection engines. Analysis of these data shows that diesel exhaust odorants are produced from three sources: (a) the fuel-lean mixture produced during the ignition delay period, (b) fuel emptying from the nozzle sac volume of direct injection engines after injection, (c) a fuel-rich source which becomes significant at high load. The practical measures for control of odorants are outlined.


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    Title :

    Measurement of Diesel Exhaust Odorants and Effect of Engine Variables


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1980 Automotive Engineering Congress and Exposition ; 1980



    Publication date :

    1980-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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