Effect of fuel on the regulated, unregulated and mutagenic emissions of DI diesel engines

Leena Rantanen, Seppo Mikkonen, Lars Nylund, Pirkko Kociba, Maija Lappi, Nils-Olof Nylund

    Research output: Book/ReportReport

    33 Citations (Scopus)


    Emissions of heavy duty engines using hydrocarbon fuels and rape seed methyl ester (RME) were measured according to the ECE R49 test procedure. The effect of fuel density on engine power was taken into account in the ECE R49 tests. The two reformulated fuels tested had sulphur below 50 ppm, aromatics below 20 vol-%, cetane number over 49 and reduced triaromatic content. Particulates were measured in a AVL Mini Dilution Tunnel 474 and gaseous unregulated hydrocarbons by Siemens FTIR. Reformulation reduced NOx by 5 to 12 %, particulates by 10 to 25 % and Ames mutagenicity by 56 to 74 %. RME increased NOx by 4 to 9 %, reduced particulates by 0 to 33 % and the mutagenicity by 17 %.
    Cetane number was found to be not important in reducing emissions. Low fuel triaromatic and low particulate PAH content reduced the mutagenicity of particulates.
    Original languageEnglish
    Place of PublicationWarrendale
    PublisherSociety of Automotive Engineers SAE
    Number of pages17
    Publication statusPublished - 1993
    MoE publication typeD4 Published development or research report or study
    Event1993 SAE International Fuels and Lubricants Meeting and Exposition - Philadelphia, United States
    Duration: 18 Oct 199321 Oct 1993

    Publication series

    SeriesSAE Technical Paper Series


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