Alternative fuels with heavy-duty engines and vehicles: VTT's contribution

Timo Murtonen, Päivi Aakko-Saksa

    Research output: Book/ReportReport


    The report at hand is documentation of the results from VTT on emissions and performance of heavy-duty engines and vehicles using hydrotreated vegetable oil, ester-type biodiesel, GTL diesel, CNG and selected blends in reference to fossil diesel fuel. Report combines result form three different projects which are closely related to each other. Three engines and five city buses were used for the study. In addition, the efficiency of diesel oxidation catalyst combined to particle oxidation catalyst (POCr) was measured with two engines and a long term test was performed with diesel oxidation catalyst using EN590 and RME fuels. Extensive exhaust gas emission measurements were carried out over the measurement periods. In addition to regulated emissions (HC, CO, NO, PM) a number of unregulated emission compounds were measured and analyzed e.g. CO2, aldehydes, particle size distribution and total number, polyaromatic hydrocarbons, mutagenicity of particles and several gaseous compounds with FTIR. Results show that in most cases all regulated emissions decrease with HVO, GTL and RME fuels compared to conventional EN590 diesel fuel. Alternative fuels have also a positive effect on emissions, which are considered harmful to human health. The selected results of the whole study are presented in this paper.
    Original languageEnglish
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Number of pages126
    ISBN (Electronic)978-951-38-7188-8
    Publication statusPublished - 2009
    MoE publication typeNot Eligible

    Publication series

    SeriesVTT Working Papers


    • biodiesel
    • NExBTL
    • GTL
    • FAME
    • exhaust emissions
    • CO
    • HC
    • NOX
    • PM
    • particles
    • aldehydes
    • anions
    • PAH
    • Ames


    Dive into the research topics of 'Alternative fuels with heavy-duty engines and vehicles: VTT's contribution'. Together they form a unique fingerprint.

    Cite this