Performance evaluation of alternative fuel/engine concepts 1990-1995: Final report including addendum of diesel vehicles

Nils-Olof Nylund, Markku Ikonen, Matti Kytö, Maija Lappi, Mårten Westerholm, Juhani Laurikko

    Research output: Book/ReportReport


    Annex V within the IEA Agreement on Alternative Motor Fuels is the first subtask to generate new experimental data. The objective of the task is to generate information on the emission potential of alternative fuels in severe operating conditions and to evaluate new emission measurement methods. The work was carried out in three phases, Engine Tests, Vehicle Tests and Addendum of Diesel Vehicles. The work was carried out at VTT (Technical Research Centre of Finland) as a cost shared operation. Participants were Belgium (Parts Two and Three), Canada (Parts One and Two), Finland, Italy (Part One), Japan, the Netherlands, Sweden and USA. The United Kingdom also joined at the end of the Annex. The work included 143 different vehicle/fuel/temperature combinations. FTP type emission tests were run on 14 vehicles powered with different gasoline compositions, methanol (M50 and M85), ethanol (E85), LPG, CNG and diesel. Both regulated and unregulated emission components were measured using the most up-to-date emissions measurement technology. The results indicated, that today's advanced gasoline vehicles must be considered rather clean. Diesel is comparable with gasoline in the case of CO and HC. M85 gives low emissions in warm conditions, but unburned methanol must be controlled. Natural gas and LPG are inherently clean fuels which, using up-to-date engine technology, give low emissions in all conditions.
    Original languageEnglish
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Number of pages142
    ISBN (Print)951-38-4929-5
    Publication statusPublished - 1996
    MoE publication typeNot Eligible

    Publication series

    SeriesVTT Publications


    • fuels
    • substitutes
    • utilization
    • energy
    • performance
    • evaluation
    • motors
    • diesel engines
    • vehicles
    • tests
    • emissions
    • exhaust gases
    • measurement


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