The supercharged Diesel engine with direct injection is the thermal machine with the most favourable efficiency, i.e. the smallest specific primary energy consumption can be realised. Based on a global use of hydrogen in the future and the provision of a corresponding infrastructure as well as reduced production cost for hydrogen fuel, the life cycle consideration of the employment of such engines shows positive influences regarding world resources and environment. The combustion of hydrogen is free of CO2 exhaust and hydrogen production by electrolysis using current from, e.g. hydropower or photovoltaics, will completely avoid CO2 generation. Successful investigations on a 1-cylinder test engine confirmed the above potential when combining directly injected hydrogen and the self-igniting principle of the Diesel engine. Power densities of a mean effective pressure of almost 19 bar could be realised complying with the design potential of the original Diesel engine. In the case of a conceptual new design for a medium-speed Diesel engine for hydrogen operation, this combustion process will have the potential of realising a mean effective pressure of 25 bar and more, and the trade-off between emissions and efficiency will offer distinct advantages compared to fossil fuels. The project 'direct injection hydrogen Diesel engine of high power density and low exhaust gas emissions' is, world-wide, a first milestone for the future of internal combustion engines regarding exhaust gas emissions and power density.


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    Title :

    Realization of a direct injection hydrogen diesel engine with high power density


    Additional title:

    Entwicklung eines Wasserstoff-Dieselmotors mit Direkteinspritzung und hoher Leistungsdichte


    Contributors:
    Vogel, C. (author) / Prechtl, P. (author) / Mayinger, F. (author) / Zeilinger, K. (author) / Woschni, G. (author)


    Publication date :

    2000


    Size :

    10 Seiten, 10 Bilder, 8 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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