By mixing iso-octane with octane number 100 and normal heptane with octane number 0, it was possible to obtain a PRF fuel with octane rating between 0 and 100. The influence of PRF fuel’s octane number on the combustion characteristics, performance and emissions character of homogeneous charge compression ignition (HCCI) engine was investigated. The experiments were carried out in a single cylinder direct injection diesel engine. The test results show that, with the increase of the octane number, the ignition timing delayed, the combustion rate decreased, and the cylinder pressure decreased. The HCCI combustion can be controlled and then extending the HCCI operating range by burning different octane number fuel at different engine mode, which engine burns low octane number fuel at low load mode and large octane number fuel at large load mode. There exists an optimum octane number that achieves the highest indicated thermal efficiency at different engine load. With the increase of the PRF fuel octane number, NOx, HC and CO emissions increased, especially for HC emissions.


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    Titel :

    The Effect of PRF Fuel Octane Number on HCCI Operation


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Zhang, Bo (Autor:in) / Yao, Mingfa (Autor:in) / Chen, Zheng (Autor:in) / Zheng, Zunqing (Autor:in)

    Kongress:

    2004 Powertrain & Fluid Systems Conference & Exhibition ; 2004



    Erscheinungsdatum :

    25.10.2004




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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