In this study, experimental results of homogeneous charge compression ignition HCCI of n-butane in a single shot machine are presented. N-butane measurements are compared with a multizone model. Individual zones are calculated using a perfectly stirred reactor and Chemkin chemistry. The influence of temperature before combustion on heat release rate and duration of combustion is shown in a sensitivity analysis. As a perfect homogeneous temperature and fuel distribution are difficult to establish under experimental conditions, deviations from perfect homogeneity are shown. The influence of a hot surface in the cylinder head in terms of heat release rate and ignitability is examined. Further, dual fuel injections of n-butane and diesel are studied to trigger the n-butane ignition with a defined start of combustion.


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    Title :

    Experimental investigations using a transparent single shot compression machine for HCCI - combustion


    Additional title:

    Sae Technical Papers


    Contributors:
    Escher, A. (author) / Boulouchos, K. (author) / Kirchen, P. (author)

    Conference:

    8th International Conference on Engines for Automobiles ; 2007



    Publication date :

    2007-09-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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