Abstract In this paper, flame front propagation during normal and abnormal combustion was investigated. Cycle-resolved flame emission imaging was applied in the combustion chamber of a port fuel injection-boosted spark ignition engine. The engine was fueled with a mixture of 90% iso-octane and 10% n-heptane by volume (Primary Reference Fuel 90: PRF90) and commercial gasoline. The combustion process was monitored from the flame kernel formation until the exhaust valves opened. Different phenomena associated with abnormal combustion were analyzed, including the fuel deposition burning. Moreover, the ignition surfaces and end-gas auto-ignitions were investigated in terms of timing, location and frequency of occurrence. The analysis was performed by considering different knocking intensities for both the selected fuels.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Experiments on knocking and abnormal combustion through optical diagnostics in a boosted spark ignition port fuel injection engine


    Contributors:
    Merola, S. S. (author) / Sementa, P. (author) / Tornatore, C. (author)

    Published in:

    Publication date :

    2011-02-01


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English