An experimental study was carried out on visualization of liquid phase temperature distributions in high-pressure diesel sprays impinging on a heated wall. Naphthalene/TMPD-exciplex fluorescence method and pyrene-excimer fluorescence method were utilized for the thermometry. The sprays were injected into a high-pressure and high-temperature gaseous environment. The nozzle hole diameter was 0.100 mm or 0.139 mm. The results showed that cool pockets were formed at the tip and in the impinging part of the sprays. The spray for the nozzle with 0.100 mm hole was heated up faster near the nozzle than for the nozzle with 0.139 mm hole.


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    Title :

    Liquid Phase Thermometry of Common Rail Diesel Sprays Impinging on a Heated Wall


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    JSAE/SAE International Fuels & Lubricants Meeting ; 2007



    Publication date :

    2007-07-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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