The presented work evaluates several mixer designs being considered for use in large Diesel exhaust aftertreatment systems. The mixers are placed upstream of a diesel oxidation catalyst (DOC) in the exhaust system, where a liquid hydrocarbon fuel is injected. DOC exothermic behaviour resulting from each mixer at different operating conditions is evaluated. A gas flow bench equipped with a XY-Table measurement system is used to determine gas velocity, temperature, and hydrocarbon species uniformity, as well as, pressure drop. Experimental mixer data obtained from a flow bench and an engine dynamometer are compared and discussed. The experimental methodology used in this study can be used to evaluate mixers via comprehensive testing.


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    Title :

    Evaluation of Mixer Designs for Large Diesel Exhaust Aftertreatment Systems


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2010 Commercial Vehicle Engineering Congress ; 2010



    Publication date :

    2010-10-05




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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