A simulation model of catalyzed diesel particulate filter (CDPF) is established based on the CFD software FIRE and has been validated through a series of experimental comparison. This model simulates the CDPF continuous regeneration process, and the factors that influence the exhaust NO2 concentration from CDPF including oxygen concentration, exhaust temperature, space velocity, proportion of NO2/NOX and soot mass fraction are studied. The results show that the higher oxygen concentration causes an increase in NO2/NOX. The NO2/NOX is significantly increased when the exhaust temperature is about 350 °C based on the simulation conditions when the inlet oxygen concentration is at 5.79% and the space velocity is 7s−1. The space velocity in a certain degree leads to higher NO2/NOX. For the soot mass, there is no significant influence of increasing proportion of the NO2/NOX.


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    Titel :

    The NO2 Emission Characteristics of Catalyzed Diesel Particulate Filter Regeneration


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    He, Chao (Autor:in) / Li, Jiaqiang (Autor:in) / Ma, Rong (Autor:in)

    Kongress:

    SAE 2014 International Powertrain, Fuels & Lubricants Meeting ; 2014



    Erscheinungsdatum :

    13.10.2014




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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