Numerical simulations are increasingly assisting research and development in the field of emission control of automotive vehicles. Our work focuses on the prediction of the tail-pipe emissions, based on a numerical simulation of the automotive catalytic converter. Besides the prediction of the tail-pipe emissions, an understanding of the processes occurring inside a monolithic catalytic converter implies new opportunities for the design of the optimum exhaust gas system. In this paper, we present a three-dimensional transient numerical study of the influence of the velocity distribution in front of the inlet face on the thermal behaviour of the monolith during the light-off of a 3-way catalytic converter. The differences in the thermal and chemical behaviour due to the shape of the velocity distribution are discussed. The recently developed code DETCHEM(Monolith)/1/ is used for the numerical simulation. This code, for the first time, combines two-dimensional simulations of the reactive flow inside a large number of single monolith channels including a heterogeneous multi-step reaction mechanism with a transient simulation of the three-dimensional temperature field of the entire converter.


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    Title :

    Impact of the inlet flow distribution on the light-off behavior of a 3-way catalytic converter


    Contributors:
    Windmann, J. (author) / Braun, J. (author) / Zacke, P. (author) / Tischer, S. (author) / Deutschmann, O. (author) / Warnatz, J. (author)


    Publication date :

    2003


    Size :

    11 Seiten, 22 Bilder, 2 Tabellen, 18 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Impact of the inlet flow distribution on the light-off behavior of a 3-way catalytic converter

    Windmann,J. / Braun,J. / Zacke,P. et al. | Automotive engineering | 2003


    Impact of the Inlet Flow Distribution on the Light-Off Behavior of a 3-Way Catalytic Converter

    Braun, Joachim / Windmann, Julia / Warnatz, Jürgen et al. | SAE Technical Papers | 2003


    2003-01-0937 Impact of the Inlet Flow Distribution on the Light-Off Behavior of a 3-Way Catalytic Converter

    Windmann, J. / Braun, J. / Zacke, P. et al. | British Library Conference Proceedings | 2003


    Modelling of flow distribution during catalytic converter light-off

    Tsinoglou,D.N. / Koltsakis,G.C. / Aristotle Univ.of Thessaloniki,GR | Automotive engineering | 2004


    Modelling of flow distribution during catalytic converter light-off

    Tsinoglou, Dimitrios N. | Online Contents | 2004