In this study, with the purpose of applying to the metal catalyst substrates, we have examined the feasibility of improving the light-off performance of a catalytic converter by enhancing heat transfer in the cells with heat-transfer promoters. Experimental and CFD analyses have been conducted to estimate heat transfer rates and pressure losses of the model cells with hemispherical protrusions. The analyses show that, by enhancing heat transfer of the cells, the cell density can be reduced keeping the catalytic performance in the steady state at the same level as that of conventional ones. As a result, the thermal mass of the substrate can be also reduced effectively without an increase of the pressure loss, and consequently the light-off performance of the catalytic converter can be improved noticeably.


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    Titel :

    Numerical and Experimental Study on Improvement of Thermal Performance of Cells in Metal Substrates for Catalytic Converters


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Nakayama, Hiroshi (Autor:in) / Asada, Ken (Autor:in) / Hirota, Masafumi (Autor:in) / Kasuya, Masayuki (Autor:in) / Konya, Shogo (Autor:in)

    Kongress:

    SAE 2005 World Congress & Exhibition ; 2005



    Erscheinungsdatum :

    2005-04-11




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    2005-01-1110 Numerical and Experimental Study on Improvement of Thermal Performance of Cells in Metal Substrates for Catalytic Converters

    Hirota, M. / Asada, K. / Nakayama, H. et al. | British Library Conference Proceedings | 2005


    Numerical analysis of thermal stress distribution in metal substrates for catalytic converters

    Konya,S. / Kasuya,M. / Okazaki,Y. et al. | Kraftfahrwesen | 2002


    Numerical Analysis of Thermal Stress Distribution in Metal Substrates for Catalytic Converters

    Imai, Atsuhiko / Kikuchi, Atsushi / Kasuya, Masayuki et al. | SAE Technical Papers | 2002


    Metal substrates for catalytic converters?

    GKN Technology,Wolverhampton,GB | Kraftfahrwesen | 1993