A single-stage dilution system has been designed to simulate the process of engine exhaust dilution in the atmosphere. An exhaust sample stream is introduced into a partial flow tunnel where it is diluted at a controlled rate. Temperature, relative humidity, dilution ratio and rate, and residence time are all adjustable. The system includes a turbulence generator to adjust the intensity of turbulence in the tunnel and a wake disk to control the initial mixing rate.Numerical methods were used to simulate flow fields, velocity fields, and mixing profiles for gases and particles. Mixing profiles for a gaseous tracer and particles of different sizes were also determined experimentally and compared with the model predictions. Critical parameters that influence mixing profiles and dilution rates predicted by modeling were demonstrated experimentally. Predicted and measured normalized mixing profiles were found to be in good agreement.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Single-Stage Dilution Tunnel Design


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE 2001 World Congress ; 2001



    Erscheinungsdatum :

    2001-03-05




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Single-stage dilution tunnel design

    Wei,Q. / Kittelson,D.B. / Watts,W.F. et al. | Kraftfahrwesen | 2001


    Single-Stage Dilution Tunnel Performance

    Kittelson, David B. / Wei, Qiang / Watts, Winthrop F. | SAE Technical Papers | 2001


    Single-stage dilution tunnel performance

    Wei,Q. / Kittelson,D.B. / Watts,W.F. et al. | Kraftfahrwesen | 2001


    2001-01-0207 Single-Stage Dilution Tunnel Design

    Wei, Q. / Kittelson, D. B. / Watts, W. F. et al. | British Library Conference Proceedings | 2001


    2001-01-0201 Single-Stage Dilution Tunnel Performance

    Wei, Q. / Kittelson, D. B. / Watts, W. F. et al. | British Library Conference Proceedings | 2001