A mixed flow turbine with pivoting nozzle vanes was designed and tested to actively adapt to the pulsating exhaust flow. The turbine was tested at equivalent speed of 48000 rpm with inlet flow pulsation of 40Hz and 60Hz, which corresponds to a 4-stroke diesel engine speed of 1600 rpm and 2400 rpm respectively. The nozzle vane operating schedules for each pulse period are evaluated experimentally in two general modes; natural opening and closing of the vanes due to the pulsating flow and the forced sinusoidal oscillation of the vanes to match the incoming pulsating flow. The turbine energy extraction as well as efficiency is compared for the two modes to formulate its effectiveness.


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    Titel :

    Improving Energy Extraction from Pulsating Exhaust Flow by Active Operation of a Turbocharger Turbine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE World Congress & Exhibition ; 2007



    Erscheinungsdatum :

    2007-04-16




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Improving energy extraction from pulsating exhaust flow by active operation of a turbocharger turbine

    Rajoo,S. / Martinez-Botas,R.F. / Imperial College,GB | Kraftfahrwesen | 2007


    Improving Energy Extraction from Pulsating Exhaust Flow by Active Operation of a Turbocharger Turbine

    Rajoo, S. / Martinez-Botas, R. F. / Society of Automotive Engineers | British Library Conference Proceedings | 2007


    Simulation of pulsating flow unsteady operation of a turbocharger radial turbine

    Macek,J. / Vitek,O. / Czech Tech.Univ.,CZ | Kraftfahrwesen | 2008


    Simulation of Pulsating Flow Unsteady Operation of a Turbocharger Radial Turbine

    Macek, Jan / Vítek, Oldřich | SAE Technical Papers | 2008


    Simulation of Pulsating Flow Unsteady Operation of a Turbocharger Radial Turbine

    Macek, J. / Vitek, O. / Society of Automotive Engineers | British Library Conference Proceedings | 2008