Experimental investigation of combustion processes in an optical DISI engine equipped with plasma-assisted ignition system English

  • Category Technical paper
  • Edition SIA
  • Date 12/04/2013
  • Author A. Irimescu - Politehnica University of Timisoara | L. Marchitto, S. S. Merola, C. Tornatore, G. Valentino - Istituto Motori di Napoli | S. Silva, A. Grimaldi - Eldor Corporation
  • Language English
  • Type PDF file (814.3 Ko)
    (Downloadable immediately on receipt of online payment)
  • Number of pages 8
  • Code R-2013-06-15
  • Fee from 8.00 € to 10.00 €

Currently, direct injection for gasoline engines is a primary trend for improving the efficiency allowing to reduce fuel consumption and meet stringent emission standards. A large temporal and spatial variation of mixture composition near the spark location during low speed and high load operation are driving the demands for significantly improved ignition systems. Recently, plasma-assisted ignition systems received increasing interest, they are used for combustion initiation and control and show the potential for flame stabilization. The aim of this paper is to improve the understanding of the processes related to the use of a plasma-assisted ignition system and its influence on combustion development.
Experiments were performed in an optical SI engine equipped with the cylinder head and injection system of a commercial SI turbocharged engine. The effect of the spark plug geometry and of the plasma configurations were investigated. UV-visible digital imaging was applied. The optical data were correlated to in-cylinder pressure-based data and exhaust emission measurements.
Significantly higher stability, quantified through the coefficients of variation of IMEP and of flame radius, was obtained using the alternative ignition system. An improvement in engine performance and pollutant emissions was achieved.

Order

Conference proceedings and magazines are sent by post contrary to the PDF files, which can be downloaded as soon as the payment is completed.
They can't be ordered in the same shopping cart.

Select your fee

INGENIEURS DE L'AUTO SE DIGITALISE

 

 

La revue Ingénieurs de l’Auto est maintenant diffusée en print et on line. Une grande première pour la SIA avec ce numéro 865, disponible au format numérique.

Cette version digitale sera, à chaque numéro, réservée aux membres de la SIA abonnés.

Exceptionnellement pour ce premier numéro on line, et en lien avec la situation de confinement et de télétravail de beaucoup d’ingénieurs de notre industrie, la version digitale du numéro de Mai est accessible à tous.

 

DÉCOUVRIR LA REVUE