Influence of the repetition rate of a nanosecond pulsed discharge on the stabilization of a turbulent lean premixed flame

G. Pilla*, D. Galley, D. A. Lacoste, F. Lacas, D. Veynante, C. O. Laux

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

A Nanosecond Repetitively Pulsed Plasma (NRPP) generator capable of delivering an electric pulse of 10 kV during 10 ns at a frequency of up to 30 kHz has been used to stabilize and improve the efficiency of a 25 kW lean premixed propane/air flame at atmospheric pressure. We had previously shown that, when placed in the recirculation zone of the flame, the plasma significantly increases the heat release and the combustion efficiency, thus allowing to stabilize the flame under lean conditions where it would not exist without plasma. In the present work we study the influence of the discharge's repetition rate on the operating regimes of the burner and on both thermal and chemical effects. We present temperature and electron number density measurements based on the Stark-broadening effect of the Hβ Balmer line in the region where the discharge is created.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 37th AIAA Plasmadynamics and Lasers Conference
Pages507-521
Number of pages15
Volume1
StatePublished - 2006
Externally publishedYes
Event37th AIAA Plasmadynamics and Lasers Conference - San Francisco, CA, United States
Duration: Jun 5 2006Jun 8 2006

Other

Other37th AIAA Plasmadynamics and Lasers Conference
CountryUnited States
CitySan Francisco, CA
Period06/5/0606/8/06

ASJC Scopus subject areas

  • Engineering(all)

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