Laser diagnostic imaging of energetically enhanced flames using direct microwave plasma coupling

Xing Rao, Stephen Hammack, Campbell Carter, Tonghun Lee

Research output: Contribution to journalArticlepeer-review

Abstract

Quantitative images of temperature and hydroxyl (OH) concentrations are presented in plasma-enhanced flames, where a nonthermal microwave plasma discharge is coupled directly with the reaction zone of the flame. The plasma jet is generated through a novel microwave (2.45 GHz) waveguide based a coaxial reactor system. Planar laser-induced fluorescence is used to generate the OH fields, and planar Rayleigh scattering thermometry is used for the temperature. Plasma-enhanced flames present new possibilities for ignition and flame holding under harsh operating conditions, including stabilization of combustion in hypersonic flame conditions.

Original languageEnglish (US)
Article number5771602
Pages (from-to)2354-2355
Number of pages2
JournalIEEE Transactions on Plasma Science
Volume39
Issue number11 PART 1
DOIs
StatePublished - Nov 1 2011
Externally publishedYes

Keywords

  • Laser-induced fluorescence
  • Rayleigh scattering
  • nonequilibrium microwave plasma
  • plasma-enhanced combustion

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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