Applied Physics B

, Volume 61, Issue 5, pp 409–414 | Cite as

Laser-induced fluorescence thermometry and concentration measurements on NOA–X (0-0) transitions in the exhaust gas of high pressure CH4/air flames

  • A. O. Vyrodov
  • J. Heinze
  • M. Dillmann
  • U. E. Meier
  • W. Stricker
Article

Abstract

Laser-Induced Fluorescence (LIF) excitation spectra in the NOA–X (0-0) band were used for temperature measurements in the postflame region of high-pressure CH4/air flames. To improve the quality of the measured spectra and to perform reliable line-shape measurements, the initial mixture was doped with approximately 400 ppm NO. At pressures up to 18 bar, excellent agreement was obtained between NO LIF temperatures and NARS/rotational Raman temperatures. Effective broadening coefficients were also determined in these flames. Problems with quantitative concentration measurements of NO and single-pulse temperature measurements at high pressures are discussed.

PACS

33.00 35.00 

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • A. O. Vyrodov
    • 1
  • J. Heinze
    • 1
  • M. Dillmann
    • 1
  • U. E. Meier
    • 1
  • W. Stricker
    • 1
  1. 1.Institute of Physical Chemistry of CombustionDLRStuttgartGermany

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