Quantitative NO-LIF imaging in high-pressure flames

Planar laser-induced fluorescence (PLIF) images of NO concentration are reported in premixed laminar flames from 1--60 bar exciting the A-X(0,0) band. The influence of O2 interference and gas composition, the variation with local temperature, and the effect of laser and signal attenuation by UV ligh...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2002-07, Vol.75 (1), p.97-102
Main Authors: BESSLER, W. G, SCHULZ, C, LEE, T, SHIN, D.-I, HOFMANN, M, JEFFRIES, J. B, WOLFRUM, J, HANSON, R. K
Format: Article
Language:English
Subjects:
Analytical chemistry
Attenuation
Biological and medical applications
Chemical analysis and related physical methods of analysis
Chemistry
Density
Exact sciences and technology
Excitation
Fundamental areas of phenomenology (including applications)
Gas composition
General, instrumentation
Imaging
Interference
Laser spectroscopy
Lasers
Optics
Physics
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Summary:Planar laser-induced fluorescence (PLIF) images of NO concentration are reported in premixed laminar flames from 1--60 bar exciting the A-X(0,0) band. The influence of O2 interference and gas composition, the variation with local temperature, and the effect of laser and signal attenuation by UV light absorption are investigated. Despite choosing a NO excitation and detection scheme with minimum O2-LIF contribution, this interference produces errors of up to 25% in a slightly lean 60 bar flame. The overall dependence of the inferred NO number density with temperature in the relevant (1200--2500 K) range is low (
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-002-0946-0