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Contact‐free measurements of oxygen concentration in industrial flames by raman scattering
Author(s) -
Leipertz Alfred,
Haumann Jürgen,
Fiebig Martin
Publication year - 1987
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270100124
Subject(s) - raman scattering , raman spectroscopy , analytical chemistry (journal) , combustion , stoichiometry , laser , oxygen , chemistry , equivalence ratio , materials science , detection limit , optics , combustor , chromatography , organic chemistry , physics
Spatially resolved oxygen concentration measurements were performed in premixed hydrocarbon flames by using laser induced spontaneous Raman scattering. The measurements demonstrate the performance of a relatively simple pulsed laser Raman probe for fundamental combustion studies and also for the control of the equivalence ratio in flames (best spatial resolution: 0.2 mm 3 ; theoretical detection limit: 0.8% of O 2 ). Comparison of the results with those obtained by a mechanical suction probe (Magnos 2 T) confirmed a good agreement. At present, control of different stoichiometric conditions is possible at a minimum O 2 concentration of 1.3%.