PLIF Thermometry Based on Measurements of Absolute Concentrations of the OH Radical
作者： Johannes Heinze , Ulrich Meier , Thomas Behrendt , Chris Willert , Klaus-Peter Geigle
关键词: Planar 、 Combustor 、 Absorption (electromagnetic radiation) 、 Laminar flow 、 Lean combustion 、 Equivalence ratio 、 Gas turbines 、 Chemistry 、 Laser-induced fluorescence 、 Analytical chemistry
摘要: A method for measurements of planar temperature distributions based on laser-induced fluorescence (PLIF) the OH radiacal is described. The technique was developed specifically application in lean combustion systems, where equilibrium concentrations are largely independent equivalence ratio and a function only. It thus possible to derive information from absolute concentration, which can be obtained combined PLIF/absorption measurement. This paper discusses basics method, de-scribes validation experiments high pressure laminar premixed flames were performed asses its appli-cability accuracy. Therefore, we compared our LIF results with CARS same flames. Finally, an example gas turbine model combustor discussed.
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