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PLIF thermometry based on measurements of absolute concentrations of the OH radical

Heinze, Johannes and Meier, Ulrich and Behrendt, Thomas and Willert, Chris and Geigle, Klaus-Peter and Lammel, Oliver and Lückerath, Rainer (2011) PLIF thermometry based on measurements of absolute concentrations of the OH radical. Zeitschrift für Physikalische Chemie, 225 (11-12), pp. 1315-1341. Oldenbourg Wissenschaftsverlag, München. DOI: 10.1524/zpch.2011.0168.

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A method for measurements of planar temperature distributions based on planar laser-induced fluorescence (PLIF) of the OH radiacal is described. The technique was developed specifically for the application in lean combustion systems, where OH equilibrium concentrations are largely independent on equivalence ratio and a function of temperature only. It is thus possible to derive a temperature information from measurements of absolute OH concentration, which can be obtained from a combined PLIF/absorption measurement. This paper discusses the basics of the method, and de-scribes validation experiments in high pressure laminar premixed flames which were performed to asses its appli-cability and accuracy. Therefore, we compared our LIF based results with CARS measurements performed in the same flames. Finally, an example for the application in a lean gas turbine model combustor is discussed.

Document Type:Article
Title:PLIF thermometry based on measurements of absolute concentrations of the OH radical
AuthorsInstitution or Email of Authors
Heinze, Johannesjohannes.heinze@dlr.de
Meier, Ulrichulrich.meier@dlr.de
Behrendt, Thomasthomas.behrendt@dlr.de
Willert, Chrischris.willert@dlr.de
Geigle, Klaus-Peterklauspeter.geigle@dlr.de
Lammel, Oliveroliver.lammel@dlr.de
Lückerath, Rainerrainer.lueckerath@dlr.de
Journal or Publication Title:Zeitschrift für Physikalische Chemie
In ISI Web of Science:Yes
Page Range:pp. 1315-1341
Publisher:Oldenbourg Wissenschaftsverlag, München
Keywords:Laser-induced fluorescence, thermometry, lean combustion, gas turbine
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignement
DLR - Research theme (Project):L -- no assignement
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Engine Measurement Systems
Institute of Propulsion Technology > Combustor
Deposited By: Dr.rer.nat. Ulrich Meier
Deposited On:19 Jan 2012 11:09
Last Modified:21 Mar 2014 03:06

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