%0 Journal Article
%J Proceedings of the Combustion Institute
%D 2005
%T Investigation of laminar pressurized flames for soot model validation using SV-CARS and LII
%A Geigle, Klaus Peter
%A Schneider-Kühnle, Y.
%A Tsurikov, M. S.
%A Hadef, R.
%A R. Lückerath
%A Krüger, V.
%A Stricker, W.
%A Aigner, M.
%K Laminar premixed
%K Laser diagnostics
%K Pressurized flames
%K soot
%P 1645-1653
%V 30
%X Quasi-simultaneous measurements of temperature and soot volume fraction in pressurized and atmospheric  flames are presented. A dual-flame burner concept yielded stable laminar flames for a variety of  equivalence ratios, pressures, and fuels, and permitted the investigation of flames without the influence  of soot oxidation. A CARS-based technique (shifted vibrational CARS) for temperature measurements,  which offers high accuracy over the entire relevant temperature and soot concentration range, is described.  Comparison of temperature measurements in the nonsooting part of a laminar diffusion flame at atmospheric  pressure by SV-CARS and conventional N2 Q-branch CARS yielded excellent agreement. This  new technique was applied to quasi-1D laminar flames with soot concentrations up to 10 ppm and pressures  up to 5 bar. The temperature profiles measured in these flames were combined with soot concentration  measurements using LII; calibration and correction for signal trapping yielded quantitative soot  volume fraction data. The temperature and soot concentration data were combined to generate a comprehensive  dataset for the validation of an improved kinetic soot model for the prediction of soot formation in  premixed combustion at elevated pressure.
%@ ISSN 1540-7489