Carbon dioxide UV laser-induced fluorescence in high-pressure flames

被引：21

作者：

Bessler, WG

Schulz, C

Lee, T

Jeffries, JB

Hanson, RK

机构：

[1] Heidelberg Univ, Inst Chem Phys, D-69120 Heidelberg, Germany

[2] Stanford Univ, High Temp Gasdynam Lab, Dept Engn Mech, Stanford, CA 94305 USA

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 375卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(03)00858-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Laser-induced fluorescence (LIF) of carbon dioxide is investigated with excitation between 215 and 255 nm with spectrally resolved detection in 5-40 bar premixed CH4/O-2/Ar and CH4/air flat-flames at fuel/air ratios between 0.8 and 1.9. The LIF signal consists of a broad (200-450 nm) continuum with a faint superimposed structure, and this signal is absent in similar H-2/O-2/Ar flames. There is strong evidence this signal arises from CO2, as the signal variations with excitation wavelength, equivalence ratio and flame temperature all correlate with CO2 absorption cross-sections. The signal is linear with pressure and laser fluence within the investigated ranges. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：344 / 349

页数：6

共 26 条

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[Anonymous], 2003, P 3 JOINT M US SECTI

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