Absolute CH concentration measurements by cavity ring-down spectroscopy in an atmospheric diffusion flame

被引：51

作者：

Mercier, X ^{[1
]}

Jamette, P ^{[1
]}

Pauwels, JF ^{[1
]}

Desgroux, P ^{[1
]}

机构：

[1] Univ Lille 1, UMR CNRS 8522, Lab Cinet & Chim Combust, Ctr Etudes & Rech Lasers & Applicat, F-59655 Villeneuve Dascq, France

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 305卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(99)00416-9

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：

Absolute concentrations of CH radical are reported for the first time in an atmospheric diffusion flame. Measurements are performed by cavity ring-down (CRD) spectroscopy by probing the C-X system of CH around 315 nm. We used standard 308 nm coated mirrors also suitable for OH CRD measurements. Absolute concentrations are obtained from integrated absorption measurements after a deconvolution procedure. Peak mole fractions are found to be around 0.6 ppm in satisfying agreement with previously reported predictions issued from flame modelling. The ability of CRD technique to describe very narrow species profiles is demonstrated by comparison with laser-induced fluorescence measurements. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：334 / 342

页数：9

共 50 条

[21] Measurements of absolute CH concentrations by cavity ring-down spectroscopy and linear laser-induced fluorescence in laminar, counterflow partially premixed and nonpremixed flames at atmospheric pressure
Naik, SV
Laurendeau, NM
[J]. APPLIED OPTICS, 2004, 43 (26) : 5116 - 5125
[22] Differential cavity ring-down spectroscopy
Courtois, Jeromie
Bielska, Katarzyna
Hodges, Joseph T.
[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2013, 30 (06) : 1486 - 1495
[23] Measurement of atmospheric NO2 by pulsed cavity ring-down spectroscopy
Osthoff, Hans D.
Brown, Steven S.
Ryerson, Thomas B.
Fortin, Tara J.
Lerner, Brian M.
Williams, Eric J.
Pettersson, Anders
Baynard, Tahllee
Dube, William P.
Ciciora, Steven J.
Ravishankara, A. R.
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2006, 111 (D12)
[24] Cavity ring down spectroscopy measurements of absolute CN concentrations during flame deposition of diamond
Stolk, RL
ter Meulen, JJ
[J]. JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (18): : 8281 - 8291
[25] Fast and Accurate Extraction of Ring-Down Time in Cavity Ring-Down Spectroscopy
Wang Dan
Hu Ren-zhi
Xie Pin-hua
Qin Min
Ling Liu-yi
Duan Jun
[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34 (10) : 2845 - 2850
[26] Sputter erosion measurements of titanium and molybdenum by cavity ring-down spectroscopy
Surla, V
Wilbur, PJ
Johnson, M
Williams, JD
Yalin, AP
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2004, 75 (09): : 3025 - 3030
[27] Concurrent measurements of atmospheric ammonia concentrations in the megacities of Beijing and Shanghai by using cavity ring-down spectroscopy
Sun, Qian
Gu, Mengna
Wu, Dianming
Yang, Ting
Wang, Hongli
Pan, Yuepeng
[J]. ATMOSPHERIC ENVIRONMENT, 2023, 307
[28] Cavity Ring-Down Spectroscopy Based on Folded Cavity
Dong Hewei
Guo Ruimin
Cui Wenchao
Li Dong
[J]. CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG, 2020, 47 (03):
[29] Measurements of absolute concentration profiles Of C2 in non-sooting and sooting diffusion flames by coupling cavity ring-down spectroscopy and laser induced fluorescence
Mercier, X
Therssen, E
Pauwels, JF
Desgroux, P
[J]. PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2005, 30 : 1655 - 1663
[30] Investigation of kinetics of CH-radicals decay by cavity ring-down spectroscopy
Czyzewski, A
Ernst, K
Franssen, G
Karasinski, G
Kmieciak, M
Lange, H
Skubiszak, W
Stacewicz, T
[J]. CHEMICAL PHYSICS LETTERS, 2002, 357 (5-6) : 477 - 482

← 1 2 3 4 5 →