A fundamental study of chemiluminescence spectroscopy to explore the structure of turbulent premixed flames

被引：0

作者：

Hashimoto H. ^{[1
]}

Shinagawa T. ^{[1
]}

Furukawa J. ^{[1
]}

机构：

[1] Department of Mechanical Engineering, Kyushu University, Nishiku, Fukuoka-shi, Fukuoka, 819-0395

来源：

Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B | 2010年 / 76卷 / 769期

关键词：

Chemiluminescence; Flame; Premixed combustion; Spectroscopy;

D O I：

10.1299/kikaib.76.769_1420

中图分类号：

学科分类号：

摘要：

To examine temperature of the local reaction zone of turbulent premixed flames, dependence of the emission by OH, CH and C2 radicals obtained from hydrocarbon-air premixed flames on flame temperature has been examined. To detect weak emissions of C2 radical, both spectrometer and amplifies were newly developed to achieve the signal-noise ratio of the newly developed system is two-digit higher than that of the conventional system. Measurements were made at various equivalence ratios in laminar premixed methane/air and propane/air flames, which have different flame temperatures. The chemiluminescence intensity ratio of 515 nm/470 nm bans of C2, C 2* (0, 0)/C2* (1, 0), in both methane/air and propane/air flames has a high correlation with flame temperature. The chemiluminescence intensity ratio of C2 * (0, 0)/C2* (1, 0) has two branches for the flame temperature, i. e., as it increases, flame temperature increases, has maximum near the stoichiometry and decreases. The error in C 2* (0, 0)/C2* (1, 0) measurement was within 3% for propane flames, within 6% for methane flames. It has been shown in the present study that temperature of the local reaction zone of premixed flames can be estimated by measuring the chemiluminescence intensity ratio of C2* (0, 0)/C2* (1,0).

引用

页码：1420 / 1425

页数：5

共 20 条

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