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Proceedings Paper

Proposal of quantitative measurement of OH radical using planar laser induced fluorescence calibrated by cavity ring-down spectroscopy in turbulent premixed flames
Author(s): Shuang Chen; Xiaobo Tu; Tie Su; Jinhe Mu; Furong Yang
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Paper Abstract

Planar laser induced fluorescence (PLIF) has been a very important species analysis approach in combustion research, but is most often presented qualitatively. Therefore, another supplementary techniques are needed for quantitative PLIF measurement. In this paper, we propose a quantitative OH concentration measurement method using PLIF calibrated by cavity ring-down spectroscopy (CRDS). The CRDS measurement is firstly applied to a methane-air atmospheric pressure flame on a McKenna burner and determine the OH absolute density. Then the PLIF signal is calibrated by the determined OH concentration on the same flame under the same condition. The calibrated PLIF setup is fixed, and another PLIF setup is added to form a two-line OHPLIF thermometry to measure the 2D temperature distribution. Finally, a quantitative OH-PLIF measurement method is provided for the turbulent premixed flame on a Bunsen burner based on this setup.

Paper Details

Date Published: 12 May 2017
PDF: 5 pages
Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 1017310 (12 May 2017); doi: 10.1117/12.2268312
Show Author Affiliations
Shuang Chen, China Dynamics Research and Development Ctr. (China)
Xiaobo Tu, China Dynamics Research and Development Ctr. (China)
Tie Su, China Dynamics Research and Development Ctr. (China)
Jinhe Mu, China Dynamics Research and Development Ctr. (China)
Furong Yang, China Dynamics Research and Development Ctr. (China)


Published in SPIE Proceedings Vol. 10173:
Fourth International Symposium on Laser Interaction with Matter
Yongkun Ding; Guobin Feng; Dieter H. H. Hoffmann; Jianlin Cao; Yongfeng Lu, Editor(s)

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