JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
63890000.pdf1.98 MB
titleChemiluminescence sensor for active control of combustion
Other TitleChemiluminescence sensor for active control of combustion
Author(jpn)Zimmer, Laurent; 立花 繁
Author(eng)Zimmer, Laurent; Tachibana, Shigeru
Author Affiliation(jpn)宇宙航空研究開発機構 総合技術研究本部 航空エンジン技術開発センター; 宇宙航空研究開発機構 総合技術研究本部 航空エンジン技術開発センター
Author Affiliation(eng)Japan Aerospace Exploration Agency Aeroengine Technology Center, Institute of Aerospace Technology; Japan Aerospace Exploration Agency Aeroengine Technology Center, Institute of Aerospace Technology
Issue Date2007-03-30
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication date2007-03-30
AbstractThe present document summarizes the different experiments done on active control by using chemiluminescence measurements. First a brief introduction on the chemical mechanisms that are responsible for chemiluminescence in hydrocarbon flames is presented together with simulations for lean cases. Detailed discussion and limitations of inverse Abel transform to estimate the planar distribution of the chemiluminescence is shown, and effects of absorption and geometrical optics are discussed. A brief presentation of the two different combustors is done followed by a detailed explanation of the results obtained with chemiluminescence. Three different chemiluminescence techniques are used, namely spatially, spectrally and temporally resolved techniques. All those three approaches prove to be useful to characterize the oscillating mechanisms occurring in premixed combustors. Imaging techniques are used to show the regions where strong coupling between pressure and heat release exist. Spectrally resolved techniques are used to discuss the nature of the flame (from premixed to non fully premixed) and to obtain an estimate of the equivalence ratio through emission ratio between OH* and CH* emissions. Finally, temporally resolved techniques can be used to detect onset of oscillatory combustion using combined pressure-chemiluminescence product or through an analysis in the frequency domain (coherence) to understand the frequencies at which coupling between pressure and heat release occurs. Conclusions are drawn and emphasizes for future investigations are addressed.
DescriptionJAXA Research and Development Memorandum
Keywordschemiluminescence; hydrocarbon flame; flame structure; premixed flame; imaging technique; nitrogen oxide; air pollution; free radical; hydroxyl radical; spectrometer; flow visualization; 化学発光; 炭化水素炎; 火炎構造; 与混合炎; 撮像技術; 窒素酸化物; 大気汚染; フリーラジカル; ヒドロキシルラジカル; 分光器; 流れの可視化
Document TypeTechnical Report
JAXA Category研究開発資料
Report NoJAXA-RM-06-016E

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