レーザによる火炎中のOHおよびすす濃度の測定 OH and Soot Concentration Measurements in Flames by LIF & LLS Methods

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This work was concerned at the oxidation of soot. An experimental study was made of two-dimensional visualization on soot particles and OH in diffussion/premixed flames by laser sheet. The soot volume fractions were obtained from the scattered light intensity of the soot by LLS (Laser-Light Scattered) method. OH distribution was measured by Planar Laser-induced Fluorescence (LIF) method. Quantitative laser measurements of OH in the zone of soot oxidation was made difficult by the presence of soot particles, which induced partial extinction and elastic scattering of the laser radiation. To improve the accuracy of the OH fluorescence signal, the spiked noises were reduced by the average of 25 shots measurements.<BR>Along the flame' s axis and radial distance, profiles of OH and soot concentrations were obtained over the zone where soot oxidation took place. The peak of the soot concentration was located just inside the position of the OH concentration peak (flame front), which indicated that soot was produced in the fuel rich region near the peak of the OH concentration. When the OH concentration was raised, the soot burnout rate increased.

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  • 日本舶用機関学会誌  

    日本舶用機関学会誌 33(12), 854-863, 1998-12-01 

    The Japan Institute of Marine Engineering

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各種コード

  • NII論文ID(NAID)
    10002246938
  • NII書誌ID(NCID)
    AN00196373
  • 本文言語コード
    JPN
  • 資料種別
    OTR
  • ISSN
    03883051
  • NDL 記事登録ID
    4622524
  • NDL 雑誌分類
    ZN24(科学技術--運輸工学--船舶)
  • NDL 請求記号
    Z16-747
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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