拡散火炎のすす生成・分解の画像処理による診断 Diagnosis of Soot Formation and Decomposition in Diffusion Flames by Image Processing Method

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It is purpose of this paper to understand from the two dimensional visualization by the soot volume fraction (maps), on account of increase the accuracy of the time-space resolved measurements by YAG laser sheet method. The YAG laser sheet (50mm × 0.5mm) of wavelength 532 nm (22mJ/pulse) is used as the light source for Mie's theory. The visualization of soot particles is realized by an ICCD camera via a high-speed gated image intensifier. A framework of this paper is held from examination of the apparatus for its validity, and the application in the case of actual flame by YAG laser sheet method. The measured results lead to the following conclusions.<BR>(1) For estimate the soot volume fraction (<I>fs</I>: cm<SUP>3</SUP>/cm<SUP>3</SUP>) from the intensity of the light scattered [counts) scatt.] by soot particles. Preliminary experiments using steady flame are carried out for the verification of the experimental equation.<BR><I>fs</I>=1.00×10<SUP>-10</SUP>+4.53×10<SUP>-9</SUP>×<I>counts</I>) <I>s</I>catt.<BR>(2) Soot concentration increases rapidly along flame sheet where flame-eddy are formed with accelerated speed. But, the decay of soot concentration is more rapid in the eddy-breakdown region near of the fuel-lean zone.<BR>(3) Soot burnout at inner part of flame front become higher in the higher gradient of diffusion flame front.

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  • 日本舶用機関学会誌  

    日本舶用機関学会誌 32(5), 357-369, 1997-05-01 

    The Japan Institute of Marine Engineering

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各種コード

  • NII論文ID(NAID)
    10002041533
  • NII書誌ID(NCID)
    AN00196373
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03883051
  • NDL 記事登録ID
    4204693
  • 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  CJP引用  NDL  J-STAGE 
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