Processing of Luminescent Radical Images for Flame Diagnostics

• MIZUTANI Yukio

  Faculty of Engineering, Osaka Universtiy

• NAKABE Kazuyoshi

  Faculty of Engineering, Osaka Universtiy

• MATSUMOTO Yasushi

  Wako Center, Honda Research & Development Co., LTD.

• SAEKI Takatoshi

  Osaka Gas Co., LTD.

• MATSUI Tohru

  Faculty of Educatio, Wakayama University

抄録

A technique for flame diagnostics was developed, in which the luminescence images of OH, CH and C_2 radicals were visualized and processed. Both short-exposure images and time-averaged ones of these radicals were obtained for nonluminous flames. For luminous flames, on the other hand, luminescence images of OH and CH radicals were separated very accurately from the intense background emissions. This was done by processing the monochromatic images of a flame in and around the radical luminescence band obtained using a set of interference optical filters and an image intensifier. The details of the technique were established by spectroscopic observation of a Wolfhard-Parker flame or a turbulent Bunsen flame as well as the computer simulation based on the images. The accuracy of the obtained luminescence images of radicals was evaluated by comparing them with monochrometer data. The present technique is appropriate for the direct visualization of the flame reaction zone and is applicable to industrial flames to which the PLIF technique is difficult to apply.

収録刊行物

• JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties

  JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties 32 (3), 455-463, 1989-08-15

  一般社団法人日本機械学会

キーワード

• Combustion
• Image Processing
• Chemiluminescence
• Radicals
• Flame Reaction Zone
• Visualization
• Optical Filters

詳細情報

• CRID: 1571980077084067712
• NII論文ID: 110002494286
• NII書誌ID: AA10680596
• ISSN: 09148817
• 本文言語コード: en
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