過濃ディーゼル燃焼過程における熱分解炭化水素によるNO還元機構に関する研究 A Study on NO Reduction Mechanism Caused by Thermal Cracking Hydrocarbons during Rich Diesel Combustion

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著者

    • 野毛 宏文 NOGE Hirofumi
    • 徳島大学大学院工学研究科 Department of Ecosystem Engineering, Graduate School of Engineering, The University of Tokushima
    • 三輪 惠 MIWA Kei
    • 徳島大学大学院工学研究科 Department of Ecosystem Engineering, Graduate School of Engineering, The University of Tokushima

抄録

This study tries to investigate the reduction of nitric oxide by thermally cracked hydrocarbons under rich condition during diesel combustion. Experiments using flow reactor system, which follows the chemical process of fuel at high temperature and atmospheric pressure, show that thermal cracking of fuel starts at about 1000K, and lower hydrocarbons mainly composed of C_2H_4 and CH_4 are formed. NO can be reduced when fuel is thermally cracked and oxidized. A larger amount of NO is reduced when thermal cracking hydrocarbons are increased in quantity under rich and high temperature condition. Among decomposed hydrocarbons, C_2H_4 is easily decomposed and affects deNO mechanism. Chemical kinetic calculation using CHEMKIN III reveals the mechanism. NO is reduced through the reaction of HCCO or CH_2 with NO. In these reaction paths, C_2H_2 is an essential species. The computation also shows that this deNO mechanism can be actualized in the practical diesel combustion.

収録刊行物

  • 日本機械学会論文集 B編

    日本機械学会論文集 B編 71(708), 2193-2199, 2005-08

    一般社団法人日本機械学会

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各種コード

  • NII論文ID(NAID)
    110005051654
  • NII書誌ID(NCID)
    AN00187441
  • 本文言語コード
    JPN
  • 資料種別
    雑誌論文
  • ISSN
    03875016
  • NDL 記事登録ID
    7468005
  • NDL 雑誌分類
    ZN11(科学技術--機械工学・工業)
  • NDL 請求記号
    Z16-109
  • データ提供元
    CJP引用  NDL  NII-ELS 
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