過濃混合気塊点火燃焼による高圧筒内直接噴射水素エンジンのNOx生成低減に関する研究 Reduction in NOx Formation by Ignition-combustion of Rich Mixture Plume in High Pressure Direct Injection Hydrogen Engines

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抄録

 It is reported that combustion of rich hydrogen mixture plume that is formed in the middle or just after the injection named PCC ( Plume Ignition Combustion Concept) is effective to reduce NOx formation drastically without offering any trade-offs on thermal efficiency in high output power operation in high pressure direct injection hydrogen engines. In this study fundamental requirements to achieve further reduction in NOx formation in PCC are investigated by optimizing ignition timing with the assist of visualization technology of flame propagation in the combustion chamber based on high speed laser shadowgraphy. As a result it was clarified that requirement of reducing NOx formation is controlling air entrained to hydrogen jet by shortening duration from injection of hydrogen to ignition. It was also made clear that additional approach to reduce unburned hydrogen is required in case entrained air is too low.

収録刊行物

  • Marine engineering : journal of the Japan Institution of Marine Engineering = マリンエンジニアリング : 日本マリンエンジニアリング学会誌

    Marine engineering : journal of the Japan Institution of Marine Engineering = マリンエンジニアリング : 日本マリンエンジニアリング学会誌 47(3), 429-436, 2012-05-01

    公益社団法人 日本マリンエンジニアリング学会

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各種コード

  • NII論文ID(NAID)
    10030945038
  • NII書誌ID(NCID)
    AA11505252
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13461427
  • NDL 記事登録ID
    023769598
  • NDL 請求記号
    Z16-747
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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