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2005 Fiscal Year Final Research Report Summary

Study on the ignition and the combustion control of combustible mixtures in the spherical confined vessel

Research Project

Project/Area Number 16560191
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Thermal engineering
Research InstitutionThe University of Kitakyushu, Faculty of Environmental Engineering

Principal Investigator

ONO Shinsuke  The University of Kitakyushu, Faculty of Environmental Engineering, Professor, 国際環境工学部, 教授 (80037738)

Co-Investigator(Kenkyū-buntansha) HIRAYAMA Yoshinori  The University of Kitakyushu, Faculty of Environmental Engineering, Professor, 国際環境工学部, 教授 (40253504)
IZUMI Masaaki  The University of Kitakyushu, Faculty of Environmental Engineering, Assoc. Professor, 国際環境工学部, 助教授 (50336939)
Project Period (FY) 2004 – 2005
KeywordsSpherical combustion vessel / multiple ignition / Heat release rate / Di-methyl ether / Diesel cycle / NOx / Cycle simulation
Research Abstract

To develop a simulation model for a Diesel engine cycle using DME fuel, the fundamental tests were carried out with the spherical combustion vessel which was made experimentally. The vessel of 200mm diameter equipped with the multipoint ignition system which can vary the heat release rate in a vessel through altering a burning duration and a flame propagation pattern. Since the heat loss is primarily based on the flame-interference with vessel wall, the heat release rate directly affects the exhaust emission.
The premixed combustion tests with a di-methyl ether-air mixture were carried out for different equivalence ratios and heat release patterns. The emissions of oxides of nitrogen(NOx) were measured and compared with the calculated results from the multi-zone combustion model. The results showed that the model was valid for estimation of NOx.
On the basis of this model, diesel combustion processes with a direct injection of DME were analyzed by making use of the modified simulation model with 3-zone combustion model. The indicated pressure diagrams and the emissions of oxides of nitrogen from the practical 4 cycle diesel engine were used for the calculation with the modified simulation model. The test results have shown to be proper for estimating the change of NOx emission when the heat release rate is changed. In the simulation by inspecting with the various rates, the longer duration of high temperature in the heat release process resulted in the higher NOx emission. From the results of simulation, it has been shown to be able to improve the exhaust emission characteristics of the engine by controlling the heat release rate.

  • Research Products

    (9 results)

All 2005 2004

All Journal Article (9 results)

  • [Journal Article] ガス機関の排ガス特性に及ぼす熱発生率形状とその制御に関する研究2005

    • Author(s)
      小野信輔, 平山義則, 中村孝春
    • Journal Title

      日本マリンエンジニアリング学会誌 40巻5号

      Pages: 129-134

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Combustion with Water Injection -High-speed Visualization and CFDs2005

    • Author(s)
      T.Tajima, Y.Tominaga, A.Strom, K.Takasaki, S.Yasueda, Y.Hirayama
    • Journal Title

      Proc.of 5th International Colloquium FUELS Jan 12-13,2005

      Pages: 9

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 定容容器を用いたDMEの燃焼特性とNOx生成2005

    • Author(s)
      小野信輔, 平山義則, 中村孝春, 黒木憲太郎
    • Journal Title

      日本機械学会大分地方講演会講演論文集 No.058-2

      Pages: 69-70

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Study on the heat release control by changing rate pattern to improve exhaust emission of gas engine2005

    • Author(s)
      S.Ono, Y.Hirayama, T.Nakamura
    • Journal Title

      Journal of The Japan Institution of Marine Engineering Vol.40,No.5

      Pages: 129-134

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Combustion with Water Injection - High-speed Visualization and CFDs2005

    • Author(s)
      H.Tajima, Y.Tominaga, A.Strom, K.Takasaki, S.Yasueda, Y.Hirayama
    • Journal Title

      Proc.of 5th International Colloquium FUELS Jan12-13

      Pages: 9

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Combustion characteristics and NOx formation of DME in a confined vessel2005

    • Author(s)
      S.Ono, Y.Hirayama, T.Nakamura, K.Kuroki
    • Journal Title

      Proc.of JSME conference at Oita No.058-2

      Pages: 69-70

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] ガス機関の排ガス特性に及ぼす熱発生率形状とその制御に関する研究2004

    • Author(s)
      小野信輔, 平山義則, 中村孝春
    • Journal Title

      マリンエンジニアリング学術講演論文集 第72回

      Pages: 23-24

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 固体燃料電池スタック特性に及ぼすガス流れ方式の影響2004

    • Author(s)
      泉 政明
    • Journal Title

      第13回SOFC研究発表会

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Study on the heat release control by changing rate pattern to improve exhaust emission of gas engine2004

    • Author(s)
      S.Ono, Y.Hirayama, T.Nakamura
    • Journal Title

      Proc.of 72th JIME conference

      Pages: 23-24

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2007-12-13  

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