Investigation of Combustion Regimes in Super Lean-burn SI Engines Using the Turbulent Combustion Diagram

乱流燃焼ダイアグラムを用いた スーパーリーンバーンSI エンジンにおける燃焼形態の検討

Combustion regimes of super lean-burn were investigated in order to realize stable combustion for every cycle. Laminar burning velocity, flame thickness, turbulent intensity, and integral length scale were calculated, and the crank angle history of turbulent Karlovitz number was shown on the regime diagram for premixed turbulent combustion suggested by Peters. The result showed that the effect of quenching due to flame stretch is larger during initial combustion duration because turbulent Karlovitz number is larger in super lean-burn conditions, and an interpretation was given regarding the combustion regime of super lean-burn different from general flame propagation.サイクル毎に安定したスーパーリーンバーンの実現に向け，その燃焼形態を検討した．層流燃焼速度，火炎帯厚さ，乱れ強さ，積分長さスケールの4 つを推算し，Peters の乱流燃焼ダイアグラム上に乱流カルロビッツ数のクランク角履歴を示すことで，従来の火炎伝播とは異なるスーパーリーンバーンの燃焼形態に関する解釈を与えた．

• Record URL:
  https://doi.org/10.11351/jsaeronbun.48.801
• Record URL:
  http://scholar.google.com/scholar_lookup?title=Investigation%20of%20Combustion%20Regimes%20in%20Super%20Lean-burn%20SI%20Engines%20Using%20the%20Turbulent%20Combustion%20Diagram&author=K.%20Sugata&author=S.%20Lee&author=T.%20Yokomori&author=N.%20Iida&publication_year=2017
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Sugata, Kenji
  • Lee, Sejun
  • Yokomori, Takeshi
  • Iida, Norimasa
• Publication Date: 2017-7

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 801-806
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 48
  • Issue Number: 4
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Combustion; Flame propagation; Heat engines; Lean fuel mixtures; Premixing; Spark ignition engines; Turbulence
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01676676
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jul 26 2018 2:42PM