天然ガスPCCI機関おける圧縮比および過給圧力が運転範囲に与える影響

• 姜 正鎬

  京都大学

• 石山 拓二

  京都大学

書誌事項

タイトル別名

• Effects of Compression Ratio and Intake Charge Pressure on Operating Range of a Natural-Gas PCCI Engine

抄録

This study aims to reveal the factors which restrict operating output range in a natural-gas-fuelled PCCI engine. For this purpose, experiments were performed using a single-cylinder test engine. Effects of compression ratio and intake charge pressure on the performance and combustion characteristics were investigated. To analyze the relation between operating output range and combustion characteristics, numerical study was conducted using chemical kinetics calculation and cycle simulation with a simple ignition model. The results showed that regardless of compression ratio and intake charge pressure the pressure rise rate reaches the limit when the ignition timing moves close to TDC as the fuel quantity is increased. And also, the combustion efficiency and combustion duration vary the temperature and quantity of residual gas, which remarkably advances the ignition timing for the low intake charge temperature case.

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 79 (797), 82-92, 2013

  一般社団法人 日本機械学会

キーワード

• Internal Combustion Engine
• Gaseous Fuel
• Pollutant
• Thermal Efficiency
• Natural Gas
• PCCI

詳細情報

• CRID: 1390282681239309696
• NII論文ID: 130003374729
• DOI: 10.1299/kikaib.79.82
• ISSN: 18848346
• ISSN: 03875016
• Web Site: https://www.jstage.jst.go.jp/article/kikaib/79/797/79_82/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可