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  • Summary & Details

Numerical Analysis of Soot Emission from a Direct-Injection Spark-Ignition Gasoline Engine using a Compact-Size Soot-Formation Model (Second Report) Effect of Coolant Temperature and Fuel Injection Timing on Soot Emissions

コンパクトな予測モデルを用いた直噴ガソリンエンジンの微粒子排出に関する数値解析(第2報) 冷却水温度と燃料噴射時期が微粒子排出特性に及ぼす影響

Detailed Information

Author(J)1) 橋本 淳, 2) 渡邊 竜之介, 3) 田上 公俊, 4) 金 尚明, 5) 窪山 達也, 6) 森吉 泰生, 7) 秋濱 一弘
Author(E)1) Jun Hashimoto, 2) Ryunosuke Watanabe, 3) Kimitoshi Tanoue, 4) Sangmyeong Kim, 5) Tatsuya Kuboyama, 6) Yasuo Moriyoshi, 7) Kazuhiro Akihama
Affiliation(J)1) 大分大学, 2) 大分大学大学院, 3) 大分大学, 4) 千葉大学, 5) 千葉大学, 6) 千葉大学, 7) 日本大学
Affiliation(E)1) Oita University, 2) Oita University, 3) Oita University, 4) Chiba University, 5) Chiba University, 6) Chiba University, 7) Nihon University
Abstract(J)著者らは既報で,ガソリンサロゲート燃料に適用可能なコンパクトなすす生成モデルを提案した.本研究では,直噴ガソリンエンジンの始動条件において,異なる冷却水温度の実験結果に対してモデル検証を行った.また,下死点近傍で燃料を噴射した場合にすす排出量が増加する傾向に対し,数値解析によって現象評価を試みた.

Translation

Abstract(E)In this study, numerical calculations of soot emissions from a DISI engine were performed by using a compact-size soot-formation model previously proposed by authors. We discussed the reproducibility of soot emissions by changing the coolant temperature and the fuel injection timing. In addition, the experimentally observed tendency that soot emission slightly increase under the fuel injection timing near the bottom dead center were clarified based on the calculated results, and the model predicted results were verified.

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