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  • Summary & Details

Dependence of Ignition Delay on Cetane Number under Various Super-charging and EGR Conditions in Diesel Combustion

過給・EGR条件下におけるディーゼル燃焼の着火遅れとセタン価

Detailed Information

Category(J)研究論文

Translation

Category(E)ResearchPaper
Author(J)1) 坂根 悠平, 2) 菅野 椋太, 3) 楊 俣睿, 4) 小橋 好充, 5) 柴田 元, 6) 小川 英之
Author(E)1) Yuhei Sakane, 2) Ryota Kanno, 3) Yang Yurui, 4) Yoshimitsu Kobashi, 5) Gen Shibata, 6) Hideyuki Ogawa
Affiliation(J)1) 北海道大学大学院工学院, 2) 北海道大学大学院工学院, 3) 北海道大学大学院工学院, 4) 北海道大学大学院工学研究院, 5) 北海道大学大学院工学研究院, 6) 北海道大学大学院工学研究院
Abstract(J)過給・EGR条件下におけるディーゼル燃焼の着火遅れに対するセタン価の影響を把握するため,種々のセタン価の燃料について,吸気の酸素濃度,温度,および圧力を広範に設定して系統的な着火遅れデータを取得した.各パラメータの影響度を明らかにするとともに,セタン価を含むアレニウス型の着火遅れ予測式を提唱した.

Translation

Abstract(E)To understand the dependence of ignition delay on the cetane number under various super-charging and EGR conditions in diesel combustion, ignition delays were systematically measured in a 0.83 L single cylinder diesel engine. The investigations were conducted over a wide range of intake oxygen concentrations, intake gas temperatures, and intake pressures with various cetane numbers to develop an empirical formula for the ignition delay based on the Arrhenius equation. The final proposed equation can adequately predict ignition delays with three parameters: the cetane number as well as the in-cylinder gas temperature and the oxygen partial pressure at the start of the fuel injection.

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