0748 燃料の着火性に応じたDI-PCCI燃焼の制御に関する基礎研究(S41-2 燃焼制御と排出物低減技術(2),S41 燃焼制御と排出物低減技術)

概要

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The characteristics of PCCI combustion are known to be sensitive to cetane number of fuels used. To obtain basic data for combustion control in response to the change in fuel ignition quality, the influence of composition of heptane-octane mixed fuel on heat release rates and NO_x formation were investigated varying injection conditions and oxygen mole fraction using a constant volume vessel. The results showed that NO_x yield under a wide range of injection conditions is organized by a mixing index which consists of hot flame delay and the homogenization rate. Fuel with low ignitability is advantageous for low NO_x production, while the hot flame delay is sensitive to injection and ambient conditions.
社団法人日本機械学会の論文
2007-09-07