雰囲気酸素濃度・温度分布の不均一性がディーゼル燃焼に及ぼす影響 : 第1報,酸素濃度の不均一性の影響(熱工学,内燃機関,動力など)

概要

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In order to clarify the effect of heterogeneity of distribution of oxygen concentration in a combustion chamber induced by EGR on the soot and NO emissions from the diesel engine, the combustion characteristics of diesel spray flame achieved in a rapid compression and expansion machine (RCEM) at various patterns of oxygen distribution in the chamber are investigated. The distribution of oxygen in a chamber is controlled by changing the location, phase, and duration of EGR gas injection with multi-port intake system. The multi-port intake system can make the circler distributions of oxygen with different gradient of oxygen concentration between-260 and 260mol/m^4. NO and soot emissions are measured at different oxygen concentration distributions. Results indicate that the amount of oxygen entrained into the spray upstream the luminous flame region affects the NO and soot emissions from diesel flame strongly.
社団法人日本機械学会の論文
2007-12-25