画像計測によるディーゼル噴霧・火炎の研究 : 第2報, 超高噴射圧力下の噴霧・火炎の特性

概要

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The relations were investigated experimentally between the characteristics of the non-evaporating spray and those of the corresponding flame both of which were achieved in a rapid compression machine. The fuel injection pressure was changed in a range of 55 to 260MPa and other injection parameters such as orifice diameter and injection duration were changed systematically. The characteristics of the non-evaporating spray such as the Sauter mean diameter and the mean excess air ratio of the spray were measured by an image analysis technique. As for the flame the time required for a pressure rise due to combustion was taken as an index to characterize the flame. It was concluded that the mean excess air ratio of a spray is the major factor which controls the burning rate and that the high injection pressure is effective in shortening the combustion duration and reducing soot formation.
一般社団法人日本機械学会の論文
1991-06-25