アルコールディーゼルの熱面による着火補助効果とその機構

フォーマット:

論文

責任表示:

柄沢, 隆夫 ; 川口, 暁生 ; 志賀, 聖一 ; 倉林, 俊雄

言語:

日本語

出版情報:

日本機械学会, 1988-07-25

著者名:

• 柄沢, 隆夫
• 川口, 暁生
• 志賀, 聖一
• 倉林, 俊雄

掲載情報:

日本機械学會論文集. B編

ISSN:

0387-5016      

巻:

54

通号:

503

開始ページ:

1848

終了ページ:

1855

バージョン:

VoR

概要:

application/pdf<br />Journal Article<br />This paper presents an experimental study being aimed at revealing the ignition assistance effect of a hot surface in an alcohol-fueled diesel engine and its mechanism. A single shot of spray was injected into a motored diesel engine. Ignition lag was measured and was split into two regimes, physical lag and chemical lag, by applying a statistical technique presented by S. Kumagai. High-speed direct photographs … were also taken. The dependence of those ignition lags were classified into three regions on their Arrhenius plots. In lower hot-surface temperatures, the ignition lags decrease exponentially with increasing the hot-surface temperature. In higher temperature regions, the ignition lags tend to have constant values, passing through the transient region. By combining the high-speed photographs, it is suggested that the hot surface does not initiate flame propagation, but supplies heat to assist the spontaneous ignition as the assistance mechanism. 続きを見る