502 噴流衝突を受ける噴霧火炎挙動に関する研究(エンジンシステム・燃焼)(オーガナイズドセッション(c)環境負荷低減のためのエネルギー変換技術)

概要

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The authors have reported significant reductions in particulate emissions of diesel engines by generating strong turbulence during the combustion process. The objective of this study is to identify optimum conditions of turbulent mixing for effective soot reduction during combustion. The experiments were conducted with a constant volume combustion vessel equipped with a jet-generating cell, from where turbulent jet is injected toward a main spray during its combustion process. The jet from the cell impinges the main flame, causing changes in the mixing of fuel and air. Observation was made for different directions of the impingement. It is shown that compared with the case without jet flame soot decreases significantly with the impingement. There were no apparent differences in the combustion duration when the direction of impingement was varied, although the mechanisms of soot reduction seemed different.
一般社団法人日本機械学会の論文
2000-09-25