日本機械学会論文集 B編
Online ISSN : 1884-8346
Print ISSN : 0387-5016
ディーゼル燃料の熱分解成分を用いた拡散火炎中のすす前駆体およびPMの生成
野毛 宏文吉原 雄一木戸口 善行三輪 惠
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2007 年 73 巻 725 号 p. 328-334

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Experimental work was performed to investigate formation of soot precursor and PM in diesel combustion process using a flow reactor and a laminar co-flow diffusion burner. Thermally decomposed aliphatic diesel fuel produced in the flow reactor was supplied directly to the burner as fuel. Measurements were conducted in the flow reactor, in the flame, and the exhaust for light hydrocarbons, low molecular weight aromatics, PAHs, soot precursor, and PM. Results show that many PAHs ranging from two to five-member ring are already formed as well as light hydrocarbon such as C2H4, C2H2 and CH4 during pyrolysis in the flow reactor. Exhaust PM is subject to be formed when abundant C2H2, Benzene, PAHs are produced during high temperature thermal decomposition of aliphatic diesel fuel, and the structure of PM has long chain-like aggregation. Measured fluorescence spectrometry indicates 464 nm peak. This peak is caused by soot precursor, which is in the SOF extracted from PM.

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