Abstract
Nano meter size particulate matter (PM) formed by the combustion process of hydrocarbon fuel has harmful effects on human health. Fundamental research works for investigation of formation behavior of PM precursor such as polycyclic aromatic hydrocarbons (PAHs) in combustion process were required for the reduction of nano-PM emission. In this study, PM and PAH formed by low temperature (less than 1350K) pyrolysis and oxidation of hydrocarbon fuel using a flow reactor were investigated. The mass concentration of PM was obtained by the filter sampling method with a glass-fiber filter, while the mass concentration of PAH was analyzed by a Gas Chromatography. In addition, numerical simulation for PAH formation was performed using a CHEMKIN-Pro software. As a result, it was found that the mass concentration of PM increased with temperature raise under various equivalent ratio conditions (φ = ∞, 6.2 and 2.8). Therefore, it was also found that the mass concentration of PM without oxidation condition was higher than that with oxidation condition.
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