対向流拡散火炎におけるPAHとすすの生成に関する研究

概要

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An experimental and numerical study on soot formation in a counterflow methane/oxygen diffusion flame was made. In the experiment, PAH concentration distributions in the flame was studied by using laser induced fluorescence (LIF), and soot volume fraction was studied by using the light scattering technique. In the numerical study, the flame structure and the gas-phase PAH concentration distributions were calculated with detailed reaction mechanisms for combustion and PAH reactions. The predicted distributions of temperature and main species concentrations correlated satisfactory with those observed in the experiment, suggesting that the numerical calculation is reliable. The comparison of the observed LIF intensity distributions with the predicted PAH distributions has shown that the LIF possibly comes from Benzene. The comparison of the light scattering intensity and the predicted PAH distributions has suggested that Naphthalene should play a key role in the soot nucleation process.
社団法人日本機械学会の論文
1999-12-25