PAH，Sootの計測と排気ガス診断への応用

抄録

In this paper, an approach for measurement of PAH and soot is introduced. Previously, we measured PAH and soot concentrations of diffusion flames in a triple port burner. The co-annual burner consists of three concentric tubes, where air flows in both inner (central) and outer tubes, and fuel flows in the annulus between these air tubes. Two diffusion flames are formed in the boundary of fuel and air. To detect PAH and soot regions, laser-induced fluorescence (LIF) and laserinduced incandescence (LII) were used. GC/MS was also used to obtain quantitative PAH concentration. For comparison, measurement of diffusion flames in a co-axial burner (double port burner) was conducted at different fuel and air velocities. Additionally, its application for exhaust gas diagnostics is also shown, corresponding to the evaluation of diesel particulate filters (DPFs).