Zhang Jianfu, Chen Linghong, Yu Jiahan, Wu Jian, Wu Xuecheng, Cen Kefa. Detection of Polycyclic Aromatic Hydrocarbons in Diffusion Flame of Propane by Laser Induced Fluorescence[J]. Chinese Journal of Lasers, 2020, 47(4): 411002
- Chinese Journal of Lasers
- Vol. 47, Issue 4, 411002 (2020)
Fig. 1. Picture of laminar diffusion flame for propane-air
Fig. 2. Schematic of two-dimensional LIF-LII signal measurement experimental setup
Fig. 3. Schematic of time-resolved signal measurement experimental setup
Fig. 4. Two-dimensional distributions of soot-LII intensity at different wavelengths. (a) 450 nm; (b) 550 nm; (c) 650 nm
Fig. 5. Two-dimensional distributions of PAH-LIF and soot-LII intensity at different wavelengths. (a) 326 nm; (b) 365 nm; (c) 400 nm; (d) 450 nm; (e) 550 nm; (f) 600 nm
Fig. 6. Normalized intensity profiles along frame centerline obtained at different wavelengths versus frame height position
Fig. 7. Time-resolved signal peak intensity measured with PMT@450 nm versus frame height position under HE and LE conditions
Fig. 8. Time-resolved signal measured by PMT@405 nm at HAB=25 mm and at HAB=16mm, and single exponential decay fitted curve
Fig. 9. Normalized LIF time-resolved signal measured with PMT@450 nm at HAB=22 mm under various laser fluence conditions
Fig. 10. Measured LIF decay times at different wavelengths as a function of frame height position and measured temperature in Ref.[25]
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