| Conférence | 4th International Workshop and Meeting on Laser-Induced Incandescence: Quantitative Interpretation, Modeling, Application, April 18-20, 2010, Varenna, Lecco, Italy |
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| Résumé | Soot emissions from flames are a common source of atmospheric particulates. To characterise physical properties of soot particles, the volume fraction (SVF), primary particle size (dp) and soot aggregate size (the number of primary particles per aggregate, N) are useful parameters. While laser induced incandescence (LII) is now an established technique for measuring SVF and dp, it is not able to provide sufficient information on aggregate size. We demonstrate the combination of elastic light scatter (ES) and LII for the simultaneous determination of SVF, dp, and polydisperse distributions of soot aggregates using a self-preserving size distribution. It is shown how the combination of scattering angle and scattering wavelength in the scattering vector q, sets limits for the maximum detectable aggregate sizes. |
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