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The concept of 2D gated imaging for particle sizing in a laminar diffusion flame

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2D particle sizing in standard laminar diffusion flame Redjem Hadef, Klaus Peter Geigle, Jochen Zerbs, Robert A. Sawchuk, David R. Snelling, The concept of 2D gated imaging for particle sizing in a laminar diffusion flame, Appl. Phys. B 112 (2013) 395-408. The original publication is available at -1- The concept of 2D gated imaging for particle sizing in a laminar diffusion flame Redjem Hadef1, Klaus Peter Geigle2*, Jochen Zerbs2, Robert A. Sawchuk3, David R. Snelling3 1 Université Larbi Ben M’Hidi, Institut de Génie Mécanique 04000 Oum El Bouaghi, Algerie 2 German Aerospace Center (DLR), Institute of Combustion Technology Pfaffenwaldring 38-40, 70569 Stuttgart, Germany 3 National Research Council of Canada (NRC), Measurement Science and Standards 1200 Montreal Road, Ottawa, ON, K1A 0R6, Canada * E-mail: [email protected] Phone: ++49-711-6862-398 FAX: ++49-711-6862-578 Keywords Soot, Diffusion Flame, Laser-Induced Incandescence Abstract In this work time-resolved laser-induced incandescence (TiRe LII) has been employed to measure primary particle diameters of soot in an atmospheric laminar ethylene diffusion flame. The generated data set complements existing data determined in one single location and takes advantage of the good spatial resolution of the ICCD detection. Time resolution is achieved by shifting the camera gate along the LII decay. One key input parameter for the analysis of time-resolved LII is the local flame temperature. This was determined on a grid throughout the flame by coherent anti-Stokes Raman scattering. The accurate temperature data, in combination with other published data from this flame, are well suited for soot model validation purposes while we showed feasibility of a shifted gate approach to deduce 2D particle sizes in the chosen standard flame. -2- Nomenclature Terms intQ d

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