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LASER-INDUCED INCANDESCENCE AS A DIAGNOSTIC FOR SOOT PARTICULATE MEASUREMENTS

DOI: 10.1615/ICHMT.2009.CONV.1270
16 pages

Klaus Peter Geigle
Institute of Combustion Technology, German Aerospace Center (DLR), Stuttgart, Germany

Redjem Hadef
Faculté des Sciences et de la Technologie, Université Larbi Ben M’Hidi, Oum El Bouaghi, Algérie

Manfred Aigner
German Aerospace Center (DLR), Institute of Combustion Technology, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany

Résumé

Laser-induced incandescence has emerged as a promising non invasive technique for measuring spatially and temporally resolved soot volume fraction and size. In this investigation we try to more assess its performance by characterizing particle size measurements using time-resolved LII. The experiments were performed in a premixed ethylene/air flame burning on a sintered stainless steel plug (McKenna) burner with different values of the equivalence ratio. The obtained results are in good agreement with the values measured by others techniques. The data analyzed with the help of validated LII models will be useful for the further development of soot formation models.

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