کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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240887 | 1427922 | 2013 | 8 صفحه PDF | دانلود رایگان |
In the field of fire studies, it is interesting to provide useful data for the validation of soot production and radiation models. 2D soot concentration in the flame and burning rate of the solid surface have been determined in the case of the combustion of a vertical PMMA slab. The local soot concentration has been measured with the Laser-Induced Incandescence method. This one has been calibrated with in situ extinction measurements performed simultaneously (at 1064 nm). The interference signals of LII caused by laser scattering and Laser-Induced fluorescence have been considered and eliminated by a well suited detection. The flat field effect caused by the ICCD camera has also been corrected. The trapping effect on the LII signal has also been considered. The flame grows on the slab after the ignition, and after 1500 s a steady state of combustion appears. During this period, the soot profiles in the boundary layer have been measured at two heights in the flame and their main features will be discussed. It has been possible to determine the burning rate of the PMMA slab from the observation of the displacement of soot profiles in the camera field. The values at both heights are respectively 5.55 and 6.95 g/s/m2. These values will be compared with results obtained in other studies.
Journal: Proceedings of the Combustion Institute - Volume 34, Issue 2, 2013, Pages 2575–2582