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1 October 2018 Evaluation of the possibility of using fractal analysis to study the flame in the co-firing process
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Proceedings Volume 10808, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2018; 108081G (2018) https://doi.org/10.1117/12.2501748
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2018, 2018, Wilga, Poland
Abstract
The object of the study were time series reflecting changes in time of selected flame geometric parameters, in the cofiring pulverized coal and biomass. These parameters were: contour length, area size, X and Y coordinates of the geometric center of gravity. Time series were analyzed using seven popular methods for estimating the fractal dimension. The research was conducted for nine variants of the co-firing process, involving different heat power settings and the air flow rate and 30 biomass content. The results showed that the applied fractal dimensions parameters can be a feature that allows to recognize particular variants of the combustion process. Furthermore, the fractal dimension evaluated by the "madogram" method estimation gives good results for most variants providing good separability of the observations. The obtained results confirm the possibilities of using fractal analysis in flame studies in the co-firing of pulverized coal and biomass.
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Daniel Sawicki and Zbigniew Omiotek "Evaluation of the possibility of using fractal analysis to study the flame in the co-firing process", Proc. SPIE 10808, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2018, 108081G (1 October 2018); https://doi.org/10.1117/12.2501748
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