Dust cloud evolution and flame propagation of organic dust deflagration under low wall influence
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In: Journal of Loss Prevention in the Process Industries, Vol. 83.2023, No. July, 105042, 07.2023.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Dust cloud evolution and flame propagation of organic dust deflagration under low wall influence
AU - Puttinger, Stefan
AU - Spijker, Christoph
AU - Schneiderbauer, Simon
AU - Pirker, Stefan
AU - Meyer, Georg
AU - Buchner, Christoph
AU - Kerbl, Andreas
N1 - Publisher Copyright: © 2023 The Author(s)
PY - 2023/7
Y1 - 2023/7
N2 - The present study discusses experiments on organic dust explosions in a setup with low wall influence. The proposed apparatus decouples the dust dispersion and the deflagration event in two separate compartments. The use of a continuous-wave laser to illuminate the centre plane of the observation chamber allows capturing both, the dust cloud and the flame during the same experiment and eliminates typical problems caused by the limited dynamic range of high-speed cameras. A k-means clustering method is used for image segmentation to obtain the spatial extent and the propagation velocities of the unreacted particle cloud and the flame zone. Spatially resolved velocities are calculated by the additional use of an optical flow method. The main goal of the presented setup and image processing method is to provide high quality validation data for the development of numerical models on dust deflagration.
AB - The present study discusses experiments on organic dust explosions in a setup with low wall influence. The proposed apparatus decouples the dust dispersion and the deflagration event in two separate compartments. The use of a continuous-wave laser to illuminate the centre plane of the observation chamber allows capturing both, the dust cloud and the flame during the same experiment and eliminates typical problems caused by the limited dynamic range of high-speed cameras. A k-means clustering method is used for image segmentation to obtain the spatial extent and the propagation velocities of the unreacted particle cloud and the flame zone. Spatially resolved velocities are calculated by the additional use of an optical flow method. The main goal of the presented setup and image processing method is to provide high quality validation data for the development of numerical models on dust deflagration.
KW - Dispersion system
KW - Dust deflagration
KW - Flame propagation
KW - Image processing
KW - Optical flow
UR - http://www.scopus.com/inward/record.url?scp=85151469766&partnerID=8YFLogxK
U2 - 10.1016/j.jlp.2023.105042
DO - 10.1016/j.jlp.2023.105042
M3 - Article
AN - SCOPUS:85151469766
VL - 83.2023
JO - Journal of Loss Prevention in the Process Industries
JF - Journal of Loss Prevention in the Process Industries
SN - 0950-4230
IS - July
M1 - 105042
ER -
