Dust cloud evolution and flame propagation of organic dust deflagration under low wall influence

Stefan Puttinger, Christoph Spijker, Simon Schneiderbauer, Stefan Pirker, Georg Meyer, Christoph Buchner, Andreas Kerbl

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung


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.
FachzeitschriftJournal of Loss Prevention in the Process Industries
Frühes Online-Datum30 März 2023
PublikationsstatusVeröffentlicht - Juli 2023

Bibliographische Notiz

Funding Information:
The authors would like to express their gratitude to HOERBIGER Safety Solutions (IEP Technologies) for initiating and funding this research cooperation. This HOERBIGER initiative promotes the advancement of science in the combustion sector.

Publisher Copyright:
© 2023 The Author(s)

Dieses zitieren