Title: Flame propagation of a zirconium dust cloud in a Hartmann tube
Authors: Hosseinzadeh, Seyedehsepideh
Vanierschot, Maarten
Norman, Frederik
Verplaetsen, Filip
Berghmans, Jan
Van den Bulck, Eric
Issue Date: 2016
Host Document: 11th International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosion
Conference: ISHPMIE location:Dalian date:24-29 July 2016
Abstract: In this paper the flame propagation of a zirconium dust clouds in air is studied experimentally. The measurements were conducted in a Hartmann tube, and a high-speed CMOS camera was used to record the images of the flame. The influences of the ignition delay time, as well as the ignition energy and ignition source position are investigated. The results show that the flame speed considerably depends on both the delay time and the ignition energy. However, it is also observed that flame speed is strongly dependent on the dust concentration. Furthermore, in all cases investigated, the upward propagation is much faster than that of the downward propagation. Additionally, it is found that the flame propagation speed decreases when the ignition source is placed near the top end of the tube.
Publication status: accepted
KU Leuven publication type: IC
Appears in Collections:Applied Mechanics and Energy Conversion Section
Mechanical Engineering Technology TC, Campus Group T Leuven
Technologiecluster Werktuigkundige Industriƫle Ingenieurstechnieken

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