Abstract
Dust explosions constitute a serious hazard in industrial facilities where dust is deposited in the layer. This paper presents a numerical investigation into the initial process of the dust lifting and dust combustion to examine the influence of the dust layer thickness. Three different dust layer thicknesses (1.0mm, 1.5mm, 2.0mm) were used. The movement of dust layer was simulated by MP-PIC (Multiphase Particle in Cell) method, where one particle represents a group of granules. The simulation results are analyzed both qualitatively and quantitatively in terms of flow distribution, gas temperature, and dust lifting height with a focus on the detailed comparison between the three different dust layer thicknesses.
