(142b) Analysis of Dust Concentration Measurements Taken during the Filling Process of a Silo
This research aims to construct a model which predicts the spatial distribution of dust concentrations during the filling process of a silo. Then passive explosions protection systems such as panels on the silo roof ventilations can be effectively designed to prevent explosions. The dust distribution was measured with an optical method developed by (Lulbadda Waduge et al., 2016). The optical method employed in a small scale experimental rig which is essentially a fluidised bed with fine materials and a single camera together with a laser source were utilised to capture the dust concentration in different areas when the dust is airborne. Then images of repeated runs were taken and post processed to compare different dust concentration levels in each set.
The hydrodynamics of the process supposed to behave the same at each repeated run of the experiment as experiments were identical to each other regarding materials and the scale. Having the same ranges of concentrations distribution at each repeated test were obtained.
L.L. Lulbadda Waduge, S. Zigan, L.E. Stone, A. Belaidi, P. García-Triñanes, Predicting concentrations of fine particles in enclosed vessels using a camera based system and CFD simulations, Process Safety and Environmental Protection, Volume 105, 2017, Pages 262-273, ISSN 0957-5820, http://dx.doi.org/10.1016/j.psep.2016.11.013.
Keywords: Laser; Optical method; Dust explosions; CFD; Experimental; Storage silos; Particle dynamics