Experimental Studies of Dispersion and Deposition of Fine Particles in a WindTunnel and Mine Airway. Volume 1. Experiments, Results, and Analyses

摘要

The objective of this research study was to provide a better understanding ofairborne dust flow in mine airways, particularly with regard to the diffusion coefficients and the deposition rates and deposition velocities of mine dusts. Another objective was to generate basic data from both wind tunnel and in-mine experiments on diffusion and deposition phenomena. The study had four components: (1) a review of literature concerned with diffusion and deposition in the field of aerosol science and literature related to mining engineering; (2) an experimental study in a wind tunnel to obtain concentration and deposition patterns of dusts typically found in wind tunnels; (3) an experimental study in a mine airway to gather similar information on concentration and deposition, and real-time concentration data; and (4) a comparative analysis of the data obtained in the wind tunnel and the mine airway, and related findings in the literature survey.