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Collection of Airborne Dust by Water Sprays.
I&ec Process Design and Development 1973 Jul; 12:221-225
A general theoretical equation was developed for the collection efficiency of airborne dust particles by spray drops. The model assumes an inertial impaction collection mechanism and is based upon mean interdrop length and mean interparticle area. Particular attention was given to the optimum drop size for collection with open and also confined sprays from a high-pressure nozzle. This general model was specifically adapted to the collection of dust particles in a horizontal tunnel by a solid-cone water spray by including the effects of duct size and spray configuration. The theoretical collection efficiencies agreed reasonably well with experimental data. The present results can be used to select a specific spray nozzle that will provide optimum collection efficiency for airborne dust based upon the available water flow rate and line pressure.
I&ec Process Design and Development, V. 12, July 1973, PP. 221-225
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division