Abstract
Collection efficiencies are predicted for the capture of fine, incrtialess, charged particles on a single spheroidal collector in a gaseous flow field by the action of coulombic and external electric field forces and gravity. With the flow and external fields parallel to the axis of symmetry, collection efficiencies for spheroidal collectors are found by determining particle trajectories. For three-dimensional nonsymmetric systems resulting from the flow being at an arbitrary angle to both the axis of symmetry and the external fields, collection efficiencies are found by determining particle fluxes to the collector. For single force cases, particle deposition is independent of collector geometry and, for point panicles, is the same for all stationary incompressible flows. Using a cellular model of flow around a sphere, droplet density in wet scrubbers is shown to have little hydrodynamic effect on single droplet collection efficiencies.
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