Laboratory Analysis of an Electrostatic Dust Collection System

K. A Rosentrater


An electrostatic precipitator dust collector was investigated to determine the strength of the
electromagnetic field between the system’s discharge and collection electrodes, as well as the
collector’s ability to remove airborne particles. The system was tested in a laboratory chamber
utilizing water-based aerosol particles to simulate dust particulates. The developed electromagnetic
field behaved in a nonlinear fashion: field strength decreased exponentially with horizontal distance
from the centerline of the collector, but varied quadratically with vertical distance from the collection
electrode, with the maximum field strength occurring near the discharge electrode. Furthermore, for all
coordinate directions examined, field strength increased as applied voltage potential between the
electrodes increased. Additionally, this system reduced airborne particle concentrations exponentially,
and produced removal rates between 8 and 13 times greater than gravitational settling alone.

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