Role of fluid mechanics in electrostatic precipitator design

J. H. Davidson, P. J. McKinney

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The performance of electrostatic precipitators may be substantially improved by reducing the magnitude and/or length scale of corona induced secondary flows and turbulence. Electrohydrodynamic (EHD) theory indicates that the electrode geometry and the structure of the corona discharge are critical factors in determining the character of the electrically generated flow. As a first step toward quantifying the benefits to be expected from a modification in the conventional wire-plate geometry, the electrical and fluid dynamical characteristics of a novel barbed plate-to-collector plate precipitator are experimentally investigated. Results show that the current distribution is nearly uniform in the barbed plate geometry and confirm that the electrode geometry has a significant role in secondary flow and turbulence production. Work is in progress to determine if particle collection efficiencies can be improved through the use of the planar geometry.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
PublisherPubl by American Soc of Mechanical Engineers (ASME)
Number of pages6
StatePublished - Dec 1 1988
EventForum on Industrial Applications of Fluid Mechanics-1988 - Chicago, IL, USA
Duration: Nov 27 1988Dec 2 1988


OtherForum on Industrial Applications of Fluid Mechanics-1988
CityChicago, IL, USA


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