A Technique for Pressure Measurement in the Active Electrical Zone of a Wire-Cylinder Electrostatic Precipitator

Probe techniques are discussed which have proven useful in the measurement of the current induced pressure distribution in the active electrical zone of a wire-cylinder electrostatic precipitator. The cylindrical electrode configuration is somewhat unique in that the pressure distribution is exactly known in the case of negligible axial flow and thus provides a check on the experimental technique. The measurement strategy combines alignment of the probe on an equipotential surface, control of probe current drainage to a level consistent with the probe's size and location in the field, and use of a guard electrode near the probe insertion point. Pressure measurements made with probe electrical characteristics indicating a minimally perturbed electric field are in close agreement with analytical prediction, and the experimental techniques appear to be applicable to other types of flow measurement in cylinder and duct precipitators. Copyright © 1986 by The Institute of Electrical and Electronics Engineers. Inc.

Duke Scholars

Author Edward J. Shaughnessy Thomas Lord Department of Mechanical Engineering and Materia ...