Instantaneous and time-averaged velocity fields in a wide electrostatic precipitator

J. Podlinski (1) , Pierre Atten (2) , J. Mizeraczyk (1)

1 Centre for plasma and laser engineering
2 G2ELab - Laboratoire de Génie Electrique de Grenoble

This work was aimed at clarifying whether the electrohydrodynamic (EHD) flow in a relatively wide electrostatic precipitator (ESP) (width:height = 2) is 2- or 3- dimensional (3D). The previous our measurements of 3D timeaveraged flow velocity fields suggested that the flow in the ESP duct centre is almost 2-dimensional. In this paper we present both the 3D instantaneous and time-averaged flow velocity fields in a relatively wide ESP (width:height = 2). The ESP used in this work was an acrylic parallelepiped with a negatively polarized wire discharge electrode and two plate collecting electrodes. The velocity field was measured using Particle Image Velocimetry in the observation midplane along the ESP.

Domaines: Energie électrique

J. Podlinski, Pierre Atten, J. Mizeraczyk. Instantaneous and time-averaged velocity fields in a wide electrostatic precipitator. 6ème Conférence de la Société Française d'Electrostatique, Jul 2008, Paris, France. pp.142-149. ⟨hal-00372157⟩