Analysis of positive corona in wire-to-plate electrostatic precipitator

Laboratoire de Génie Électrique, Université A. Mira de Béjaïa, 06000 Béjaïa, Algeria

Corresponding author: yzebboudj@yahoo.fr

Received: 15 September 2008
Revised: 24 April 2009
Accepted: 21 September 2009
Published online: 26 November 2009

Abstract

This paper analyses corona discharge in ambient air flow associated with laboratory-scaled wire-to-plate electrostatic precipitator (WPESP). The corona discharge is analysed by a combined iterative computational technique based on the finite element method (FEM) and charge simulation method (CSM). The phenomenon is mathematically described by Maxwell's equations in differential form. A finite element method is used to solve the Poisson's equation and the charge simulation method is used to satisfy the current continuity condition. Measurement method of the positive dc corona current density and electric field, taking into account the air flow velocity, has been introduced. The computed results are compared with experimental results to test the effectiveness of this approach.