A three dimensional numerical model was developed for the description of the physical processes in the electrostatic precipitator(ESP)

including fluid flow

corona discharge

particle charging and particle dynamics.Fluid flow was solved using the time-averaged Navier-Stokes equation and the standard κ-ε turbulent model.The electric field generated by corona discharge was solved using an unstructured finite volume method.Particle motion was modeled using the Lagrangian method.Particle charge was calculated by the integration of the charging rate equation.The Rosin-Rammler distribution was used to model particle size distribution.The model was verified by comparing the numerical results with the experimental data of a laboratory scale ESP.The model predictions of plate current density and particle transverse velocity agreed well with the measurements.Finally

the characteristics of fluid flow distribution

particle charging process

particle trajectories and collection efficiency were analyzed.