Recent progress in research on electrostatic precipitation (invited paper)

Electrostatic precipitation is a mature technology for many years successfully used in industrial applications. However, with increasingly stringent environmental protection requirements these devices are expected to work with higher efficiency, especially for small dust particles. In this situation, the research on electrostatic precipitation is still very active with an ever increasing number of publications. The present paper aims on a review of recently published papers in this area. In the first part, new and improved precipitator configurations are reviewed, with a focus on multi-stage precipitation process, particle agglomeration and hybrid filtration. These techniques should be especially beneficial for collecting submicron particles. In the second part of this paper, the numerical techniques for simulating the precipitation process are discussed. The models to predict the particle trajectories and collection efficiency include not only the gas discharge, flow, and the particle dynamics, but also the effect of gas temperature, humidity and chemistry.

List of contents.