Experimental study of high resistivity particles collection using an electrostatic precipitator in wire-to-cylinder configuration
Résumé
In this paper, a new electrostatic precipitator (ESP) with asymmetrical wire-to-cylinder configuration is investigated experimentally. The main objective is to evaluate the collection efficiency of high resistivity particles such as the ones released from cement manufacturing processes. The experiments are performed with cement particles ranging from 0.18 to 5 µm with a mean size of about 0.4 µm. An aerosol spectrometer is employed for characterizing the size distribution of these particles at the outlet of the ESP. The collection efficiency is estimated for various DC applied voltage magnitudes and for both positive and negative polarities. The electrical measurements show that the behavior of corona discharges is similar to that obtained insymmetrical wire-to-cylinder configuration. Results show that the particle collection efficiency of the ESP can reach 95% in the case of negative corona discharge.