Scaling Laws Between Mono and Multi-Point Configuration In Positive DC Corona Discharge in Air
Résumé
This work is devoted to the study of the electrical behavior of DC point-to-plane air corona discharges. We specifically aim at looking for possible scaling laws that could exist when passing from a mono-point to plan, to multi-points to plan reactor geometry. The electrical parameters are obtained based on experimental data of the discharge voltage and current, thanks to the simulation of our model, proposed and validated, in references [1, 2]. The discharge is represented by variable, in series resistor and capacitor. First, both electrical parameters of the discharge are determined in several operating points relative to the voltage magnitude and inter-electrode distance. This step is done for all the following geometric configurations of electrodes: - mono tip / plan, - close bi tip / plan – distant bi tip / plan remote. Thereafter, we compare the discharge resistance and capacity for the three configurations, phase by phase, for the same operating points.