Experimental determination of Dielectric Barier Discharge (DBD) type reactors capacity

Laboratory electrical discharges that produce non-thermal plasma have been increasingly used for microbiological decontamination, surface treatment and depollution by the means of decomposing some complex molecules. This paper aims at providing a deeper understanding of the capacity that appears when using DBD type reactors. The focus of this study is the experimental basis for measuring the capacity at different electrical parameters provided by the two power supplies, one that provides impulse voltage with both polarities by using a half bridge topology and one that provides only positive polarity by using a flyback topology. The calculation of the capacity is extracted from the high voltage waveform of the discharge, by measuring the frequency that appears when the discharge takes place. The frequency of the discharge that appears depends on the stability of the high voltage output. (Abstract)