Center of Plasma Technology, Faculty of Science, Al-azhar University, Nasr City, Cairo, Egypt
The effect of the frequency on the different parameters of ozone generation in the dielectric barrier discharge (DBD) has been investigated. It is found that at low frequency, ( Hz), an electric resonance can be obtained in the electric circuit. The onset voltage, at which the ozone starts to build up, was reduced from 3.25 kV at 50 Hz to 1.57 kV at 325 Hz. The efficiency has been increased from nearly zero at 50 Hz to 232.94 g/kW h at 200 Hz under applied voltage of 2.025 kV.
(Received March 20 2009)
(Accepted June 8 2009)
(Online publication September 17 2009)