A new double surface dielectric barrier discharge reactor to improve ozone generation efficiency

Abstract

A new electrode structure was proposed to form two mesh electrodes on the surface of the enameled steel plate and to use a high voltage electrode and a grounded electrode. The surface dielectric barrier discharge was simultaneously occurred at both mesh electrodes, thus improving ozone generation efficiency. The electric field analysis results show that the electric field intensities are almost the same at both electrodes. Aluminum dissipator attached to the steel plate can effectively suppress the temperature rise in the discharge gap to ensure the long-term operation. The influence of the main parameters such as discharge gap, discharge energy density, etc. was investigated to design a suitable discharge reactor. The discharge reactor can achieve ozone concentration of 35–79 g/Nm³ with ozone yield of 332–206 g/kWh.