Goal of the presented work is to explore the benefits from an inhomogeneous feed gas processing. A finite element model is utilized to simulate an inhomogeneous power induction along the ozone generator tube. The simulation yields the local power density, the local gas temperature gradient and a relative DBD packing density. Combined with experimental data, a sufficient set of information can be obtained to infer a strong correlation between electrode arrangement and generator characteristics. Therefore, several arrangements, evenly distributed within a given space, were designed, simulated, manufactured and tested on a representative scale.
An arrangement with pronounced power induction at the generator inlet manifests several advantages over homogeneous plasma processing arrangements. The degree of filamentation turns out to be decisive, indicating a new potential trough plasma tailoring. Increased robustness and substantial savings in electrical consumption were obtained on an industrial scale with more than one hundred square meters of active DBD area.