• DOI:10.2166/wst.2008.760
• Corpus ID: 12648625

Inhomogeneous feed gas processing in industrial ozone generation.

@article{Krogh2008InhomogeneousFG,
  title={Inhomogeneous feed gas processing in industrial ozone generation.},
  author={F. Krogh and Reto Merz and Rudolf Gisler and Marco M{\"u}ller and Bernhard Paolini and Jos{\'e} Luis Vicent L{\'o}pez and Alfred Freilich},
  journal={Water science and technology : a journal of the International Association on Water Pollution Research},
  year={2008},
  volume={58 11},
  pages={
          2077-82
        }
}

• F. Krogh, R. Merz, +4 authors A. Freilich
• Published 1 December 2008
• Engineering
• Water science and technology : a journal of the International Association on Water Pollution Research

The synthesis of ozone by means of dielectric barrier discharge (DBD) is extensively used in industry. Ozone generators available on the market differ in ozone production capacities, electrode arrangements and working parameters, but operate with a uniformly distributed filamentary discharge plasma pattern.In the presented work the benefits of inhomogeneous feed gas processing are explored. Causality between power induction, production efficiency and working parameters are investigated. Different electrode arrangements, evenly distributed within a given space parameter, were designed, simulated, manufactured and tested on a representative scale. A finite element model was utilized to simulate an inhomogeneous power induction pattern along the ozone generator tube. The simulation yielded the local power density, the local gas temperature gradient and the relative DBD packing density.Results show that the degree of filamentation turns out to be decisive, indicating a new potential by means of plasma tailoring. An arrangement with a pronounced power induction at the inlet of the ozone generator revealed several advantages over homogeneous plasma processing arrangements, for which an increase in robustness and a reduction in electrical power consumption are achieved.