A Novel Generation Method of Dielectric Barrier Discharge and Ozone Production Using a Piezoelectric Transformer

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  • Teranishi Kenji
    Department of Electrical, Electronic and Computer Engineering, Chiba Institute of Technology
  • Suzuki Susumu
    Department of Electrical, Electronic and Computer Engineering, Chiba Institute of Technology
  • Itoh Haruo
    Department of Electrical, Electronic and Computer Engineering, Chiba Institute of Technology

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  • Novel Generation Method of Dielectric Barrier Discharge and Ozone Production Using a Piezoelectric Transformer

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A novel generation method of a dielectric barrier discharge (DBD) using a piezoelectric transformer (PT) is proposed. Spatio-temporal variations of microdischarges were investigated and discussed on the basis of the observations using a charge-coupled device (CCD) camera. As an example of a practical application of the DBD to a plasma reactor, an ozonizer using the PT was developed and ozone productions were performed in air and oxygen. Maximum ozone concentrations of 3.38 and 20.3 g/Nm3 were obtained in air and oxygen, respectively. The ozonizer can be designed in a compact configuration and driven with low applied voltages because the PT serves as both a high-voltage generator and a discharge electrode.

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