Journal
OZONE-SCIENCE & ENGINEERING
Volume 40, Issue 3, Pages 228-236Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01919512.2017.1415132
Keywords
Dielectric Barrier Discharge; O-2 Conversion; Ozone Production
Categories
Funding
- National Natural Science Foundation of China [51422605]
- Zhejiang Provincial Natural Science Foundation [LR16E060001]
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This paper describes the influence of gas pressure on the conversion of O-2 to O-3 and the ozone production efficiency in a multichannel dielectric barrier discharge (DBD) reactor utilizing positive and negative pulses. Results show that conversion of O-2 to O-3 is continuously enhanced by the increase of gas pressure (0.1-0.24 MPa) while the rising speed of oxygen conversion with the increasing gas pressure at fixed specific input energy is reduced above 0.15 MPa. The maximum ozone generation efficiency is increased with increasing gas pressure (0-0.2 MPa) while positive pulse exhibits higher energy efficiency. The maximum ozone generation efficiency is suppressed with further increase of gas pressure (0.2-0.24 MPa) while no significant difference in ozone generation efficiency is observed for two unipolar pulse modes. Results also show that 0.2 MPa is the optimal working gas pressure to obtain the maximum ozone generation efficiency and increasing gas pressure would lead to remarkable increase of ozone generation efficiency for ozone production at high energy densities in multichannel DBD.
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