NDLI: PPPS-2013: Increase in input power and change of streamer length during rotation of electrode

Content Provider	IEEE Xplore Digital Library
Author	Gnapowski, S. Akiyama, H. Yamabe, C.
Copyright Year	2013
Description	Author affiliation: Grad. Sch. of Sci. & Technol., Kumamoto Univ., Kumamoto, Japan (Gnapowski, S.; Akiyama, H.) \|\| Dept. of Electr. & Electron. Eng., Saga Univ., Saga, Japan (Yamabe, C.)
Abstract	An increase in ozone production efficiency is sought by scienti sts due to the important role ozone plays in improving the human environment such as maintaining higher water and air quality. Ozonizers with electrode rotating systems are a possible way to increase ozone synthesis efficiency. Important question sare why rotating electrodes increase ozone concentration and how they can be controlled. Phenomena determining the increase of ozone concentration must be identi fied. In our case, a gold rotating electrode was used to eliminate surface oxidation effect. The oxygen flow rate was 0.5 l/min, applied voltage 10 kV (peak to peak), and frequency about 12 kHz. Ozone concentration increased to about two times higher than that of the case with a non-rotation. In addition, input power and discharge area were found to increase with rotating speed. Both ozone concentration and ozone production efficiency improved with the use of a rotating electrode compared to t h a t with a non-rotating electrode. One reason may be the increase of discharge length of micro-discharges during electrod e rotation. Discharge streamer changed in both shape and length, with the length increasing 10-20%. The produced ozone increased with increa sing electrode rotation speed, and the efficiency of ozone production improved by 30 % by rotation. In addition, the discharge area became more intense and ozone concentration increased with rotation. When micro-discharges become longer during rotation, generating an increased number of collisions becomes possible, leading to higher ozone concentration; this is also be expected to lead to higher efficiency of ozone generation.
Starting Page	1
Ending Page	1
File Size	130011
Page Count	1
File Format	PDF
ISBN	9781467351713
ISSN	07309244
DOI	10.1109/PLASMA.2013.6634833
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gases Electrodes Discharges (electric) Educational institutions Production Corona Gold
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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