DocumentCode :
1709336
Title :
Development of ozone generating method derived from ozone composing mechanism on surface of electrodes using dielectric discharge
Author :
Murai, A. ; Tahara, N.
Author_Institution :
Power Eng. R & D Center, Kansai Electr. Power Co. Inc., Kyoto, Japan
Volume :
1
fYear :
2005
Firstpage :
81
Abstract :
During the production of ozone using needle & plate electrodes and a DC current in 99.5% oxygen, we noticed that the concentration of ozone decreased to 0 after several months in which the electrical discharge had produced ozone. The concentration of ozone increased due to the addition of nitrogen into a gas-mixing chamber located behind an electrical discharge. The concentration of ozone increased due to the addition of heat-energy to an anode located in an electrical discharge. The controlled heating cycles showed a change in the density of nitrogen on the surface of the anode. Simulations confirmed this pattern. We used an industrial ozone generator that consisted of ceramic dielectrics and a titanium expanded metal electrode. A change in the temperature of the cooling water led to the characteristic of ozone concentration making a linear line. It follows the formula of van´t Hoff. The generator was supplied with 99% oxygen gas and produced ozone. The concentration of ozone increased from 98 g/m3 to 120 g/m3 under the same conditions. After reaching its peak, the concentration of ozone decreased to zero. Afterward, we produced ozone which was over 20% higher in concentration than primary state ozone due to change in the third element from nitrogen to antimony.
Keywords :
adsorption; anodes; antimony; discharges (electric); nitrogen; oxygen; ozone; plasma applications; plasma-wall interactions; N; O3; Sb; Ti; anode; ceramic dielectrics; cooling water; dielectric discharge; electrical discharge; electrode surface; gas-mixing chamber; heat-energy; heating cycles; industrial ozone generator; needle & plate electrodes; nitrogen addition; nitrogen density; ozone composing mechanism; ozone concentration; ozone generating method; titanium expanded metal electrode; vant Hoff formula; Anodes; Dielectrics; Electrodes; Fault location; Needles; Nitrogen; Production; Resistance heating; Surface discharges; Temperature control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on
Print_ISBN :
4-88686-063-X
Type :
conf
DOI :
10.1109/ISEIM.2005.193331
Filename :
1496052
Link To Document :
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