| Project/Area Number |
12650273
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
電力工学・電気機器工学
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| Research Institution | Nagoya Institute of Technology |
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Principal Investigator |
OHE Kazuyuki Nagoya Institute of Technology, Professor, 工学部, 教授 (30024269)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2001: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2000: ¥2,300,000 (Direct Cost: ¥2,300,000)
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| Keywords | barrier discharge / atomospheric discharge / ozonizer / on-off modulation / spatial transfer of discharge / ozonizer / barrier discharge / thin gap parallel plate / high density ozone |
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| Research Abstract |
A conventional cylindrical barrier discharge was used to produce O_3. The discharge tube was 300mm in length and 20mm φ. Thin Al film covered over a glass-made dielectric with 1.0 mm in thiskness was used as the outer electrode. The discharge gap was 0.2 mm, inside of which was the inner electrode made of stainless steel tube. A continuous and on-off modulated power supply, of which frequency was 10 kHz was applied between the two electrode. O_2 gas about 1 atm pressure was fed to the discharge tube with 21min flow rate. For 3 ms on and 100 ms off, the yielding rate of O_3 was improved more than 20% compared with the continuous discharge, where the discharged power was kept at 0.2 W. A spatial transfer discharge system (the so-called relay system) using two discharge tubes above discribed was used to obtain more high O3 yielding rate. Two tubes were installed in parallel within a cylindrical stainless steel vessel. These two tubes were operated with the on-off power supply, while the on-off turning for the tubes was adjusted so as not to overlap each other. As the result, the O_3 yielding rate using the relay system was 2 times larger than that of one tube.
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