Investigation on Effective Ionization Coefficient and Critical Electric Field in Air in Temperature Range of 300-3500 K by Solving Boltzmann Equation
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- Tanaka Yasunori
- Department of Electrical and Electronic Engineering, Kanazawa University
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- Sakuta Tadahiro
- Department of Electrical and Electronic Engineering, Kanazawa University
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- Shibuya Masatoyo
- Central Research Institute of Electric Power Industry
Bibliographic Information
- Other Title
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- ガス温度300-3500Kにおける空気の実効電離係数と臨界電界の数値解析的検討
- ガス オンド 300 3500K ニ オケル クウキ ノ ジッコウ デンリ ケイスウ ト リンカイ デンカイ ノ スウチ カイセキテキ ケントウ
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Abstract
The present paper describes a prediction method of the dielectric strength of the air in gas temperature range of 300—3500K. First, the equilibrium composition of the air at gas temperatures of 300—3500K was calculated through Saha and Guldburg-Waage equations. Secondly, the electron energy distribution function (EEDF) was calculated by an adoption of the two-term expansion of Boltzmann equation. Finally, the effective ionization coefficient α was derived from the EEDF obtained. The critical reduced electric field strength (E/N)cr, which gives zero effective ionization coefficient α=0, was obtained at gas temperatures of 300—3500K. The result indicates that (E/N)cr decreases as the gas temperature increases from 1500K to 3500K, which is due mainly to an increase in the mole fraction of NO molecule which has a much lower ionization potential compared with N2 and O2. This calculated result fairly agrees with an experimental one.
Journal
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- IEEJ Transactions on Power and Energy
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IEEJ Transactions on Power and Energy 123 (11), 1380-1386, 2003
The Institute of Electrical Engineers of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679578529280
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- NII Article ID
- 10012556140
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- NII Book ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL BIB ID
- 6751379
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed