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Chemically non-equilibrium model of decaying N2 arcs in a model circuit breaker
http://hdl.handle.net/2297/45477
http://hdl.handle.net/2297/45477685ec57a-a8aa-4347-9fe3-0b9c9a80a35e
名前 / ファイル | ライセンス | アクション |
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TE-PR-TANAKA-Y-40.pdf (757.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Chemically non-equilibrium model of decaying N2 arcs in a model circuit breaker | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Sun, Hao
× Sun, Hao× Tanaka, Yasunori× Rong, Mingzhe× Uesugi, Yoshihiko× Ishijima, Tatsuo |
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書誌情報 |
2015 3rd International Conference on Electric Power Equipment - Switching Technology, ICEPE-ST 2015 号 7368385, p. 40-45, 発行日 2015-10-25 |
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ISBN | ||||||
識別子タイプ | ISBN | |||||
関連識別子 | 978-146737414-9 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1109/ICEPE-ST.2015.7368385 | |||||
出版者 | ||||||
出版者 | Institute of Electrical and Electronics Engineers Inc. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Nitrogen gas has been investigated as one of the candidate substitutes for SF6 in a high-voltage circuit breaker (HVCB) and also in a low-voltage interrupter. In this paper, a chemically non-equilibrium model was established to investigate N2 arc plasmas in the decaying phase during current interruption in a model circuit breaker. Unlike the conventional model assuming local thermodynamic equilibrium, i.e. both chemical equilibrium and thermal equilibrium, in this work a chemically non-equilibrium model was developed for N2 arc plasmas. Thermal non-equilibrium effects were neglected, meaning a one-temperature model was adopted. The developed model took into account 5 species such as N2, N, N2+, N+ and e-, and 22 chemical reactions including electron impact ionizations, heavy particles impact dissociations and their backward reactions. Temperature dependent reaction rates were used for all considered reactions. The species composition in N2 arc plasma was calculated by solving the mass conservation equation of each species considering diffusion, convection and reaction effects. Then the influence of the chemically non-equilibrium composition on the arc behavior was calculated by updating the thermodynamic and transport properties at each iterative step. Finally, for the decaying N2 arc plasma under a free recovery phase, the time evolutions were derived in the profiles of the temperature and the number densities for each species. The results in this work were compared with the calculated results based on the chemical equilibrium assumption. © 2015 IEEE. | |||||
権利 | ||||||
権利情報 | Copyright © IEEE | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |