Calculation of Electron and Heavy Particle Temperature of Arc with Lateral Gas

カテゴリ: 研究会(論文単位)

論文No: EPP19084

グループ名: 【A】基礎・材料・共通部門 放電・プラズマ・パルスパワー研究会

発行日: 2019/07/24

タイトル(英語): Calculation of Electron and Heavy Particle Temperature of Arc with Lateral Gas

著者名: Yusuke Nemoto(Tokyo City University),Zhenwei Ren(Tokyo City University),Yoshifumi Maeda(Tokyo City University),Toru Iwao(Tokyo City University)

著者名(英語): Nemoto Yusuke(Tokyo City University),Ren Zhenwei(Tokyo City University),Maeda Yoshifumi(Tokyo City University),Iwao Toru(Tokyo City University)

キーワード: ｃｉｒｃｕｉｔ　ｂｒｅａｋｅｒｓ|ｅｌｅｃｔｒｏｎ　ｔｅｍｐｅｒａｔｕｒｅ|ｈｅａｖｙ　ｐａｒｔｉｃｌｅ　ｔｅｍｐｅｒａｔｕｒｅ|ｃｈｅｍｉｃａｌ　ａｎｄ　ｔｈｅｒｍａｌ　ｎｏｎ－Ｅｑｕｉｌｉｂｒｉｕｍ|ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ　ｔｈｅｒｍａｌ　ｆｌｕｉｄ　ｓｉｍｕｌａｔｉｏｎ|circuit breakers|thermal non-equilibrium|electron temperature|heavy particle temperature|3-D electromagnetic thermal fluid simulation

要約(日本語): Circuit breakers are required to provide reliable current interruption.As this countermeasure, it is reported that the decrement of the arc conductance contributes to the current interruption at the current zero point.However, the physical phenomenon of current interruption is micro order and temperature distribution and flow velocity distribution change sharply.For this reason, it is difficult to elucidate the decrement of electrical conductivity with the experiment.Thus, the numerical analysis is useful to elucidate the physical phenomena of current interruption.In this paper, the electron and heavy particle temperature is calculated with lateral gas.Specifically, the energy conservation equation of electron and heavy particle were divided and analyzed.As a result, the portions of thermal non-equilibrium increase with increasing lateral gas.This is because that the heavy particle temperature is blown downwind.On the other hand, the electron temperature remains between the electrodes.It is suggested that the heavy particle temperature is dominated by convection and the electron temperature are not dominated by convection.Therefore, the difference between the electron and the heavy particle temperature is revealed.

要約(英語): Circuit breakers are required to provide reliable current interruption.As this countermeasure, it is reported that the decrement of the arc conductance contributes to the current interruption at the current zero point.However, the physical phenomenon of current interruption is micro order and temperature distribution and flow velocity distribution change sharply.For this reason, it is difficult to elucidate the decrement of electrical conductivity with the experiment.Thus, the numerical analysis is useful to elucidate the physical phenomena of current interruption.In this paper, the electron and heavy particle temperature is calculated with lateral gas.Specifically, the energy conservation equation of electron and heavy particle were divided and analyzed.As a result, the portions of thermal non-equilibrium increase with increasing lateral gas.This is because that the heavy particle temperature is blown downwind.On the other hand, the electron temperature remains between the electrodes.It is suggested that the heavy particle temperature is dominated by convection and the electron temperature are not dominated by convection.Therefore, the difference between the electron and the heavy particle temperature is revealed.

原稿種別: 英語

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