High-Temperature Properties of CO2 Mixed with N2―Comparison to CO2 Mixture with O2―

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2013/11/01

タイトル(英語): High-Temperature Properties of CO2 Mixed with N2―Comparison to CO2 Mixture with O2―

著者名: Yasunobu Yokomizu (Department of Electrical Engineering and Computer Science, Nagoya University), Yasuhiro Hayashi (Department of Electrical Engineering and Computer Science, Nagoya University), Toshiro Matsumura (Department of Electrical Engineering and

著者名(英語): Yasunobu Yokomizu (Department of Electrical Engineering and Computer Science, Nagoya University), Yasuhiro Hayashi (Department of Electrical Engineering and Computer Science, Nagoya University), Toshiro Matsumura (Department of Electrical Engineering and Computer Science, Nagoya University), Amane Majima (Toshiba Corporation), Toshiyuki Uchii (Toshiba Corporation), Katsumi Suzuki (Toshiba Corporation)

キーワード: interrupting arc，quenching gas，CO2-N2 mixture，CO2-O2 mixture，high-temperature properties

要約(英語): Concerning CO2 and its mixture with N2 at a concentration of 0.2, an enthalpy h, a specific heat CP, an electrical conductivity σ and a thermal conductivity κ at temperatures of 300-20,000K were obtained to find out effect of N2 addition on these high-temperature properties. For comparison, similar determination was also performed for CO2-O2 mixture. Admixing N2 and O2 with CO2 proved to result in significant variation in CP and κ in a temperature range from 5,000 to 10,000K. The temperature reduction factor was furthermore derived to find out the property as the arc-quenching gas. This evaluation led to the suggestion that adding N2 to CO2 achieves rapid decay in an interrupting arc temperature in a range from 7,000 to 11,000K, while admixing O2 with CO2 produces rapid diminishing effect on the interrupting arc temperature in a range from 5,000 to 9,000K. An attribution analysis successfully gave the fact that these effects on rapid decay in the temperature arise from variation in CP due to N2 and O2 additions, furthermore from the reactions 2N⇔N2 and C+O⇔ CO.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.133 No.11 （2013） 特集：開閉保護技術

本誌掲載ページ: 867-874 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/133/11/133_867/_article/-char/ja/