High Temperature Properties of CO₂ Gas Mixture with O₂ and HFO-1234yf Decompositions : Predominant Molecular Products and Critical Electric Field Strength at 300-3000 K

• Yokomizu Yasunobu

  Department of Electrical Engineering, Nagoya University

• Kodama Naoto

  Department of Electrical Engineering, Nagoya University

• Sugita Takehiro

  Department of Electrical Engineering, Nagoya University

• Ishii Tatsuya

  Department of Electrical Engineering, Nagoya University

• Sato Motohiro

  Department of Electrical Engineering, Nagoya University Advanced Technology R&D Center, Mitsubishi Electric Corp.

• Nakamura Yasunori

  Advanced Technology R&D Center, Mitsubishi Electric Corp.

書誌事項

タイトル別名

• High Temperature Properties of CO₂ Gas Mixture with O₂ and HFO-1234yf Decompositions: Predominant Molecular Products and Critical Electric Field Strength at 300-3000 K

抄録

The gases used in high voltage electric power equipment are required to withstand against an externally applied electric field strength. It is therefore essential to find out the electrical insulation strength of the gas. However the high temperature gas formed after the current zero through the arc extinction process in a circuit breaker shows different insulation strengths from that at room temperature, because the high temperature gas consists of various molecular products different from the original gas at room temperature. The CF₃CFCH₂ (called as HFO-1234yf) at room temperature is known to have a remarkable electrical insulation property similar to SF₆. After describing the products generated in CO₂ gas mixture with O₂ and HFO-1234yf decompositions at temperatures below 3000K, this paper mentions dielectric breakdown properties of the mixtures in view of the molar fractions of the molecular products. Discussions are furthermore made to compare dielectric breakdown properties of CO₂ gas and CO₂/O₂ gas mixture at high temperatures.

収録刊行物

• 電気学会論文誌Ｂ（電力・エネルギー部門誌）

  電気学会論文誌Ｂ（電力・エネルギー部門誌） 141 (11), 700-711, 2021-11-01

  一般社団法人 電気学会

キーワード

• substitute for SF₆
• CO₂
• HFO-1234yf
• molecular product
• dielectric breakdown property

詳細情報

• CRID: 1390571395579832320
• NII論文ID: 130008110177
• NII書誌ID: AN10136334
• DOI: 10.1541/ieejpes.141.700
• ISSN: 13488147
• ISSN: 03854213
• NDL書誌ID: 031819781
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I031819781
• Web Site: https://www.jstage.jst.go.jp/article/ieejpes/141/11/141_700/_pdf
• 本文言語コード: en
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