2026-03-08T04:11:25Z https://kanazawa-u.repo.nii.ac.jp/oai

oai:kanazawa-u.repo.nii.ac.jp:00009198 2024-06-20T06:14:58Z 934:935:936

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 Investigation on Effective Ionization Coefficient and Critical Electric Field in Air in Temperature Range of 300–3500K by Solving Boltzmann Equation Tanaka, Yasunori Sakuta, Tadahiro Shibuya, Masatoyo 90303263 田中, 康規 80135318 作田, 忠裕 渋谷, 正豊 Copyright © Institute of Electrical Engineers of Japan 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 ᾱ was derived from the EEDF obtained. The critical reduced electric field strength (E/N)cr, which gives zero effective ionization coefficient ᾱ = 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. © 2003, The Institute of Electrical Engineers of Japan. All rights reserved. 出版者照会後に全文公開 Institute of Electrical Engineers of Japan = 電気学会 2003-01-01 2019-05-24 jpn journal article VoR https://doi.org/10.24517/00009185 http://hdl.handle.net/2297/47180 https://kanazawa-u.repo.nii.ac.jp/records/9198 10.24517/00009185 10.1541/ieejpes.123.1380 https://www.jstage.jst.go.jp/browse/ieejpes http://www.iee.jp/ AN10136334 0385-4213 IEEJ Transactions on Power and Energy = 電気学会論文誌Ｂ（電力・エネルギー部門誌） 123 11 1380 1386 https://kanazawa-u.repo.nii.ac.jp/record/9198/files/TE-PR-TANAKA-Y-1380.pdf application/pdf 1.4 MB 2019-05-24