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高温材料处理:国际期刊
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN 打印: 1093-3611
ISSN 在线: 1940-4360

高温材料处理:国际期刊

DOI: 10.1615/HighTempMatProc.v1.i4.90
pages 511-523

ELECTRON-ION RECOMBINATION IN DECAYING SF6 ARC PLASMA

Milada Bartlova
Brno University of Technology, Technicka 8, 616 00 Brno

ABSTRACT

In this paper the modified diffusion approximation is used for calculation of recombination and ionization coefficients of atoms S and F. The influence of radiative processes and atom-atom collisions is studied. The coefficients were computed in conditions of decaying SF6 arc plasma in temperature range T ∈(2500,20000) K for two different pressures p = 0.1 MPa and p = 1.0 MPa. Results will be used in calculation of nonequilibrium composition of the system of products of SF6 decomposition in switching arc of HV circuit breakers.