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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Print: 1093-3611
ISSN Online: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

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.