Title :
Physico-chemical modeling of corona discharge in SF6
Author :
Pontiga, F. ; Fernandez-Rueda, A. ; Soria, C. ; Castellanos, A.
Author_Institution :
Dpto. de Fisica Aplicada II, Seville Univ., Spain
Abstract :
Negative corona discharge in SF6 is simulated by using a model that combines both the physical and chemical aspects of the problem. The corona discharge is assumed to occur inside a wire-to-cylinder reactor filled with pure SF6 at atmospheric pressure and ambient temperature. The chemical model of the corona includes both elementary plasma processes and chemical reactions between molecules and radicals. As result of the simulation, the radial distribution of electrons, ions and neutral species are predicted as a function of the applied voltage and current intensity.
Keywords :
Poisson equation; corona; free radical reactions; ion-molecule reactions; plasma chemistry; reaction kinetics theory; sulphur compounds; Poisson´s equation; SF6; ambient temperature; atmospheric pressure; boundary conditions; charged species; chemical kinetics model; chemical model; chemical reactions; current intensity; elementary plasma processes; ion-drift region; ion-radical reactions; negative corona discharge; neutral species; physicochemical modeling; radial distributions; wire-to-cylinder reactor; Atmospheric modeling; Atmospheric-pressure plasmas; Chemical elements; Chemical processes; Corona; Inductors; Plasma chemistry; Plasma simulation; Plasma temperature; Predictive models;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2003. Annual Report. Conference on
Print_ISBN :
0-7803-7910-1
DOI :
10.1109/CEIDP.2003.1254888
