Project detail

Equilibrium, kinetics and diffusion in the switching arc

Duration: 01.01.1999 — 31.12.2001

Funding resources

Czech Science Foundation - Standardní projekty

- whole funder

On the project

Description in English
The aim of the project is to improve and create physical and mathematical models whose solution will vield new information, in particular about the composition of quenching medium in the high current arc and interaction intervals of the circuit breakingprocesses in HV circuit breakers. In the high current arc interval, when the state of local thermodynamic equilibrium can be expected, the composition and thermodynamic properties will be determined of the heterogeneous products of the reaction of SF6 with the material of the circuit breaker quenching chamber (C, Teflon, CaF2, Cu, W) and with moisture (H20).In the interaction interval a model will be proposed and solved of the kinetics of chemical reactions, and in the stabilized arc a model of the kinetics of chemical reactions with diffusion in the gaseous system of the products of SF6 dissociation and ionization at a given temperature drop from 12 000 K to ambient temperature. The solution of the models will include the calculation of chemical r

Mark

GA102/99/1499

Default language

Czech

People responsible

Coufal Oldřich, doc. RNDr., CSc. - principal person responsible

Units

Department of Electrical Power Engineering
- beneficiary (1999-01-01 - 2001-12-31)

Results

BARTLOVÁ, M. A Critical Analysis of the Dissociation-Recombination Reactions of Fluorine and Sulphur. In XIVth Symposium on Physics of Switching Arc, Proceedings, Vol.I.:Contributed Papers. Brno, Czech Republic: Dep. of Power Electrical and Electronic Engineering, FEECS TU Brno, 2001. p. 20 ( p.)ISBN: 80-214-1949-0.
Detail

BARTLOVÁ, M., COUFAL, O. Contribution to the Kinetic Modelling in SF6-Arc Plasma. In IXth International Conference of Switching Arc Phenomena, Proceedings. Lodz, Polsko: 2001. p. 94 ( p.)ISBN: 83-902688-9-2.
Detail

BARTLOVÁ, M., COUFAL, O. Comparison of Some Kinetic Models of SF6-Arc Plasma. In 15thInternational Symposium on Plasma Chemistry, Proceedings,Vol. III, Poster Contributions. Orléans, Francie: 2001. p. 759 ( p.)
Detail

BARTLOVÁ, M., COUFAL, O. To the Calculation of Kinetic Composition of SF6-Arc Plasma. In Nové trendy ve fyzice, 2.díl. Brno, Česká republika: VUT v Brně, FEI, Ústav fyziky, 2001. p. 246 ( p.)ISBN: 80-214-1992-X.
Detail

ŽIVNÝ, O.; CZERNEK, J. CCSD(T) calculations of vibrational frequencies and equilibrium geometries for the diatomics F-2, SF, and their ions. Chemical Physics Letters, 2004, vol. 308, no. 1-2, p. 165-168. ISSN: 0009-2614.
Detail

BARTLOVÁ, M. ELECTRON - ION RECOMBINATION IN DECAYING SF6 ARC PLASMA. High Temperature Material Processes: An International Journal, 1997, vol. 1(1997), no. 4, p. 511 ( p.)ISSN: 1093-3611.
Detail

BARTLOVÁ, M. The influence of nonequilibrium distribution function on values of reaction rate constants. Czechoslovak Journal of Physics, 2000, vol. 50, no. Suppl.S3, p. 289-292. ISSN: 0011-4626.
Detail

COUFAL, O., SEZEMSKÝ, P. On the formal correctness of the reaction kinetics model and its solution in HV circuit breakers after current zero. Journal of Physics D: Applied Physics, 2001, vol. 34 (2001), no. 14, p. 2174-2184. ISSN: 0022-3727.
Detail

ADAMEC, L., COUFAL, O. On kinetics of reactions in HV circuit breakers after current zero. Journal of Physics D: Applied Physics, 1999, vol. 32(1999), no. 14, p. 1702 ( p.)ISSN: 0022-3727.
Detail

BARTLOVÁ, M., AUBRECHT, V. Some Remarks to Calculation of Ionization and Recombination Coefficients in SF6 Arc Plasma. In Proceedings of XXIIIth International Conference on Phenomena In Ionized Gases. Vol. II. Toulouse, France: Universite Paul Sabatier, 1997. p. 80 ( p.)
Detail

Responsibility: Coufal Oldřich, doc. RNDr., CSc.