Composition and transport properties of SF6and their use in a simplified enthalpy flow arc model
- 1 April 1971
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IEEE
- Vol. 59 (4) , 474-485
- https://doi.org/10.1109/proc.1971.8206
Abstract
The equilibrium composition of SF6was calculated for temperatures from 1000 to 45 000°K and for pressures from 1 to 16 atm. The usual thermodynamic functions and transport properties were also computed. Considering the arc column in axially flowing gas as a plasma generator, the power balance and momentum conservation equations are formulated and solved with certain simplifying assumptions. The solution gives the developing flow and electrical parameters as a function of distance along the nozzle. Arc voltages are predicted which agree with available data. Clarification is given on two processes contributing to dielectric recovery: axial sweeping away of the arc channel, and its conductance decay by thermal diffusivity, during the current fall approaching current zero.Keywords
This publication has 11 references indexed in Scilit:
- Prüfung der Plasmaentmischung und Bestimmung einiger Materialfunktionen von Schwefelhexafluorid mittels Temperaturmessungen am 100 A-KaskadenbogenThe European Physical Journal A, 1968
- Berechnung der Gaszusammensetzung und der Materialfunktionen von SF6The European Physical Journal A, 1967
- Composition and properties of a sulphur hexafluoride arc plasmaBritish Journal of Applied Physics, 1967
- Single- and Double-Quantum Photodetachment of Negative IonsPhysical Review B, 1967
- ber die experimentelle Bestimmung der W rmeleitf higkeit und der elektrischen Leitf higkeit von Wasserstoff und Schwefelhexafluorid im elektrischen LichtbogenThe European Physical Journal A, 1966
- Charge Exchange between Gaseous Ions and AtomsThe Journal of Chemical Physics, 1962
- Chemical Equilibrium in Complex MixturesThe Journal of Chemical Physics, 1958
- A Study of the Dynamic Response of Arcs in Various GasesTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1958
- Thermal Conductivity of Gas Mixtures in Chemical EquilibriumThe Journal of Chemical Physics, 1957
- Displacement and Diffusion in Fluid-Flow Arc ExtinctionTransactions of the American Institute of Electrical Engineers, 1941