Evaporation Dominated High Current Arcs in Narrow Channels
- 1 May 1978
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-97 (3) , 950-958
- https://doi.org/10.1109/tpas.1978.354568
Abstract
High current density (> 10 A mm-2) arcs in channels of solid material are determined by (i) arc induced evaporation of wall material, (ii) axial convection, and (iii) radiative energy transfer. Based on these processes, an integral arc model is developed from first principles that relates the arc characteristics to the arc current, the channel geometry, and the properties of the channel material. The model is shown to agree satisfactorily with measurements. For engineering applications approximate scaling laws are derived for the arc field strength, the pressure in the channel and the wall evaporation rate.Keywords
This publication has 8 references indexed in Scilit:
- Die Erniedrigung der Ionisationsenergie des C II-Ions in einem HochdruckplasmaZeitschrift für Naturforschung A, 1974
- Investigation of a cylindrical, axially blown, high-pressure arcJournal of Physics D: Applied Physics, 1974
- Radiative energy balance in cylindrical nitrogen arcsJournal of Quantitative Spectroscopy and Radiative Transfer, 1972
- The high-power constricted plasma discharge column II. Experimental investigationJournal of Physics D: Applied Physics, 1971
- The high-power constricted plasma discharge column I. Theoretical analysisJournal of Physics D: Applied Physics, 1970
- Measurements of Electrical and Thermal Conductivity of Hydrogen, Nitrogen, and Argon at High TemperaturesPhysics of Fluids, 1970
- An ablation-type plasma generatorJournal of Spacecraft and Rockets, 1965
- Ein zylindrischer Bogen für hohe LeistungenZeitschrift für Naturforschung A, 1956