Název:
Measuring of Mean Plasma Electrical Conductivity in Anode Area of Plasma Torches with an External Anode
Autoři:
Ondáč, Peter ; Mašláni, Alan ; Hrabovský, Milan Typ dokumentu: Příspěvky z konference Konference/Akce: WDS´2017 - 26th Annual Student Conference Week of Doctoral Students 2017 /26./, Prague (CZ), 20170606
Rok:
2017
Jazyk:
eng
Abstrakt: We developed a non-intrusive direct procedure of measuring an average electrical conductivity of a plasma volume in hot anode areas of those plasma torches. For our measurements, we used a high-speed camera, a high-voltage probe, and a hybrid water–argon plasma torch. The measurements were made for various values of ambient pressure, arc electric current, and argon flow rate. The measured plasma conductivity is in agreement with a model, camera observations and indirectly also with spectroscopy measurements. The procedure provides missing experimental data on the average plasma electrical conductivity and estimates average plasma temperature in the anode areas. The procedure can be theoretically used in every plasma torch where the anode arc attachment movement can be observed during a restrike process\n
Klíčová slova:
Anode area; DC arc plasma torch; Plasma electrical conductivity Číslo projektu: GA15-19444S (CEP), GC17-10246J (CEP) Poskytovatel projektu: GA ČR, GA ČR Zdrojový dokument: Proceedings of the 26th Annual Student Conference Week of Doctoral Students 2017 - WDS 2017, ISBN 978-80-7378-356-3 Poznámka: Související webová stránka: http://www.mff.cuni.cz/veda/konference/wds/proc/proc-contents.php?year=2017
Instituce: Ústav fyziky plazmatu AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0281709