Original title: Effect of arc-anode attachment on thermal plasma jet
Translated title: Vliv připojeni oblouku k anodě na proud termického plazmatu
Authors: Chumak, Oleksiy ; Kavka, Tetyana ; Hrabovský, Milan
Document type: Papers
Conference/Event: Week of Doctoral Students 2007, Praha (CZ), 2007-06-05 / 2007-06-08
Year: 2007
Language: eng
Abstract: [eng] [cze]
The paper examines an effect of an argon amount on the thermal plasma jet generated from water/argon mixture in a dc arc plasma torch. In spite of an increase of plasma velocity with an addition of argon a decrease of plasma jet length is observed for bigger argon amount in the plasma. The investigation was based on an analysis of a jet structure based on imaging of the plasma jet by a CCD camera. Statistical processing of plasma jet photographs provided information about a jet shape and its fluctuations space distribution. It was found that an argon amount increase caused significant intensification of the plasma jet fluctuations. Práce se zabývá výzkumem vlivu anodového připojeni oblouku na proud termického plazmatu generovaného ze směsi vody a argonu v obloukovým plazmatronu. Analýza struktury plazmatického paprsku je založena na fotografických obrazcích proudu plazmatu pomoci rychlostní kamery. Bylo zjištěno že zvýšeni intenzity interakce oblouku z anodou vede k zesílení kmitu a nestabilit prouděni plazmatu.
Keywords: anode attachment; arc plasma torch; plasma jet
Project no.: CEZ:AV0Z20430508 (CEP), GA202/05/0669 (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of the 16th Annual Conference of Doctoral Students - WDS 2007 , ISBN 978-80-7378-024-1

Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0150238

Permalink: http://www.nusl.cz/ntk/nusl-37619


The record appears in these collections:
Research > Institutes ASCR > Institute of Plasma Physics
Conference materials > Papers