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Anode Processes in DC Arc Plasma Torches

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    0088843 - ÚFP 2008 RIV EG eng C - Conference Paper (international conference)
    Hrabovský, Milan
    Anode Processes in DC Arc Plasma Torches.
    [Anodové procesy v plazmatronech s elektrickým obloukem.]
    International Round Table on Thermal Plasma Applications. Sharm el Sheikh: University Sherbrooke, Canada, 2007 - (Boulos, M.; Heberlein, J.; Fauchais, P.), s. 1-2
    [International Round Table on Thermal Plasma Applications. Sharm El Sheikh (EG), 14.01.2007-18.01.2007]
    R&D Projects: GA ČR GA202/05/0669
    Institutional research plan: CEZ:AV0Z20430508
    Keywords : Electric arc * electrode processes * plasma torches
    Subject RIV: BL - Plasma and Gas Discharge Physics

    The paper gives survey of experimental investigations of anode phenomena in water and gas/water torches with external disk anode. The experiments involved high-speed photography, electric probe diagnostics, fast photodiode recording of light fluctuations and emission spectroscopy of the anode region of the arc. Mechanisms determining position of the anode attachment, its movement, initiation of the restrike process as well as an effect of anode phenomena on plasma flow instability are discussed on the basis of experimental results.

    Článek podává souhrn experimentálních výsledků studia anodových procesů v plazmatronech s vodní a kombinovanou stabilizací oblouku. Experimenty zahrnovaly vysokorychlostní fotografii, diagnostiku elektrickými sondami, záznamy fluktuací vysokofrekvenčními fotodiodami a emisní spektroskopii. Byl analyzován pohyb anodové skvrny a jeho vliv na stabilitu proudění plazmatu.
    Permanent Link: http://hdl.handle.net/11104/0150239

     
     
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