Experimental observations of arc-anode attachment in steam-argon-air environment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F12%3A00439715" target="_blank" >RIV/61389021:_____/12:00439715 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/1742-6596/406/1/012009" target="_blank" >http://dx.doi.org/10.1088/1742-6596/406/1/012009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/406/1/012009" target="_blank" >10.1088/1742-6596/406/1/012009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental observations of arc-anode attachment in steam-argon-air environment

Popis výsledku v původním jazyce

DC arc plasma torches performance depends strongly on processes near anode. Arc-anode interaction not only defines lifetime of the electrode but also influences power distribution in the plasma and flow structure of the jet. This paper presents an experimental investigation of effects of gas properties and flow conditions on an arc-anode attachment. Several optical and electric diagnostic means were used to provide complex image of behaviour of the attachment and resulting state of anode surface.It is shown that even in one particular regime of the arc-anode attachment,which is called a restrike mode,dynamic behaviour and resulting erosion of anode can be significantly different.For example with argon in arc-anode gap the anode surface melt more intensively than with air environment.Despite increased melting weaker radiation of copper vapour was found in plasma.It was also shown that control of arc-anode attachment position in air environment had substantial effect on anode erosion

Název v anglickém jazyce

Experimental observations of arc-anode attachment in steam-argon-air environment

Popis výsledku anglicky

DC arc plasma torches performance depends strongly on processes near anode. Arc-anode interaction not only defines lifetime of the electrode but also influences power distribution in the plasma and flow structure of the jet. This paper presents an experimental investigation of effects of gas properties and flow conditions on an arc-anode attachment. Several optical and electric diagnostic means were used to provide complex image of behaviour of the attachment and resulting state of anode surface.It is shown that even in one particular regime of the arc-anode attachment,which is called a restrike mode,dynamic behaviour and resulting erosion of anode can be significantly different.For example with argon in arc-anode gap the anode surface melt more intensively than with air environment.Despite increased melting weaker radiation of copper vapour was found in plasma.It was also shown that control of arc-anode attachment position in air environment had substantial effect on anode erosion

Druh

D - Stať ve sborníku

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Journal of Physics: Conference Series

ISBN

—

ISSN

1742-6588

e-ISSN

—

Počet stran výsledku

9

Strana od-do

012009-012009

Název nakladatele

IOP Publishing Ltd

Místo vydání

Bristol

Místo konání akce

Bologna

Datum konání akce

24. 6. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000314395400010