Modelling of streamer propagation in dielectric liquids using a dense gas model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00327223" target="_blank" >RIV/68407700:21220/18:00327223 - isvavai.cz</a>

Výsledek na webu

<a href="http://ocs.ciemat.es/EPS2018PAP/pdf/P4.3007.pdf" target="_blank" >http://ocs.ciemat.es/EPS2018PAP/pdf/P4.3007.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modelling of streamer propagation in dielectric liquids using a dense gas model

Popis výsledku v původním jazyce

Ultrafast electrical breakdown in dielectric liquids is of considerable interest for applications in high-voltage insulation. For liquids with high mobility of charged particles, the breakdown takes place on a nanosecond time scale, and its mechanism is similar to the streamer breakdown of gases which is caused by the electron impact ionization of particles, with a distinction that the electron–ion recombination in the streamer channel plays a significant role compared to streamers in gases. Also very high-voltage pulses of sub-ns duration provide an extremely high electrical field in the plasma formation region in the liquid and allow ionization directly in the condensed phase by direct electron impact. Thanks to the sub-nanosecond time scale, the fluid lacks time to expand, and so the discharge is formed directly in the liquid phase. In this contribution we present a study of positive streamer dynamics in dielectric liquid using a dense gas mode.

Název v anglickém jazyce

Modelling of streamer propagation in dielectric liquids using a dense gas model

Popis výsledku anglicky

Ultrafast electrical breakdown in dielectric liquids is of considerable interest for applications in high-voltage insulation. For liquids with high mobility of charged particles, the breakdown takes place on a nanosecond time scale, and its mechanism is similar to the streamer breakdown of gases which is caused by the electron impact ionization of particles, with a distinction that the electron–ion recombination in the streamer channel plays a significant role compared to streamers in gases. Also very high-voltage pulses of sub-ns duration provide an extremely high electrical field in the plasma formation region in the liquid and allow ionization directly in the condensed phase by direct electron impact. Thanks to the sub-nanosecond time scale, the fluid lacks time to expand, and so the discharge is formed directly in the liquid phase. In this contribution we present a study of positive streamer dynamics in dielectric liquid using a dense gas mode.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10102 - Applied mathematics

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Europhysics Conference Abstracts Vol. 42A

ISBN

9781510868441

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

1360-1363

Název nakladatele

European Physical Society

Místo vydání

Mulhouse

Místo konání akce

Praha

Datum konání akce

2. 7. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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