Temperature and pressure effects on positive streamers in air

Autor:	Ajm Guus Pemen, T Tom Huiskamp, van Ejm Bert Heesch, Fjcm Frank Beckers, Wflm Wilfred Hoeben
Přispěvatelé:	Electrical Energy Systems, Power Conversion
Rok vydání:	2013
Předmět:	Acoustics and Ultrasonics Atmospheric pressure Chemistry Plasma energy Analytical chemistry Plasma Conductivity Condensed Matter Physics Corona Surfaces Coatings and Films Electronic Optical and Magnetic Materials Temperature and pressure Physics::Plasma Physics Atomic physics
Zdroj:	Journal of Physics D: Applied Physics, 46(16):165202, 165202-1/9. Institute of Physics
ISSN:	1361-6463 0022-3727
DOI:	10.1088/0022-3727/46/16/165202
Popis:	In this paper we investigate temperature and pressure effects on the properties of a positive pulsed streamer plasma. We use a corona plasma setup in which we vary the temperature between 303 and 773K at atmospheric pressure and the pressure between 37.9 and 100 kPa at room temperature to achieve the same neutral gas density and compare electrical and optical (ICCD imaging) measurements carried out in both experiments. From the measurements we found that the dissipated plasma energy and the average streamer propagation velocity are both higher for the temperature experiments at the same neutral gas densities as in the pressure experiments. This suggests the existence of a specific temperature effect. A possible explanation for this effect is a higher streamer conductivity at high temperatures, as was previously found in the literature.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6586c1766fc92288022b4f1c0fb20acf https://doi.org/10.1088/0022-3727/46/16/165202 Zobrazit plný text záznamu