On spatial stabilization of dielectric barrier discharge microfilaments by residual heat build-up in air

RÁHEĽ, Jozef, Zsolt SZALAY, Jan ČECH and Tomáš MORÁVEK. On spatial stabilization of dielectric barrier discharge microfilaments by residual heat build-up in air. The European Physical Journal D. 2016, vol. 70, No 4, p. "nestrankovano", 7 pp. ISSN 1434-6060. Available from: https://dx.doi.org/10.1140/epjd/e2016-70061-5.

Basic information

• Original name: On spatial stabilization of dielectric barrier discharge microfilaments by residual heat build-up in air
• Authors: RÁHEĽ, Jozef (703 Slovakia, guarantor, belonging to the institution), Zsolt SZALAY (703 Slovakia), Jan ČECH (203 Czech Republic, belonging to the institution) and Tomáš MORÁVEK (703 Slovakia, belonging to the institution).
• Edition: The European Physical Journal D, 2016, 1434-6060.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10305 Fluids and plasma physics
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 1.288
• RIV identification code: RIV/00216224:14310/16:00087883
• Organization unit: Faculty of Science
• Doi: http://dx.doi.org/10.1140/epjd/e2016-70061-5
• UT WoS: 000374846100005
• Keywords in English: DBD; coplanar DBD; residual heat buid up
• Tags: AKR, rivok

Abstract

Microfilaments of dielectric barrier discharge are known for their multiple re-appearance at the same spot on dielectrics. This effect of localized re-appearance is driven by residual excited species and ions, surface charge deposited on the dielectric and the local temperature build-up resulting in the local increase of reduced electric field E/delta N. To assess the magnitude of the latter, the breakdown voltage vs. temperature up to 180 C was carefully measured at coplanar DBD and used as an input into the numerical simulation of heat build-up by the train of discharge pulses. An average reduction of breakdown voltage was found to be 20 V/K. The model predicted a quasi-stable microfilament temperature into which the thermal build-up rapidly converges. Its magnitude agreed well with the reported rotational temperature of similar electrode configuration. The impact of quasi-stable temperature on microfilament formation dynamics is further discussed.

Links

• ED2.1.00/03.0086, research and development project: Name: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy
• GA13-24635S, research and development project: Name: Spektroskopické studium rekombinace povrchového náboje v dielektrických bariérových výbojích

Investor: Czech Science Foundation

• LO1411, research and development project: Name: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Acronym: CEPLANT plus)

Investor: Ministry of Education, Youth and Sports of the CR