J 2016

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

RÁHEĽ, Jozef; Zsolt SZALAY; Jan ČECH and Tomáš MORÁVEK

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

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

References:

Impact factor

Impact factor: 1.288

RIV identification code

RIV/00216224:14310/16:00087883

Organization unit

Faculty of Science

UT WoS

000374846100005

EID Scopus

2-s2.0-84964434775

Keywords in English

DBD; coplanar DBD; residual heat buid up

Tags

Changed: 21/3/2019 16:20, doc. RNDr. Jozef Ráheľ, PhD.

Abstract

In the original language

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