Advanced

Translational, rotational, vibrational and electron temperatures of a gliding arc discharge

Zhu, Jiajian LU ; Ehn, Andreas LU ; Gao, Jinlong LU ; Kong, Chengdong LU ; Aldén, Marcus LU ; Salewski, Mirko LU ; Leipold, Frank; Kusano, Yukihiro and Li, Zhongshan LU (2017) In Optics Express 25(17). p.20243-20257
Abstract

Translational, rotational, vibrational and electron temperatures of a gliding arc discharge in atmospheric pressure air were experimentally investigated using in situ, non-intrusive optical diagnostic techniques. The gliding arc discharge was driven by a 35 kHz alternating current (AC) power source and operated in a glow-type regime. The two-dimensional distribution of the translational temperature (Tt) of the gliding arc discharge was determined using planar laser-induced Rayleigh scattering. The rotational and vibrational temperatures were obtained by simulating the experimental spectra. The OH A–X (0, 0) band was used to simulate the rotational temperature (Tr) of the gliding arc discharge whereas the NO A–X (1,... (More)

Translational, rotational, vibrational and electron temperatures of a gliding arc discharge in atmospheric pressure air were experimentally investigated using in situ, non-intrusive optical diagnostic techniques. The gliding arc discharge was driven by a 35 kHz alternating current (AC) power source and operated in a glow-type regime. The two-dimensional distribution of the translational temperature (Tt) of the gliding arc discharge was determined using planar laser-induced Rayleigh scattering. The rotational and vibrational temperatures were obtained by simulating the experimental spectra. The OH A–X (0, 0) band was used to simulate the rotational temperature (Tr) of the gliding arc discharge whereas the NO A–X (1, 0) and (0, 1) bands were used to determine its vibrational temperature (Tv). The instantaneous reduced electric field strength E/N was obtained by simultaneously measuring the instantaneous length of the plasma column, the discharge voltage and the translational temperature, from which the electron temperature (Te) of the gliding arc discharge was estimated. The uncertainties of the translational, rotational, vibrational and electron temperatures were analyzed. The relations of these four different temperatures (Te>Tv>Tr >Tt) suggest a high-degree non-equilibrium state of the gliding arc discharge.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
25
issue
17
pages
15 pages
publisher
OSA
external identifiers
  • scopus:85027701893
ISSN
1094-4087
DOI
10.1364/OE.25.020243
language
English
LU publication?
yes
id
1ec7eda1-b455-412a-8842-2cda6b11cd70
date added to LUP
2017-09-06 14:34:58
date last changed
2017-09-06 14:34:58
@article{1ec7eda1-b455-412a-8842-2cda6b11cd70,
  abstract     = {<p>Translational, rotational, vibrational and electron temperatures of a gliding arc discharge in atmospheric pressure air were experimentally investigated using in situ, non-intrusive optical diagnostic techniques. The gliding arc discharge was driven by a 35 kHz alternating current (AC) power source and operated in a glow-type regime. The two-dimensional distribution of the translational temperature (T<sub>t</sub>) of the gliding arc discharge was determined using planar laser-induced Rayleigh scattering. The rotational and vibrational temperatures were obtained by simulating the experimental spectra. The OH A–X (0, 0) band was used to simulate the rotational temperature (T<sub>r</sub>) of the gliding arc discharge whereas the NO A–X (1, 0) and (0, 1) bands were used to determine its vibrational temperature (T<sub>v</sub>). The instantaneous reduced electric field strength E/N was obtained by simultaneously measuring the instantaneous length of the plasma column, the discharge voltage and the translational temperature, from which the electron temperature (T<sub>e</sub>) of the gliding arc discharge was estimated. The uncertainties of the translational, rotational, vibrational and electron temperatures were analyzed. The relations of these four different temperatures (T<sub>e</sub>&gt;T<sub>v</sub>&gt;T<sub>r</sub> &gt;T<sub>t</sub>) suggest a high-degree non-equilibrium state of the gliding arc discharge.</p>},
  author       = {Zhu, Jiajian and Ehn, Andreas and Gao, Jinlong and Kong, Chengdong and Aldén, Marcus and Salewski, Mirko and Leipold, Frank and Kusano, Yukihiro and Li, Zhongshan},
  issn         = {1094-4087},
  language     = {eng},
  month        = {08},
  number       = {17},
  pages        = {20243--20257},
  publisher    = {OSA},
  series       = {Optics Express},
  title        = {Translational, rotational, vibrational and electron temperatures of a gliding arc discharge},
  url          = {http://dx.doi.org/10.1364/OE.25.020243},
  volume       = {25},
  year         = {2017},
}