Please use this identifier to cite or link to this item:
https://physrep.ff.bg.ac.rs/handle/123456789/591
Title: | Electrical, thermal and optical diagnostics of an atmospheric Plasma jet system | Authors: | Nwankire, C. E. Law, V. J. Nindrayog, A. Twomey, B. Niemi, K. Milosavljević, Vladimir Graham, W. G. Dowling, D. P. |
Keywords: | Corona;Diagnostics;Infrared thermography;Optical emission;Plasma diagnostics;Plasma jet | Issue Date: | 1-Oct-2010 | Journal: | Plasma Chemistry and Plasma Processing | Abstract: | Plasma diagnostics of atmospheric plasmas is a key tool in helping to understand processing performance issues. This paper presents an electrical, optical and thermographic imaging study of the PlasmaStream atmospheric plasma jet system. The system was found to exhibit three operating modes; one constricted/localized plasma and two extended volume plasmas. At low power and helium flows the plasma is localized at the electrodes and has the electrical properties of a corona/filamentary discharge with electrical chaotic temporal structure. With increasing discharge power and helium flow the plasma expands into the volume of the tube, becoming regular and homogeneous in appearance. Emission spectra show evidence of atomic oxygen, nitric oxide and the hydroxyl radical production. Plasma activated gas temperature deduced from the rotational temperature of nitrogen molecules was found to be of order of 400 K: whereas thermographic imaging of the quartz tube yielded surface temperatures between 319 and 347 K. © Springer Science+Business Media, LLC 2010. |
URI: | https://physrep.ff.bg.ac.rs/handle/123456789/591 | ISSN: | 0272-4324 | DOI: | 10.1007/s11090-010-9236-5 |
Appears in Collections: | Journal Article |
Show full item record
SCOPUSTM
Citations
47
checked on Oct 29, 2024
Page view(s)
16
checked on Nov 5, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.