Title :
The Influences of Water and Oxygen Contents on Length of Atmospheric Pressure Plasma Jets in Ar/H2O and Ar/O2 Mixtures
Author :
Zhi Fang ; Yaodong Zhou ; Zhengqiu Yao
Author_Institution :
Sch. of Autom. & Electr. Eng., Nanjing Univ. of Technol., Nanjing, China
Abstract :
Images are taken to study the influence of applied voltage and O2 or H2O vapor content on discharge evolution and jet length of atmospheric pressure plasma jet in Ar/O2 and Ar/H2O mixtures. Three discharge modes of corona, dielectric barrier discharge, and jet with the increase of applied voltage are identified, and the breakdown voltage and jet generated voltage are different for O2 and H2O adding. The jet length decreases with the increase of O2 and H2O content, and this may be due to their quenching effect on excitation and ionization particles.
Keywords :
argon; corona; dielectric-barrier discharges; gas mixtures; hydrogen compounds; ionisation; oxygen; plasma diagnostics; plasma jets; plasma transport processes; Ar-H2O; Ar-O2; atmospheric pressure plasma jets; breakdown voltage; corona; dielectric barrier discharge; discharge modes; excitation particles; ionization particles; jet length; oxygen contents; pressure 1 atm; quenching effect; water contents; Argon; Breakdown voltage; Discharges (electric); Electrodes; Electron tubes; Plasmas; Water; Atmospheric-pressure plasmas; discharge mode; jet length; plasma jet; plasma jet.;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2014.2323300
