Development and Characterization of Atmospheric Pressure Gliding Arc Plasma Jet

Abstract In this work, we present the development and comprehensive characterization of an atmospheric pressure
gliding arc plasma jet (GAPJ) operating in an ambient air to generate non-thermal plasma. Through systematic
investigation, the relationship between jet length and airflow rate indicates a positive correlation. Electrical and
optical techniques are utilized to characterize the discharge, revealing an impact of applied voltage and gas flow
rate on discharge parameters. Calculations are made for parameters such as electron density ((0.62−3.44)×
10^19) m^−3, average power dissipation (9.85−40.50) W, and root mean square values of current and voltage.
The impacts of applied voltages and gas flow rate on these parameters are also examined. Electron excitation
temperature is determined using the Boltzmann plot method, yielding values within the range of (1.36−1.44)
eV. Rotational and vibrational temperatures of discharge are analyzed, revealing values of (1373−2065) K and
(2700−2405) K, respectively, under different operational conditions. The generated non-thermal plasma is
confined to form a plasma plume and offers promising applications for specified areas of sterilization and
decontamination in the medical, pharmaceutical, and food processing industries.