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Abstract In this work, we present the development and comprehensive characterization of an atmospheric pressuregliding arc plasma jet (GAPJ) operating in an ambient air to generate non-thermal plasma. Through systematicinvestigation, the relationship between jet length and airflow rate indicates a positive correlation. Electrical andoptical techniques are utilized to characterize the discharge, revealing an impact of applied voltage and gas flowrate on discharge parameters. Calculations are made for parameters such as electron density ( (0. 62−3. 44) ×10¹9) 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 excitationtemperature 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 isconfined to form a plasma plume and offers promising applications for specified areas of sterilization anddecontamination in the medical, pharmaceutical, and food processing industries.
Chalise et al. (Fri,) studied this question.