Hannover 2020 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 10: Poster Session 2

P 10.22: Poster

Dienstag, 10. März 2020, 16:30–18:30, Empore Lichthof

2D Model Simulation for Single Filament Dielectric Barrier Discharge in Air — •Bahram Mahdavipour¹, Sebastian Dahle^2,3, and Jens Oberrath Oberrath⁴ — ¹Institute of Product and Process Innovation, Leuphana University Lüneburg, Germany — ²Clausthal Center for Material Technology, Clausthal University of Technology, Leibnizstr. 9, 38678 Clausthal-Zellerfeld, Germany — ³Department of Wood Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia — ⁴South Westphalia University of Applied Science, Department of Electric Power Engineering, Modeling and Simulation, Soest, Germany

Dielectric-barrier discharges (DBD) are devices that are being used in several applications such as surface modification, plasma chemical vapor deposition, plasma medicine, pollution control, gas, and air cleaning. Filamentary DBDs are created as a number of short time duration individual breakdown channels and are known as microdischarges. Most of the chemical reactions of DBDs take place in their microdischarges. The aim of this work is to study microdischarges at low temperatures and atmospheric pressure conditions in an air DBD to analyze their creation, the chemical reactions, and the physical mechanisms that occur. The microdischarge is simulated in a 2D fluid model in PLASIMO with simplified air (nitrogen-oxygen mixture) in a needle to needle geometry. At the powered and dielectrically insulated electrode, a sinusoidal voltage is applied and the counter electrode is grounded. Through the simulation, parameters like electron density, N2+, O2+, and ozone production can be studied.