SMuK 2023 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 9: Atmospheric Pressure Plasmas and their Applications III

P 9.5: Vortrag

Mittwoch, 22. März 2023, 12:15–12:30, CHE/0089

Study on interaction of two single-filament DBDs — •Hans Höft¹, Chiel Ton², Tom Huiskamp², and Torsten Gerling^1,3 — ¹Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany — ²Department of Electrical Engineering, Electrical Energy Systems group, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands — ³Competency centre for diabetes (KDK), Greifswalder Str. 11, 17495 Karlsburg, Germany

A dielectric barrier discharge configuration consisting of two identical single-filament arrangements with variable radial distance between them was investigated by means of synchronised, fast electrical and optical diagnostics. For that purpose, two single, alumina-covered electrode pairs featuring two 1 mm gaps were put in a stainless-steel chamber flushed with 0.1 vol% O₂ in N₂ at atmospheric pressure. A high-voltage pulse with ≈ 45 ns rise time was simultaneously applied to the electrode (10 kV amplitude and variable repetition frequencies). The diagnostics consisted of fast voltage and current probes, which were synchronised with an iCCD camera to record individual discharge structures. The current was measured at the grounded side for each single-filament to calculate the discharge power and transferred charge. The interaction between two adjacent discharges was investigated to better understand upscaling challenges and opportunities, e.g. by using an electrical circuit model and the synchronised single-shot data of the electrical measurements and the corresponding iCCD images.

Funded by the DFG – project number 466331904.