Simulation-based architecture of a stable large-area $$JDBD$$ atmospheric plasma source

Abstract

AbstractUnified jet-DBD design, $$JDBD$$ JDBD , proposed in this work presents large-scale plasma in an unbounded region of atmospheric air, without any need for the flow of gas, offering efficient exposure to sizable and complex objects. This is a simulation-based architecture for stable non-thermal plasma source with notable experimental results. $$JDBD$$ JDBD geometry optimizes the electric field and charge distribution for a diffuse discharge in the steady air by a key design parameter of $$efficient \; insulation$$ e f f i c i e n t i n s u l a t i o n . Teflon insulator with a thickness $${d}_{Tf}\ge 10 \; \text{mm}$$ d Tf ≥ 10 mm imposes an intense and uniform electric field shaped up at the open area in front of the device and generates radially/axially expanded plasma jet. In the $$JDBD$$ JDBD , phase shift increases by $${I}_{rms}$$ I rms and the plasma generates more power than the classical plasma jet. Two distinct states of $$JDBD$$ JDBD operation indicate the mode-swap at $$0.8\; \text{mA}$$ 0.8 mA and power dissipation. In the reactive $$JDBD$$ JDBD scheme even small changes in the phase angle effectively improves the electric power.