Dependence of dissipated power on applied voltage for surface barrier discharge from simplest equivalent circuit

Abstract

Dielectric barrier discharges (DBDs) are characterized by electrical measurements interpreted on the basis of equivalent circuits. The concept of the simplest equivalent circuit of volume DBDs is expanded to surface DBDs (SDBDs); this was completed by taking into account the discharge expansion on the dielectric-gas interface. It is assumed, that this expansion is not limited by the dimension of the electrodes. This approach delivers an analytical relationship for the dissipated power as a function of the applied voltage amplitude. It applies to SDBDs with sufficiently long embedded electrodes and operated by sinusoidal high voltages. The obtained relations were validated by comparison with experimental data obtained from previous work devoted to SDBDs with 20 mm elongated electrodes operated in ambient air and for applied peak-to-peak voltages of up to 20 kV at 1 kHz frequency. The dependencies derived from the equivalent circuit agree well with experimentally recorded charge and dissipated energy.

Icing Mitigation by MEMS-Fabricated Surface Dielectric Barrier Discharge

“…The second strategy is to vary the dielectric thickness of the SDBD. A smaller dielectric thickness (and larger dielectric constant) provides a stronger increase of the discharge power with the applied voltage, see Figures 7 and 8 as well as the results of Hink et al [34] and Pipa et al [43].…”

“…The power was scaled to the effective length of the high-voltage electrodes (L = 0.696 m) which was measured disregarding the microstructure as introduced by Hink et al [34]. The power of a freely expanding SDBD increases with a cubic behavior of the applied voltage (P ∼ V 3 ), see [43]. Considering Figure 6 the discharge expansion of the glass SDBD is limited by the dimensions of the ground electrode and as well as the neighboring high-voltage electrodes.…”

“…It can be noted that the electrical power consumed by the plasma for a freely expanding SDBD scales cubic with the applied voltage [43] and quadratic with the dielectric losses [56]. However, when the discharge occupies the whole surface area, the further power increase is linear.…”

Electrical investigation of a pin-to-plane dielectric barrier discharge in contact with water

“…During the positive discharge, the charge Qm increases with voltage and the slope should be Cd [13,21]. In our figure, the increase in Qm is not exactly linear and shows the beginning of an almond shape due to the expansion of the plasma [23,24]. When this method is used to determine the energy injected by cycle, the uncertainty is related to the accuracy of the two voltage probes, that of the oscilloscope and the value of the capacitor Cm.…”

Computational study of simultaneous positive and negative streamer propagation in a twin surface dielectric barrier discharge via 2D PIC simulations

“…Under these conditions, it is very clear that utilizing an SDBD electrode system which ignites on both sides of the dielectric plate will improve the treatment volume, and as such efficiency of the process. Unfortunately, most theoretical investigations utilizing circuit models [36][37][38], global models, molecular dynamic models [33], fluid models [12,17,20], and even particle-in-cell/Monte Carlo collision (PIC/MCC) models [30,32,34] of (S)DBDs and packed bed reactors provide limited insights into the underlying mechanisms of the plasma propagation [39][40][41]. No contributions on the theoretical investigation of a dual phase symmetric SDBD could be found by the authors, pointing to a significant lacking of knowledge of such configurations is present.…”