atmospheric pressure

Impact of the electrode proximity on the streamer breakdown and development of pulsed dielectric barrier discharges - Dataset

Presented data was obtained from the analysis of the impact of the electrode proximity on the streamer breakdown and development of pulsed-driven dielectric barrier discharges (DBDs) in a singlefilament arrangement in a gas mixture of 0.1 vol% O2 in N2 at 0.6 bar and 1.0 bar. The gap distance was varied from 0.5 mm to 1.5 mm, and the applied voltage was adapted correspondingly to create comparable breakdown conditions in the gap. Fast electrical measurements provided insight into discharge characteristics such as the transferred charge and consumed energy.

Spatial distribution of HO₂ in an atmospheric pressure plasma jet investigated by cavity ring-down spectroscopy - dataset

The data set comprises full cavity ring-down spectra and absorption coefficients obtained from on-off-resonance measurements, in order to determine the spatial distribution of HO₂ in the cold atmospheric pressure plasma jet kINPen-sci. Therefore, the plasma jet was operated with 3 slm Ar and 3000 ppm water, and was equipped with a gas curtain of 5 slm O₂. To determine the effective absorption length, the HO₂ absorption was measured in radial direction. These radial fits had a Gaussian-like shape.

Self-consistent Cathode-Plasma Coupling and Role of the Fluid Flow Approach in Torch Modelling - Dataset

The data set is related to a two-dimensional and stationary magneto-hydrodynamic model of a plasma spray torch operated with argon, which is developed to predict the plasma properties in a steady operating mode. The model couples a submodel of a refractory cathode and its non-equilibrium boundary layer to a submodel of the plasma in local thermodynamic equilibrium in a self-consistent manner. The Navier-Stokes equations for a laminar and compressible flow are solved in terms of low- and high-Mach number numerical approaches.

System and method for operating a plasma jet configuration

The invention relates to a system (1) for generating and controlling a non-thermal atmospheric pressure plasma, comprising: - a discharge space (10) into which a working gas can be introduced via a first opening (12), wherein a plasma (5) can be generated in the discharge space (10), wherein the discharge space (10) has a second opening (14), so that the plasma (5, 6) can exit from the discharge space (10) through this second opening (14) and - at least one high-voltage electrode (20) for generating an electromagnetic field for generating a plasma (5) in the discharge space (10).

The effect of oxygen admixture on the properties of microwave generated plasma in Ar-O₂ : a modelling study - dataset

This work presents the datasets of the results of a self-consistent modelling analysis on microwave plasma generated in Ar-O₂ mixtures at a frequency of 2.45 GHz at atmospheric pressure. The study focuses on how the plasma properties are in uenced by the increase of the oxygen fraction in the gas mixture. The oxygen admixture is increased from 1 up to 95 % in mass for values of the input microwave power of 1 and 1.5 kW.

Ion Wind DBD

The Ion Wind DBD uses a flat plasma electrode to create a surface dielectric barrier discharge (DBD) in the room air flowing over it. An additional “extraction” electrode is arranged in parallel to form a rectangular ventilation duct. The extraction electrode is charged, so that an additional unipolar electric field through the ventilation duct is created. This drags the ions of one polarity (either positive or negative) generated by the surface DBD in the direction of the extraction electrode.

Venturi-DBD (VDBD)

The gas pressure is an effective parameter to control plasma-chemical reactions, but its adjustment often requires substantial effort. In the Venturi-DBD (VDBD), the pressure can be set to any value between 100 mbar and 1000 mbar reliably and reproducibly. Using a Venturi pump for vacuum generation ensures that the system is affordable and almost maintenance-free. With air as process gas, the output gas composition can seamlessly be adjusted from a strongly ozone-dominated regime to a nitrogen oxides-only-regime including nitric oxide.

Hairline plasma jet (hairlINePlasma)

The hairline plasma jet (hairlINePlasma) is a cold atmospheric pressure plasma source mainly for biological and medical applications. hairlINePlasma uses the physical effect of negative dc corona discharges and produces a nanosecond self-pulsed microplasma with a very thin plasma filament. The Plasma filament has a diameter of about 30 µm and a length of up to 3 cm. Due to this geometrical features, hairlINePlasma is particularly suitable for the treatment of microscopic cavities and the localized functionalization of conductive surfaces.

kINPen® IND

Plasma as a cross-sectional technology in many industry branches, but also in research laboratories, is an indispensable tool in surface treatment. Plasma technology is used everywhere where quality, productivity, environmental sustainability, precision and flexibility is important. Surfaces are cleaned, activated and decontaminated at atmospheric pressure with the handy kINPen® IND. The device is particularly used for surface treatment of temperature-sensitive materials as, for instance, plastics.