Electric Discharge in Pin-Plate Audio Frequency Plasma

Abstract

Experimental results on some properties of electric discharge initiated by audio frequency voltages in the range of 50-10000 Hz are presented. These results indicate that there are at least two modes of plasma ionic oscillations. A resonance-type behavior is seen when the driving field frequency becomes equal to the plasma ionic frequency. The results for plasma density and plasma temperature for both modes are presented.

Enhancement of corona discharge induced wind generation with carbon nanotube and titanium dioxide decoration*

“…Most CDIW instruments consist of a needle-to-collecting electrode system, where the needle with a smaller diameter can generate a large local field intensity when other parameters are fixed. Numerous experimental and analytical investigations have been conducted to study the corona discharge behavior with respect to a series of parameters, such as various electrode configurations, [12,13] wind velocity profile, [14][15][16] voltage polarity, [16,17] air moisture, [9,14,17] as well as electrode gap. [12,15,18] Meanwhile, nanoscale materials with inherently high aspect ratios, small tip radii, and sharp edges, such as carbon nanotubes (CNTs), [19,20] graphene sheets, [21] ZnO nanowires, [22] and other nanostructures, [23][24][25] have been investigated for the development of stable atmospheric corona discharges.…”

“…Numerous experimental and analytical investigations have been conducted to study the corona discharge behavior with respect to a series of parameters, such as various electrode configurations, [12,13] wind velocity profile, [14][15][16] voltage polarity, [16,17] air moisture, [9,14,17] as well as electrode gap. [12,15,18] Meanwhile, nanoscale materials with inherently high aspect ratios, small tip radii, and sharp edges, such as carbon nanotubes (CNTs), [19,20] graphene sheets, [21] ZnO nanowires, [22] and other nanostructures, [23][24][25] have been investigated for the development of stable atmospheric corona discharges. Among the nano-materials, a thin film of CNTs has been demonstrated as an ideal cathode candidate for electron emission in field emission devices due to the high aspect ratio, outstanding electrical conductivity, excellent chemical stability, and superior mechanical strength and durability.…”

Experimental Investigation of Low Pressure Audio Frequency Discharge in Argon

“…The first is related to the fact that not many of the shelf high voltage AF sources are available. [1] The second is more related to the associated dynamical complexity of such discharges. Such complexities arise from the fact that many types of oscillations and instabilities that occur in most low pressure discharge plasmas have frequencies which fall in the AF range.…”

One-dimensional numerical model of transient discharges in air of a spatial plasma ignition device

“…The discharge power o f the plasma support phase is determined by computing the area bounded by the voltage-current hysteresis curve; this approach was used by Azooz and Talal (2011). The Matlab solver by Owaid (2011) was used to determine the area bounded by the hysteresis curve.…”