Research on Wire-to-Two Fin Configuration for Positive Atmospheric Plasma by Electrokinetic Blower

Abstract

Interest in the development of electro-fluid-dynamic devices (EFDs) based on corona discharge is growing due to their advantages and applicability across different industrial sectors. On the one hand, their performance as forced convection motors, in terms of weight, volume, and absence of noise and moving parts, make them competitive against traditional systems such as fans. On the other hand, the actions of the corona discharge, in terms of elimination of viruses and bacteria, are already known. This paper studies the characteristics of corona discharge in terms of air flow for a new proposed configuration and geometry of electrodes. A systematic study is performed through a parametric study of the distances, power consumption, and size of the corona electrode. The characteristic voltage–current (CVCCs) and flow–pressure curves obtained provide design rules to use the generated corona discharge and the device itself, as a silent air propeller, which may also sterilize the surrounding environment and surfaces.

Electrohydrodynamic devices for ionic wind generation and airborne positive‐strand RNA viruses inactivation by nonthermal atmospheric plasma

“…These structures are made using conventional 3D printing (fused deposition modeling) of acrylonitrile butadiene styrene (ABS). [1,2] The experiments were carried out with the plasma device operating on direct current in the range of 3.5-6 kV, provided by a high-voltage DC power supply (Heinzinger® 6000-10 high-voltage laboratory model LNC). The corona electrode was connected to the supply with a voltage between 0 and 6 kV and the collector electrode was connected to the ground (Figure 2).…”

“…In previous studies, the research group had focused its efforts on the optimization of the produced velocities according to the design parameters of the system and its electrostatic behavior, to obtain scalable and adaptable devices for different applications. [1] In this regard, static, total, and dynamic pressures at the outlet of the EHD plasma generators were evaluated. Pressure measurements were obtained using a differential pressure sensor (Sensirion model, SDP610-125Pa) located at the outlet of the plasma devices in an external structure, analogous to the virus testing but in an open setup.…”

“…[20][21][22][23] The generation of the airflow is performed without the presence of moving parts or vibrations and with low energy consumption, which is an advantage when the technology is used in the presence of people. [1] Air quality has a significant impact on people's health. [24,25] New technologies need to be developed to improve air quality and drastically reduce the presence of bacteria and viruses in the environment and on surfaces, without causing health problems.…”

“…Electrohydrodynamics (EHD) generated by corona discharge studies the movement of fluid flow resulting from the application of a high electric field. [ 1 ] This phenomenon occurs when a high voltage is applied between a corona or high voltage electrode and a ground or collector electrode, creating a partial discharge in a gas with a high aspect ratio between the two electrodes. With this effect, the composition of the fluid changes to a plasma state.…”

“…[ 20–23 ] The generation of the airflow is performed without the presence of moving parts or vibrations and with low energy consumption, which is an advantage when the technology is used in the presence of people. [ 1 ]…”