According to an exemplary embodiment of the present disclosure, power is temporarily supplied to the basic dust collector and the first dielectric is charged with an electric charge, and then power supplying is stopped and dust-containing gas passes through a space between a plurality of basic dust collectors or a space between roll-type basic dust collectors to perform dust collection, and as a result, dust can be collected while the use of power supplied to a DC power supply unit from an external power supply is minimized, and further, dust collection efficiency can be increased by a concentration and distortion phenomenon at a portion where the first electrode forming a predetermined pattern is formed in the basic dust collector.

A Dust Mitigation System (“DMS”) is disclosed that includes a fabric-material having a front-surface and a back-surface; a plurality of conductive-fibers within the fabric-material; and a plurality of input-nodes approximately adjacent to the back-surface or the front-surface of the fabric-material. The plurality of conductive-fibers are approximately parallel in a first direction along the fabric-material and are approximately adjacent to the front-surface of the fabric-material and the plurality of input-nodes are in signal communication with the plurality of conductive-fibers and configured to receive an alternating-current (“AC”) voltage-signal from an input-signal-source. The plurality of conductive-fibers are configured to generate an electric-field on the front-surface of the fabric-material in response to the plurality of input-nodes receiving the AC voltage-signal from the input-signal-source and a traveling-wave (from the electric-field) that travels along the front-surface of the fabric-material in a second direction that is transverse to the first direction.

A Dust Mitigation System (“DMS”) is disclosed that includes a fabric-material having a front-surface and a back-surface; a plurality of conductive-fibers within the fabric-material; and a plurality of input-nodes approximately adjacent to the back-surface or the front-surface of the fabric-material. The plurality of conductive-fibers are approximately parallel in a first direction along the fabric-material and are approximately adjacent to the front-surface of the fabric-material and the plurality of input-nodes are in signal communication with the plurality of conductive-fibers and configured to receive an alternating-current (“AC”) voltage-signal from an input-signal-source. The plurality of conductive-fibers are configured to generate an electric-field on the front-surface of the fabric-material in response to the plurality of input-nodes receiving the AC voltage-signal from the input-signal-source and a traveling-wave (from the electric-field) that travels along the front-surface of the fabric-material in a second direction that is transverse to the first direction.

A hybrid composite discharge electrode (HCDE) (20) includes at least one metal layer (22) and at least one carbon fiber layer (26). The HCDE (20) improves the stability and uniformity of the corona while being corrosion-resistant, lightweight, and compact. Additionally, a method of making a HCDE (20) is provided. In another aspect, an electrostatic precipitator (60) is provided and includes a hybrid composite discharge electrode (62).

An ion generator, a fan coil unit and an air conditioning system. The ion generator includes: a power module; a negative plate connected to the power module; a ground plate spaced apart from a first side of the negative plate, the first side of the negative plate includes a plurality of plasma needles extending toward the ground plate; a positive plate spaced apart from a second side of the negative plate, the positive plate is connected to the power module and has a polarity opposite to that of the negative plate, and the respective sides of the negative plate and the positive plate that are facing toward each other are respectively provided with a plurality of carbon fiber brushes at corresponding positions.

An air filtration system having a housing. The housing has an inlet, a frame unit, a filter unit, and an outlet. A fan is positioned in the air filtration system or not, and pulls or pushes air into the inlet, and through the outlet, and has the air pass through the filter unit. The filter unit has a first and a second expanded metal metallic plate. The first plate has a first plurality of apertures, and the second plate a second plurality of apertures. Each plate has a coated layer of a dielectric conducting and antimicrobial agent polymer material. The frame unit secures the first expanded metal metallic plate at a first position in the housing, the second expanded metal metallic plate at a second position in the housing, and ensures, when the first and second expanded metal metallic plates are securely positioned in the housing, that the first expanded metal metallic plate is adjacent to the second expanded metal metallic plate and wherein a portion of the first expanded metal metallic plate contacts or is within 20 millimeters from the second expanded metal metallic plate and each aperture of the second plurality of apertures misaligns with an aperture of the first plurality of apertures.

A panel for accumulation of aerosol particles in an indoor environment includes a surface plate and an electrostatic collector plate coupled to the surface plate and configured to hold an electrical charge to attract and accumulate aerosol particles. The panel may include or otherwise be coupled with an activation device.

Embodiments of the present disclosure may suppress conduction between an anode and a cathode caused by condensed water in an oil removal apparatus in which oil particles are collected in a filter disposed between the anode and the cathode. An insulating layer may be sandwiched either between the filter and at least one of the anode and the cathode of the bipolar electrode, or within the filter so as to extend in a flow direction of blow-by gas, and may have an insulating property so as to prevent condensed water generated when moisture in the blow-by gas condenses, from connecting the anode and the cathode of the bipolar electrode.

Embodiments of the present disclosure may suppress conduction between an anode and a cathode caused by condensed water in an oil removal apparatus in which oil particles are collected in a filter disposed between the anode and the cathode. An insulating layer may be sandwiched either between the filter and at least one of the anode and the cathode of the bipolar electrode, or within the filter so as to extend in a flow direction of blow-by gas, and may have an insulating property so as to prevent condensed water generated when moisture in the blow-by gas condenses, from connecting the anode and the cathode of the bipolar electrode.

A device and method include ionizing particles to be captured, creating electric fields to polarize mats of filter material, and trapping the ionized particles in the polarized mats.