The present disclosure relates to an air supply arrangement for a vehicle, the air supply arrangement comprising an air supply duct, an ionising member located in the air supply duct and a passive collecting member located in the air supply duct downstream of the ionising member, wherein a shortest path length of an air flow between the ionising member and the collecting member is in the range of from 20 to 70 centimeters (cm), preferably in the range of from 25 to 50 cm. The disclosure further relates to an external portion of such an air supply arrangement and a vehicle with such an air supply arrangement.

An electrode is arranged on one wall surface of a flow path of an exhaust atmosphere in a solvent separating apparatus, an electric field is applied to vaporized solvent in the exhaust atmosphere so as to concentrate only the solvent in the exhaust atmosphere in the direction toward the electric field, and the solvent is discharged to the outside of the solvent separating apparatus together with a portion of the exhaust atmosphere in the periphery of the solvent.

An image forming apparatus includes a flow passage associated with a direction of flow and a particle collecting device including a filter to collect particles in a fluid passing through the flow passage in the direction of flow. The flow passage includes a curved portion, and a distribution in particle collecting performance of the filter in a direction perpendicular to the direction of flow results from the curved portion of the flow passage.

A vehicle air purifying apparatus is provided. The vehicle air purifying apparatus includes: a charger configured to discharge positive (+) ions or negative (−) ions to charge particles included in harmful gas; a removable collecting electrode configured to have positive (+) or negative (−) polarity to allow the particles charged by the charger to be attached thereto; and a filter configured to filter harmful gas and have positive (+) or negative (−) polarity, and the filter is formed in a tubular shape having an empty space therein and the removable collecting electrode is inserted into the filter.

The present disclosure relates to a tower type air purifier installed and operated outdoors to purify air pollutants such as fine dust. More particularly, the tower type air purifier is manufactured by modularizing and combining main constituent components of a main body in a tower form in order to easily separate and purify air pollutants in the air. A controller, which prepares an air purification algorithm based on air pollution measurement information, controls a blower, a mist sprayer, an ion emitter, a cleaning water injector and an adsorption brush installed in the purifier to quickly purify a large amount of suctioned air. The purifier can be operated independently or a group of purifiers can be operated through remote control according to an air purification algorithm suitable for each air pollution region and provided from a weather center.

An air purifying device has a housing, a blower assembly disposed within the housing for blowing air, an electrically-charged electrostatic plate, and a thermal layer for heating the air to a temperature of at least 75 degrees Celsius, and preferably at least 180 degrees Celsius. The electrostatic plate is connected to a high voltage power supply providing a voltage of at least 3 kilovolts and preferably at least 30 kilovolts. The blower assembly moves the air through the thermal layer at a volume of at least 0.25 cfm and preferably at a volume of less than 15 cfm.

There is provided a system and method for collecting water droplets from an airflow of a cooling tower (8) through condensation of water vapour using an electrostatic separator (20), wherein the electrostatic separator is a single unit electrostatic separator (20) or a multi-unit electrostatic separator. The method for water particles collection from the exhaust airflow of a cooling tower primarily comprises condensing water vapour into large water droplets. It is experimentally proved that electrostatic separation solves the problem of visible plume pollution, and blow down decreased since collected water flows back to the circulating water. Additionally, electrostatic separation results in small pressure drop of the cooling tower (8).

A product removing method of introducing an atmospheric gas into a product remover including a corona discharge space to remove a product from the atmospheric gas, the product being generated inside a processing chamber under a low oxygen atmosphere, the method including: mixing the atmospheric gas with a high electric resistance gas to generate a mixed gas in a pipe or the corona discharge space, the pipe being connected between the processing chamber and the corona discharge space, the atmospheric gas being discharged from the processing chamber via the pipe, the high electric resistance gas having an electric resistance higher than an electric resistance of the atmospheric gas; and removing the product from the mixed gas by a corona discharge method in the corona discharge space into which the mixed gas is introduced via the pipe or in which the mixed gas is generated.

A commercial cooking equipment exhaust hood system includes a hood structure including an inlet opening to an exhaust flow path through the hood. A filter unit is positioned along the exhaust flow path. An electrostatic precipitator unit is downstream of the filter unit. The electrostatic precipitator includes an ionizing section upstream of a collecting section. The ionizing section includes a plurality of ionizing flow paths having side profile patterns that vary in width between at least one wide section and at least one narrow section. The collecting section includes a plurality of collecting flow paths with side profile patterns of substantially uniform width and a repeating undulating side profile pattern. A UV light source may also be provided within the hood, with a controller operatively connected to control the UV light source via a dimmer to enable selective production various UV levels.

Provided are purification systems and methods of using such systems for purifying various environments, such as indoor air, outdoor air, vehicle emissions, and industrial emissions. A purification system comprises an ionizing purifier having a substrate and an active coating. The active coating comprises a pyroelectric and/or piezoelectric material. During the operation, an incoming stream is directed toward the active coating while controlling the average pressure exerting on the active coating. This contact between the incoming stream and the active coating generates negative ions from components of the incoming stream via change in temperature and pressure/force/vibration, etc. The negative ions then interact with pollutants, transforming them into safe, purified materials of the outgoing stream. Unlike the pollutants in the incoming stream, the purified materials are non-harmful, and/or can be easily removed from the outgoing stream, e.g., by filtering and/or other separation techniques.