Disclosed is a method of controlling an air supply system for a fuel cell. The air supply system includes a fuel cell stack, an air channel to supply air to an inlet of the fuel cell stack, a gas adsorption unit disposed on the air channel and configured to adsorb oxygen contained in air introduced into the air channel. In particular, the method includes: determining whether a power generation operation of the fuel cell stack is resumed; when the power generation operation of the fuel cell stack is resumed, controlling a voltage source to apply a voltage to the gas adsorption unit; and supplying air to the fuel cell stack through the air channel in a state in which the voltage is applied to the gas adsorption unit.

An air purification system includes a conduit extending between an inlet and an outlet, each in fluid communication with an enclosed environment. Ambient air from the enclosed environment enters the conduit via the inlet and treated air exits the conduit and enters the enclosed environment via the outlet. The system further includes a fibrous filter disposed within the conduit and configured to treat the ambient air thereby generating the treated air, and a renewal unit disposed within the conduit and configured to renew the fibrous filter.

A plasma air purifying device includes a container and at least one plasma-generating element. The container includes a container body, a plurality of first partition plates and a plurality of second partition plates. The container body has an air inlet, an air outlet, and an accommodating space between the air inlet and the air outlet, and the accommodating space includes a plasma zone and a reaction zone. The first partition plates and the second partition plates are staggered in the reaction zone to separate a plurality of reaction chambers. The reaction chambers integrate spatially first through channels of the corresponding first partition plates and second through channels of the corresponding second partition plates so as to form a repetitive bending reaction channel, such that the plasma can purify the air flowing through the air inlet, the plasma zone, the repetitive bending reaction channel and the air outlet.

An air pollution prevention device applied for a baby carriage includes a sealing cover, a filtration cleaner, a gas detection module and an intelligent control and process device. The sealing cover is hooded on the baby carriage for forming a sealed space. The filtration cleaner penetrates the sealing cover form the outside of the baby carriage for introducing an outside air into the sealed space of the baby carriage and discharging an air pollution source out of the sealed space. The gas detection module detects the air pollution source and outputs gas detection data. The intelligent control and process device receives and compares the gas detection data and controls an enablement of a gas guider of the filtration cleaner for filtering and exchanging the air pollution source in the sealed space so as to generate a clean air.

The present invention provides an energy-efficient method and apparatus that can achieve exhaust gas abatement with a minimum use of diluent nitrogen gas. More specifically, the present invention is directed to a method and apparatus for exhaust gas abatement under reduced pressure, in which an exhaust gas supplied from an exhaust gas source via a vacuum pump is decomposed by heat of a high-temperature plasma under a reduced pressure.

An emission reduction device for cooking fumes produced from smoking, frying and roasting is provided, which includes a purifying-tank shell. One end of the purifying-tank shell is provided with an air inlet and other end of the purifying-tank shell is provided with an air outlet. The device further includes a nebulizer, an ultrasonic coagulating unit, and an electrostatic deposition unit, which are sequentially arranged in the purifying-tank shell from the air inlet to the air outlet. A box body is connected to the air outlet of the purifying-tank shell, the box body is provided with a photocatalytic oxidation unit, a plasma catalytic oxidation assembly and an end filter unit therein. An exhaust port is installed on a rear side of the box body. Two sides of the ultrasonic coagulating unit are each provided with a flow rectifier which is longitudinally and slidably arranged in the purifying-tank shell.

Disclosed is a system and method related to removal of carbon from carbon dioxide via the use of plasma arc heating techniques. The method involves generating C atoms and H atoms from C.sub.xH.sub.y. The method involves generating graphite and H.sub.2 from the C atoms and H atoms, and extracting the graphite. The method involves quenching the H.sub.2 with C.sub.xH.sub.y. The method involves receiving, at a generator, the quenched the H.sub.2 and C.sub.xH.sub.y and generating electricity. The method involves generating a concentrated stream of H.sub.2 from the quenched H.sub.2 and C.sub.xH.sub.y. The method involves receiving CO.sub.2 and the concentrated stream of H.sub.2 and generating C, O, and H atoms. The method involves receiving the C, O, and H atoms and generating graphite, wherein the graphite is extracted. In the hydrocarbon C.sub.xH.sub.y: x is an integer 1, 2, 3, . . . , and y=2x+2.

A filter unit for an air cleaning device includes an odor filter configured for odor neutralization and embodied as a device for plasma generation. The odor filter includes an air-permeable high-voltage electrode and an air-permeable counter electrode arranged behind one another in a direction of flow of air. Each of the air-permeable high-voltage electrode and the air-permeable counter electrode is formed by a panel element.

An electrostatic filter unit for an air cleaning device includes an ionization unit configured to ionize particles in air and to deplete odor, and a separation unit arranged downstream of the ionization unit in a direction of flow of air and configured to separate particles.

A method and system to treat cooking emissions (e.g., smoke) employs a nanosecond high voltage pulse generator and a transient pulsed plasma reactor. The system is used in a scheme that substantially reduces particulate matter produced in commercial charbroiling processes (e.g., cooking of hamburger meat). Both a reduction in the size distribution and total particulate mass is achieved using the method and system described herein.