Abstract: Energy-saving method/system for heating and humidifying a building or car's saloon are disclosed. The method includes—drawing in an outside airstream,—passing it via a dry channel and then, via a wet channel, in an opposite direction. Thereafter, the outside airstream is heated and directed to the building as supply air. An exhaust airstream from the building is introduced into a product channel. The wet channel is situated between the dry and product channels. The wet channel is in pairwise heat-exchange interactions with the dry and product channels. Water vapor, contained in the exhaust airstream, is condensed, discharged into the atmosphere at a temperature closed to the dew point. The outside airstream, passed along the wet channel, is transfer-heated and humidified by the exhaust airstream. Water from the product channel is used for wetting the wet channel. The system includes at least two membranes arranged between the channels.

Abstract: Energy-saving method/system for heating and humidifying a building or car's saloon are disclosed. The method includes—drawing in an outside airstream,—passing it via a dry channel and then, via a wet channel, in an opposite direction. Thereafter, the outside airstream is heated and directed to the building as supply air. An exhaust airstream from the building is introduced into a product channel. The wet channel is situated between the dry and product channels. The wet channel is in pairwise heat-exchange interactions with the wet and product channels. Water vapor, contained in the exhaust airstream, is condensed, discharged into the atmosphere at a temperature closed to the dew point. The outside airstream, passed along the wet channel, is transfer-heated and humidified by the exhaust airstream. Water from the product channel is used for wetting the wet channel. The system includes at least two membranes arranged between the channels.

Abstract: The present invention provides a method of restricted space formation for working media motion that can be used to design flow channels for flow of different working media (liquid or gaseous) in simple as well as complex flow channel configurations, for instance in piping and other conduits, heat exchange devices and other fluid flow devices. In one embodiment, a visual test method is used wherein a special relationship to a characteristic wavelength of a flowing fluid is present with respect to at least one of (1) optically active solid particles suspended in a test medium, (2) a wavelength of light to which flowing test medium is subjected, and (3) the depth of the flow channel in a test model. In another embodiment, a fluid flow structure comprising a micro-scale structure and a large-scale structure can be identified from a visual image of flow of test medium through a test model.

Abstract: The working media, e.g., fluid or gaseous will be motioned in a restricted space, e.g., in a piping by adding velocity to the same. While prior to the working media motion the wavelength of the motioned working media dynamic processes will be calculated then the working media will be supplied into the restricted space the characteristic diameters of which in the characteristic sections will be calculated depending on the motioned working media wavelength. When utilizing the proposed method of working media motion to achieve the maximum possible decrease of the resistance the value of characteristic diameter in the characteristic section of the restricted space will be calculated by the formula: d.sub.1 =n.times..lambda.+1/4.lambda.. When utilizing the proposed method of working media motion with the objective of maximum possible increase of the resistance the value of the characteristic diameter in the characteristic section of the restricted space will be calculated by the formula: d.sub.1 =n.times..lambda.

Abstract: According to the invention, a first air stream is directed over a first surface of a heat exchange member. The first surface includes a dry area and a moist area. The first stream is directed primarily over the dry area followed by the moist area. A second air stream is directed over a second surface of the heat exchange member perpendicular to the first stream. The second surface is opposite the first surface and has a dry region that is opposite the moist area of the first surface and a moist region that is opposite the dry area of the first surface. The second stream is directed over the dry region followed by the moist region. When the first stream is directed over the first surface, it will be cooled without changing its moisture content due to the cooling of the heat exchange member caused by the second stream passing simultaneously along the moist region on the opposite side.