摘要:
This invention solves the problem of reducing the fluid friction resistance accompanying relative movement of surfaces of a solid and a liquid. A superhydrophobic coating acting as a substrate for a gaseous lubricant of very low viscosity, reducing the fluid skin friction, characterised in that it has a hierarchic fracal structural of the surface wherein the forms of the first hierarchic level (2, 3, 9) are located at the coating's substrate, and the forms of each successive hierarchic level (22, 33, 99) are located on the surface of the previous hierarchic level and the forms of individual higher hierarchic levels reiterate the forms of the lower hierarchic levels, and forms of at least two hierarchic levels of rows (2, 22) and ridges (3, 33, 99) occur in the coating and, also, the surface has anisotropic geometry, maximally developed fractally in the direction transverse to the direction of flow and maximally smooth in the direction of flow and, also, has channels located in the coating's substrate to ensure gas flow.
摘要:
System of multilayered thermally-insulating glazing units in the form of a multiple glass unit, consisting of two external transparent glass panes and a gas medium that is transparent in visible light between the panes, while transparent internal partitions are placed in the internal space between the above- mentioned panes characterised in that the partitions (3) take the form of a film made of inorganic glass, the film is less than 400 μm thick and it is characterised by a deflection radius that is smaller than 40 cm, while its optical properties are characterised by a total reflectivity coefficient of both partition (3) surfaces that is lower than 7 percent, the visible light absorption below 7 percent and the transmittance haze coefficient below 1.5 percent. The partitions (3) are made of an ultrathin film, with its thickness within the range from 20 to 300 μm, made of silica glass or boron-lithium glass.
摘要:
Structure of thermal insulation of glazing with two-compartment insulation glass, mounted in a vertical position, consisting of two outer transparent panes of glass, between which there is a transparent gas medium and invisible transparent, positioned in parallel elements, characterized in that the transparent partitions take the form of pre-stressed tulle screens of nanofibers with an openwork design, consisting of at least two of the following three layers of tulle: (i) a frame carrier of mechanically strong, flexible or textured nanofibers, (ii) a conductive layer of nanofibers or nanowires stretched over a frame carrier, and (iii) a covering and densificating veil made of nanofibers, 5-25 nanometers in diameter, and the distance between the screens depends on the type of gas used, and in the case of standard glazing thickness of 16 to 36 millimeters, is 2 to 3 millimeters for xenon and sulfur hexafluoride, 3 to 4 millimeters for krypton, 4 to 5 millimeters of dry argon, and for box-type glazing, which is over 15 cm thick, the distance between the various partitions in the package will be in the range of 4 to 6 millimeters for xenon and sulfur hexafluoride, 6 to 8 millimeters for krypton and 12-16millimeters of dry argon and dry air.
摘要:
The panel comprises at least two layers of material (1) separated with a gap (2) and tightly closed at the panel's edges. The adjoining material layer (1) surfaces are covered with the coating (3) made of gastight material of a high reflectivity coefficient. The material layers (1) are fixed relative to each other by means of distancing units, each of which possesses a bearing element (4) and two complexes of mutually embedded shells (5, 6, 7, 8). The shells are suspended on the ends of the bearing element (4) and relative to each other by tension strings (9), each of which is wound around the end of the bearing element (4), the edge of the inner shell (5) and consecutively through the bottom of the smaller shell (6) and the edge of the larger shell (7) of the complex, while the ends are fixed to the outer shell (8). The panel is equipped with the gas evacuation pipe (10), tightly fastened to the coating (3), leading through the material layer (1) to the outside and ending with the cutting-off element (11). In the gap (2) between the material layers (1) a high vacuum is obtained.
摘要:
Structure of gaseous and radiational thermal insulation of glass units with two- compartment insulation glass, consisting of two external transparent panels in the form of glass, between which there is a transparent medium of transparent gas and invisible elements, characterized in that the transparent partitions (2) have a V-shaped cross- section with an angle of aperture of 80 to 100 degrees, preferably 90 degrees, and form a set that fills the interior of the glazing, where the plane determined by the bisector of the angle of aperture is parallel to the pane (1) and the partitions (2) are mutually parallel to each other, and the lines of contact between the partitions (2) and the panes (1) are horizontal, and also a low-emission coating (3) is located in the interior of the glazing -on the surface of the pane (1) which is directed towards the zone of lower temperature, while the distance between the partitions (2) is dependent on the type of gas, and in the case of glazing thickness from 16 to36 millimeters ranges from 2 to 3 millimeters for xenon and sulfur hexafluoride, 3 to 4 millimeters for krypton, 4 to 5 millimeters of dry argon, and for box-shaped glazing with over 15 cm of thickness, the distance between the specific partitions (2) of the package will be in the range of 4 to 6 millimeters for xenon and sulfur hexafluoride, 6 to 8 millimeters of krypton and 12-16 mm for the dry argon and dry air.
摘要:
This invention solves the problem of developing transparent thermal insulation with high thermal resistance. The insulation is filled with an amorphous invisible medium whose all components have similar light diffraction and diffusion coefficients. The medium is a two-phase polymer-liquid system composed of a transparent spongy polymer skeleton 2 filled with a transparent liquid 3 with poor heat conductivity, both media having the closest possible light diffraction and diffusion indices.
摘要:
This invention solves the problem of introducing an invisible system designed to prevent the possibility of developing thermal convection (in gaseous medium) into the space contained between transparent sheets, especially panes, filled with transparent colourless gas, or designing the geometry of the entire space in such a way, as to prevent the possibility of developing such convection. The system of gaseous thermal insulation has an internal arrangement suppressing thermal convection, in the form of at least one chamber (3) defined by transparent walls (2) parallel to each other and located between the outer panes (1) and inclined to the horizontal, with the bottom edge of the chamber (3) bound along its longer edge with the colder pane, i.e., the one located in the zone of a lower temperature, whereas the upper edge of the chamber is bound with the warmer pane, i.e., the one located in the zone of a lower temperature.