Radiator

FIELD: machine engineering.

SUBSTANCE: radiator is described, made of thermally conductive material containing a heat absorbing surface in contact with the heat-generating surface of the electronic component and a heat-distributing surface. The heat-distributing surface is parallel ribs that are perpendicular to the heat absorbing surface of the radiator. The ribs form channels for the passage of cooling medium. Each channel wall alternates with flat and concave surfaces in such a way that the cross section of the channel changes along the whole path of cooling medium movement.

EFFECT: intensification of heat transfer from the radiator to the cooling medium.

6 cl, 8 dwg

 



 

Same patents:

FIELD: heating.

SUBSTANCE: invention relates to intensification methods of liquid heat exchange with a smooth surface and can be used at manufacture of smooth surface cooling systems, namely at manufacture of cooling systems of microelectronic equipment. Multiple hydrophobic areas with diameter d, which are located in a staggered order at distance L from each other, are formed on a smooth surface being cooled. Diameter d of each hydrophobic area and distance L of hydrophobic areas from each other are determined based on properties of the liquid and the surface being cooled.

EFFECT: intensification of heat exchange at boiling on a smooth surface being cooled with minimum costs for treatment of the surface being cooled and providing uniform heat exchange.

3 cl, 2 dwg, 1 ex

FIELD: heating.

SUBSTANCE: invention relates to heat engineering, and namely to material, the emitting/absorbing capacity of which is close to that of an absolutely black body. Metamaterial represents periodically alternating strips of conducting material (metal) and dielectric; with that, width of dielectric strips is larger than length of emission maximum wave at the specified temperature; conducting material cross section has the shape of rectangles with a flat end face projecting onto the emitting surface, or triangles with a vertex directed towards the emitting surface and leaving it; in both cases the curvature radius between adjacent planes of the conducting material shall be less than length of emission maximum wave at the specified temperature; at the triangle cross section of the conducting material the height of triangles is larger than length of emission maximum wave at the specified temperature.

EFFECT: creation of material, the emitting/absorbing capacity of which is close to an absolutely black body.

3 cl, 4 dwg

Heat removal device // 2465531

FIELD: power engineering.

SUBSTANCE: in a device comprising equipment with a source of heat operating in a maximum heat mode, a cold part corresponding to the equipment, and an element to transfer heat from equipment to the cold part, the specified equipment and the cold part are divided mainly with a gas gap, besides, the specified element comprises at least one thermal pipe stretching via the specified gap and contacting by its one end with the equipment, and with the other end - with the cold plate, besides, the specified element is arranged as capable of limiting heat sent to the cold part under thermal values exceeding the determined threshold value that is below the maximum value of the specified mode.

EFFECT: elimination of equipment overheat.

9 cl, 18 dwg

FIELD: power industry.

SUBSTANCE: proposed device includes some equipment containing heat energy source, some part which is relatively cold in relation to the above equipment, and some heat-conducting element capable of providing the transfer of heat energy from the above equipment to the above cold part. At that, the above element is made so that under certain temperature conditions exceeding the specified temperature conditions the above equipment and the above cold part turn to be thermally isolated from each other.

EFFECT: protection of equipment against overheating.

20 cl, 15 dwg

The invention relates to the technical physics and is intended for parameter optimization of heat transfer surface

The invention relates to heat exchange with boiling liquid and can be used to study the heat transfer in evaporation and modes of evaporative cooling of heat-stressed elements of technical devices in various industries

FIELD: power industry.

SUBSTANCE: proposed device includes some equipment containing heat energy source, some part which is relatively cold in relation to the above equipment, and some heat-conducting element capable of providing the transfer of heat energy from the above equipment to the above cold part. At that, the above element is made so that under certain temperature conditions exceeding the specified temperature conditions the above equipment and the above cold part turn to be thermally isolated from each other.

EFFECT: protection of equipment against overheating.

20 cl, 15 dwg

Heat removal device // 2465531

FIELD: power engineering.

SUBSTANCE: in a device comprising equipment with a source of heat operating in a maximum heat mode, a cold part corresponding to the equipment, and an element to transfer heat from equipment to the cold part, the specified equipment and the cold part are divided mainly with a gas gap, besides, the specified element comprises at least one thermal pipe stretching via the specified gap and contacting by its one end with the equipment, and with the other end - with the cold plate, besides, the specified element is arranged as capable of limiting heat sent to the cold part under thermal values exceeding the determined threshold value that is below the maximum value of the specified mode.

EFFECT: elimination of equipment overheat.

9 cl, 18 dwg

FIELD: heating.

SUBSTANCE: invention relates to heat engineering, and namely to material, the emitting/absorbing capacity of which is close to that of an absolutely black body. Metamaterial represents periodically alternating strips of conducting material (metal) and dielectric; with that, width of dielectric strips is larger than length of emission maximum wave at the specified temperature; conducting material cross section has the shape of rectangles with a flat end face projecting onto the emitting surface, or triangles with a vertex directed towards the emitting surface and leaving it; in both cases the curvature radius between adjacent planes of the conducting material shall be less than length of emission maximum wave at the specified temperature; at the triangle cross section of the conducting material the height of triangles is larger than length of emission maximum wave at the specified temperature.

EFFECT: creation of material, the emitting/absorbing capacity of which is close to an absolutely black body.

3 cl, 4 dwg

FIELD: heating.

SUBSTANCE: invention relates to intensification methods of liquid heat exchange with a smooth surface and can be used at manufacture of smooth surface cooling systems, namely at manufacture of cooling systems of microelectronic equipment. Multiple hydrophobic areas with diameter d, which are located in a staggered order at distance L from each other, are formed on a smooth surface being cooled. Diameter d of each hydrophobic area and distance L of hydrophobic areas from each other are determined based on properties of the liquid and the surface being cooled.

EFFECT: intensification of heat exchange at boiling on a smooth surface being cooled with minimum costs for treatment of the surface being cooled and providing uniform heat exchange.

3 cl, 2 dwg, 1 ex

FIELD: heating.

SUBSTANCE: claimed device comprises the case with the circular helical channel with crosswise webs with slits made therein. Note here that the grooves are made on the surface of slits in lengthwise webs.

EFFECT: higher efficiency of cooling and reliability, longer life.

2 cl, 3 dwg

FIELD: heating.

SUBSTANCE: heat exchanger comprises two coaxial tubes, the inner of which consists of alternating converging and diffusing elements provided in the form of lateral surfaces of truncated cones of different lengths interconnected perimeters of large and small bases of the cone, on the outside of which the annular channel formed by the outer side the cone surface and the inner surface of the outer pipe of the heat exchanger is woven metal mesh made of wires with a diameter of 2 mm, placed at an average distance of 2 mm from the outer frustoconical surface of the inner tube.

EFFECT: achieved technical result consists in increasing the heat transfer due to turbulence of flow in the wall region while reducing the hydraulic resistance to the coolant flow.

5 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention is intended for implementation of steam reforming reactions and can be used in chemical industry. Heat exchange reactor comprises multiple bayonet pipes (4), suspended from upper hood (2), extending to level of lower bottom (3) and enclosed in casing (1), having inlet (E) and outlet (S) pipes for flue gases. Heat exchange reactor comprises buttle of pipes of steam generator, formed by multiple vertical pipes (5), suspended from upper hood (2) and enclosed into peripheral space between inner partition (Bi) and vertical wall of casing (1). Inner partition (Bi) comprises a hole (Oi) for passage of flue gases from middle of reactor to peripheral space. Vertical pipes (5) are fed with water from lower distributor (9). Water-steam mixture coming out of vertical pipes (5), is collected in upper collector (7) located above upper hood (2). Lower line (14) connects liquid phase of separation reservoir (6) with upper collector (7). Upper line (13) connects upper collector (7) with steam phase of separation reservoir (6). Steam reforming is carried out at a rate of flue gases in peripheral space from 20 m/s to 80 m/s. Flue gases are fed into heat exchange reactor at temperature close to 1,200 C, and exit it at temperature below 400 C.

EFFECT: invention improves heat efficiency of heat exchange reactor.

7 cl, 2 dwg

FIELD: heating.

SUBSTANCE: method contains arrangement of the grid on the base, made from the first metallic material, and forming the heat radiating cell on the base surface, either by spraying the granular particles, obtained from the second metallic material, the oxide of which has a reflection factor 70% or more, different from the first metallic material, and the particles from the second metal material oxide, either by deposition of metal particles, made from the second metallic material, and their oxidation, at that the formation is carried out so, that the cell contact area with the base is 1 mm2 and less, after which the grid is removed. According to one more embodiment, the method includes forming of the heat radiating cell on the base surface by arc-ion deposition of metal particles, made from the second metallic material, with their distribution over the surface of the base material by applying the shift voltage, and subsequent oxidation of applied metal particles, at that the formation is carried out so, that the cell contact area with the base is 1 mm2 and less.

EFFECT: increase of reliability and strength of the heat-radiating elements over a wide temperature range.

3 cl, 3 ex, 3 tbl, 10 dwg

Radiator // 2634167

FIELD: machine engineering.

SUBSTANCE: radiator is described, made of thermally conductive material containing a heat absorbing surface in contact with the heat-generating surface of the electronic component and a heat-distributing surface. The heat-distributing surface is parallel ribs that are perpendicular to the heat absorbing surface of the radiator. The ribs form channels for the passage of cooling medium. Each channel wall alternates with flat and concave surfaces in such a way that the cross section of the channel changes along the whole path of cooling medium movement.

EFFECT: intensification of heat transfer from the radiator to the cooling medium.

6 cl, 8 dwg

FIELD: heating system.

SUBSTANCE: on longitudinal ribs of intensifying micro-ribbed heat exchange surfaces perform many longitudinal microgrooves, asymmetrically located relative to the plane of longitudinal ribs and having different widths. The width of the micro-groove is the smaller, the closer it is to the apex of the rib.

EFFECT: increasing the efficiency of evaporation by creating a micro-ribbed surface with a large area of three-phase contact lines.

5 dwg

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