Abstract: Disclosed are a heat radiation dissipation film structure and a method of making the same. The heat radiation dissipation film structure includes a substrate which is electrically insulated and a heat radiation dissipation film disposed on the substrate. The difference between the thermal expansion coefficients of the substrate and the heat radiation dissipation film is not greater than 0.1%. The heat radiation dissipation film contains the crystal of at least one metal and nonmetal with a specific microscopic surface structure which is formed by spraying and coating the heated mixture onto the substrate under high pressure. The heat radiation from the heat radiation dissipation film is directed from the interface of the heat radiation dissipation film and the substrate towards the substrate.

Abstract: The present invention relates to a plate package for a plate heat exchanger and a plate heat exchanger made of materials with improved anti-corrosion properties for highly corrosive fluids such as hydrochloric acid.

Abstract: A method of fabricating a component is provided. The component includes a substrate that has at least one interior space. The method includes forming one or more grooves in the component. Each groove extends at least partially along an outer surface of the substrate and narrows at an opening thereof, such that each groove is re-entrant shaped. A cross-sectional area A of each groove is in a range of about 2 to about 3 times an area R=W*D, where W is the width of the opening and D is the depth of the re-entrant-shaped groove. Components with grooves formed in the substrate and components with grooves formed at least partially in a structural coating are also provided.

Abstract: A high-temperature and high-pressure corrosion-resistant process heat exchanger for a nuclear hydrogen production system decomposes sulfite (SO3) using heat from a high-temperature gas-cooled reactor to thereby produce sulfide (SO2) and oxygen (O2). The process heat exchanger comprises second and third system coolant channels, each of which is defined by a heat transmission fin, which is bent in a quadrilateral shape, and heat transmission plates, and has increased corrosion resistance thanks to ion-beam coating and ion-beam mixing using a material having high corrosion resistance. The third system coolant channel includes reaction catalysts for SO3 decomposition, and is made of a super alloy. Thus, a system differential pressure between the second and third system coolant channels can be greatly maintained at a high temperature of 900° C. or higher.

Abstract: Provided is an original plate material for a heat-exchanging plate fabricated by press working, and also provided is a method for fabricating the original plate material. An original plate material (2) for a heat-exchanging plate (4) is a flat plate material (1) made of titanium on the surface of which convex parts and concave parts are formed, and the heat-exchanging plate (4) is then fabricated by press working the original plate material (2). The convex parts (5) and the concave parts (6) are formed in a manner such that the shape parameter defined by (Rz×L/P) is 12 ?m or less, where Rz (?m) denotes the height of the convex parts (5), L (?m) denotes the width of the concave parts (6), and P (?m) denotes the pitch between neighboring convex parts (5).

Abstract: The invention is directed to an article with a liquid-impregnated surface, the surface having a matrix of features thereupon, spaced sufficiently close to stably contain a liquid therebetween or therewithin, and preferable also a thin film thereupon. The surface provides the article with advantageous non-wetting properties. Compared to previous non-wetting surfaces, which include a gas (e.g., air) entrained within surface textures, these liquid-impregnated surfaces are resistant to impalement and frost formation, and are therefore more robust.

Abstract: The invention is directed to an article with a liquid-impregnated surface, the surface having a matrix of features thereupon, spaced sufficiently close to stably contain a liquid therebetween or therewithin, and preferable also a thin film thereupon. The surface provides the article with advantageous non-wetting properties. Compared to previous non-wetting surfaces, which include a gas (e.g., air) entrained within surface textures, these liquid-impregnated surfaces are resistant to impalement and frost formation, and are therefore more robust.

Abstract: Systems and fabrication methods are disclosed for a heat spreader to cool a device. The heat spreader has first and second opposing proximal surfaces defining a chamber having a liquid therein; and one or more structures mounted in the chamber to induce a liquid flow pattern during a boiling of the liquid to distribute heat.

Abstract: Disclosed herein is an apparatus including a plurality of nano-coated, porous integral fins and/or grooves on the evaporator tubes. In some examples, the apparatus is an evaporative cooler, such as a horizontal-tube, falling-film evaporator. In some examples, the evaporator tubes are in either a horizontal and/or tilted and/or vertical position. Also disclosed are methods of using the disclosed apparatus, such as a cooling device including as an evaporative cooler.

Abstract: A heat transfer device includes a plurality of heat transfer walls configured to separate a first fluid and a second fluid. A heat transfer enhancing system is provided to one or more heat transfer walls. The heat transfer enhancing system includes a plurality of micro turbulating particles bonded to the one or more heat transfer walls using a binding medium.

Abstract: A heat dissipation apparatus with coarse surface capable of intensifying heat transfer comprises a base plate, a plurality of plate members, a flow passage, and a heat transfer reinforced unit; the plate members each extend upright from the base plate in parallel; the flow passage is formed between any two adjacent plate members; the heat transfer reinforced unit is provided at the first surface and/or the second surface and further comprises at least a raised part being disposed slightly upright from the respective surface and spacing apart a distance from each other, and a plurality of fish-scale-like parts each being disposed on the respective surface next to the respective raised part, providing a recess toward said surface with an inclining angle to the surface and having an edge such that a sharp end is formed by every two adjacent fish-scale-like parts and disposed at an intersection of the respective edge of the two adjacent fish-scale-like parts, wherein the raised part and the fish-scale-like parts

Abstract: The present invention discloses a condensing tube and a filtration module thereof. The condensing tube comprises a hollow body having a central hollow compartment; a porous covering layer having gas permeability but being liquid impermeable; and a condensation chamber, being a space formed between the hollow body and the porous covering layer wherein a plurality of fins are provided radially along the hollow body in the condensation chamber to divide the condensation chamber into a plurality of condensation compartments.

Abstract: A heat dissipation unit and a manufacturing method thereof and a thermal module thereof. The heat dissipation unit includes a metal main body having a chamber, an oxide coating and a working fluid. The oxide coating is coated on wall surface of the chamber instead of capillary structure. The oxide coating serves to enhance vapor/liquid circulation efficiency of the working fluid in the chamber of the heat dissipation unit so as to increase heat dissipation efficiency.

Abstract: A method for producing a plate with a first face with protrusions confined by first and second grooves includes steps of: etching recessed zones into a plate; depositing a photoresist layer on the plate; forming a passivation layer over the photoresist layer; removing the passivation layer at the bottom of the recessed zones; electroplating metal in the recessed zones; removing the passivation layer; removing the photoresist layer; and removing the semiconductor material to expose the first and second grooves.

Abstract: A penetration assembly for a cryostat is presented. The penetration assembly includes a wall member having a first end and a second end and configured to alter an effective thermal length of the wall member, where a first end of the wall member is communicatively coupled to a high temperature region and the second end of the wall member is communicatively coupled to a cryogen disposed within a cryogen vessel of the cryostat.

Abstract: A total heat exchange element includes a sheet-like partitioning member and space holding members on both sides of the partitioning member to form air paths and performs a heat exchange via the partitioning member between an air flow flowing through an air path formed on one side of the partitioning member and an air flow flowing through an air path formed on other side of the partitioning member. The partitioning member and the space holding members are bonded by a water-solvent adhesive in which a water-soluble moisture-absorbing agent is dissolved.

Abstract: A soldered aluminum heat exchanger, having tubes made of a core material through which tubes a coolant flows, and the tubes being connected to at least one header by means of an inner soldered joint; having a protective plating on the inner face of the core material comprising aluminum and using four-layer technology; having an inner solder plating on the protective plating; and having an outer solder plating on the outer face of the tube facing away from the coolant face.

Abstract: A coiled heat exchanger having a plurality of tubes which are wound around a core tube is disclosed. The coiled heat exchanger having a casing which delimits an outer space around the tubes, and wherein a first and a second component of the coiled heat exchanger are composed of different materials.

Abstract: An insert for reducing sulfidation corrosion and depositional fouling is disclosed. The insert is formed from a corrosion and fouling resistant steel composition containing a Cr-enriched layer and having a surface roughness of less than 40 micro inches (1.1 ?m).

Abstract: A heat exchanger having an extended surface plate includes a plurality of heat exchanging bodies having therein flow paths along which a heat transfer medium flows, and extended surface plates each disposed between the heat exchanging bodies and having inclined surfaces in horizontal and vertical directions. Also disclosed is a dehumidifier having the heat exchanger. Moisture in the air may be effectively absorbed by a dehumidifying liquid, and the heat exchanger may have enhanced structural strength.

Abstract: A metallic heat exchanger tube has fins which run helically around the outside of the tube, are molded integrally therefrom and are of continuous design and the fin base of which protrudes substantially radially from the tube wall, and with primary grooves located between respectively adjacent fins. At least one undercut secondary groove is arranged in the region of the groove base of the primary grooves. The secondary groove is delimited toward the primary groove by a pair of mutually opposite material projections formed from the material of respectively adjacent fin bases and the cross-section thereof is varied at regular intervals without having an influence on the shape of the fins. There is a spacing between the opposite material projections, the spacing being varied at regular intervals, as a result of which local cavities are formed.

Abstract: A heat exchanger is disclosed. The heat exchanger may have an inlet configured to receive a first fluid and an outlet configured to discharge the first fluid. The heat exchanger may further have at least one passageway configured to conduct the first fluid from the inlet to the outlet. The at least one passageway may be composed of a graphite foam and a layer of graphite material on the exterior of the graphite foam. The layer of graphite material may form at least a partial barrier between the first fluid and a second fluid external to the at least one passageway.

Abstract: In one embodiment, there is provided a heat radiating component. The heat radiating component includes: a base material made mainly of copper; an electroplated aluminum layer that covers at least a part of a surface of the base material; and an alumite layer formed on the electroplated aluminum layer and formed by anodic-oxidizing the electroplated aluminum layer.

Abstract: A low-heat-transfer coupling or assembly is configured to mechanically couple together a pair of mating parts, one of which may be in a heat-producing environment. By roughening at least part of the surface of one of the parts, the contact area between the mating parts can be reduced, while still maintaining the structural integrity of the connection. The roughening can be a knurling process of all or part of the mating surface on one of the parts. This can produce a series of recesses on the surface that are in contact with the other part. The recesses can be small enough, interspersed with non-etched areas of the contact surface, that structural integrity of the coupling between the parts is still maintained. The coupling may be between a leading edge of an aircraft control surface, such as a missile fin, and a body of the control surface.

Abstract: An improvement is provided to a pressurized close-cycle machine that has a cold-end pressure vessel and is of the type having a piston undergoing reciprocating linear motion within a cylinder containing a working fluid heated by conduction through a heater head by heat from an external thermal source. The improvement includes a heat exchanger for cooling the working fluid, where the heat exchanger is disposed within the cold-end pressure vessel. The heater head may be directly coupled to the cold-end pressure vessel by welding or other methods. A coolant tube is used to convey coolant through the heat exchanger.

Abstract: A heat-dissipating unit having a hydrophilic compound film and a method for depositing a hydrophilic compound film are disclosed. The heat-dissipating unit includes a metallic body having a chamber and a working fluid. The chamber has a liquid-guiding structure constituted of an evaporating portion, a condensing portion and a connecting portion. At least one hydrophilic compound film is coated on surfaces of the chamber and the liquid-guiding structure. By this arrangement, the flowing of the working fluid in the heat-dissipating unit is enhanced to improve the heat-conducting efficiency of the heat-dissipating unit.

Abstract: A heat exchange member comprising a liquid layer and a solid layer capable of conducting a heat exchange reaction with the liquid layer upon their solid-liquid contact at an interface between the solid layer and the solid layer, wherein the solid layer further comprises on a surface thereof which is contacted with the liquid layer a surface coating layer capable of reducing a difference of the vibration between a thermal vibration of the solid and a thermal vibration of the liquid, and the surface coating layer comprises a plurality of fibrous structures arranged on a surface of the solid layer, and a heat exchange apparatus using the heat exchange member.

Abstract: Systems and methods for controlling the temperature of items such as a sample in a vessel or a specimen, in a thermal bath using thermally efficient pellets as the thermal media. The pellets are typically oblong metallic or oblong metallic-coated pellets with rounded edges, a hardened surface, a smooth polished finish, and characteristics that enable efficient thermal communication between the bath's thermal source, the pellets, and the items that are inserted into the mass of pellets. Further, the pellets are dry and moisture and gas impermeable, and they resist microbial growth and are readily decontaminated by several methods including applying an antimicrobial compound to the pellets. The thermal source is controlled to achieve the desired temperature of the items inserted into the pellets.

Abstract: A total heat exchanger of the present invention facilitates circulation of two types of air currents separated by a partition plate and conducts heat exchange of sensible heat and latent heat of the two types of air currents across the partition plate, wherein the partition plate has a porous resin base material layer, a fissured layer having a thickness of 2 ?m or more and 50 ?m or less and composed of a hydrophilic moisture-permeable resin, and a nonporous hydrophilic moisture-permeable resin film layer having a thickness of 0.5 ?m or more and 10 ?m or less laminated in this order. The total heat exchanger of the present invention can prevent reduction in performance even in an environment of repeated condensation and has a high total heat exchange efficiency.

Abstract: A heat retainer for a hot blast stove of a blast furnace, the heat retainer adapted to function without decomposition at temperatures of about 1200° C., wherein: at least one surface of said heat retainer is coated with a high radiative and highly-emissive material forming said coating layer; the thickness of said coating layer is critically between 0.02 mm and 3 mm; the heat retainer absorbs energy or emits energy mainly by radiation; and energy of radiation is mainly at a wavelength of 1-5 ?m.

Abstract: According to the invention, in order to prevent a film from forming which obstructs the transfer of heat in heat exchanger pipes, the heat exchanger pipe comprises an external side which is adjacent to the external surface and which is impinged upon by a steam medium, and an inner side which is adjacent to an inner surface and which is impinged upon by a coolant, such that the outer surface is provided with a first layer which reduces the adhesion of the steam on the outer surface and/or the inner surface is provided with a second layer which reduces the adhesion of a coolant to the inner surface and which is embodied as a biocidal layer. The invention relates to a heat exchanger and to the use thereof.

Abstract: A low maintenance condenser for using in commercial refrigeration systems comprising a single metallic flat section having two or more integrally formed pipes for the flowing of a refrigerant fluid and a flat longitudinal heat dissipation section at each side of a pipe, wherein the first end of the first pipe comprising the refrigerant fluid inlet and the second end of the last pipe comprising the fluid outlet, and wherein the first end of the next pipe is connected to the second end of the previous pipe, successively until the last pipe, in order to form a single circuit having a single refrigerant fluid inlet and a single refrigerant fluid outlet.

Abstract: A thermal cracking tube is adapted to suppress pressure losses while maintaining heat transfer promoting effect on the fluid inside the tube. The tube has a plurality of projections rows extending circumferentially along inner surface of the tube orthogonal to or as inclined with respect to the axis of tube, each of the projection rows including a plurality of projections provided on the tube inner surface. The tube is defined by S/10?D=0.2?0.7, h/D=0.02?0.05 and L/?D=0.04?0.5. D is inner diameter of the tube, h is height of projection A arbitrarily chosen in a projection row ?, L is length of circular arc of projection A in a direction orthogonal to tube axis, and S is area of a region R surrounded by projection A, phantom lines L1 and L2 (extending respectively from circumferentially opposite ends of projection A in parallel to tube axis) and projection row ? downstream from projection row ?.

Abstract: A towel dryer includes an aluminum body having an outer surface that supports a towel to be dried. The surface has a degree of reflectance of not less than 80% for more efficient transfer of heat from the body to the towel. The outer body surface is an oxidized surface to resist corrosion, and a clear coating may be provided over the surface.

Abstract: Disclosed are an aluminum alloy material and a plate heat exchanger using the aluminum alloy material, both of which have superior corrosion resistance. Specifically, the aluminum alloy material includes an aluminum alloy base material having an anodic oxide layer with an average thickness of 1 to 20 ?m as its surface layer, an organic phosphonic acid primer coating arranged on the surface of the aluminum alloy base material, and a fluorocarbon resin coating arranged on the surface of the organic phosphonic acid primer coating and having an average thickness of 1 to 100 ?m after drying.

Abstract: A surface coating layer, in contact with a surface of a base material of a heat exchanger, comprises a plurality of composite layers comprising a first layer contacting a surface of the base material, the first layer comprising a first matrix and a first nanobody, and a second layer contacting a surface of the first layer and having an interface with the air, where the first layer and the second layer each include a different amount by volume of the first nanobody and the second nanobody, respectively.

Abstract: Vertically oriented carbon nanotubes (CNT) arrays have been simultaneously synthesized at relatively low growth temperatures (i.e., <700° C.) on both sides of aluminum foil via plasma enhanced chemical vapor deposition. The resulting CNT arrays were highly dense, and the average CNT diameter in the arrays was approximately 10 nm, A CNT TIM that consist of CNT arrays directly and simultaneously synthesized on both sides of aluminum foil has been fabricated. The TIM is insertable and allows temperature sensitive and/or rough substrates to be interfaced by highly conductive and conformable CNT arrays. The use of metallic foil is economical and may prove favorable in manufacturing due to its wide use.

Abstract: The invention is directed to methods for preparing a planar membrane module, a planar membrane module obtainable by said methods, methods for preparing a heat exchanging module, and a heat exchanging module obtainable by said methods. In one aspect the method of the invention comprises: providing a solid state planar membrane; injection moulding a potting material into one or more potting frames for supporting said membrane; assembling, preferably by hot pressing, the one or more potting frames with the solid state planar membrane, thereby forming a membrane frame; optionally providing a spacer at least at one side of the planar membrane; and joining a stack of said membrane frames in a gastight manner to form a planar membrane module, said joining comprising welding of potting material.

Abstract: A metallic tube for heating a medium or subject outside thereof or inside it by transfer of heat energy through walls of the tube, in which heat is absorbed or emitted at least to a substantial degree by radiation on one or both of the inner and outer surfaces of the tube, is of a material forming a layer of essentially Al2O3 on the surfaces thereof when heated to at least approximately 750° C. At least one of the external and the internal surface of the tube is coated by one of a metal, metal alloy and metal compound, which after oxidation forms a layer having an emissivity coefficient exceeding 0.7, or by a layer essentially consisting of a metal oxide which has an emissivity coefficient exceeding 0.7.

Abstract: A method and device for reducing sulfidation corrosion and depositional fouling in heat transfer components within a refining or petrochemical facility is disclosed. The heat transfer components are formed from a corrosion and fouling resistant steel composition containing a Cr-enriched layer and having a surface roughness of less than 40 micro inches (1.1 ?m).

Abstract: An aluminum alloy heat exchanger is produced by applying a coating material that is prepared by adding a binder to a mixture of an Si powder and a Zn-containing compound flux powder to a surface of an aluminum alloy refrigerant tube, assembling a bare fin that is formed of an Al—Mn—Zn alloy with the refrigerant tube, and brazing the refrigerant tube and the bare fin by heating in an atmosphere-controlled furnace, the refrigerant tube being an extruded product of an aluminum alloy that comprises 0.5 to 1.7% (mass %, hereinafter the same) of Mn, less than 0.10% of Cu, and less than 0.

Abstract: Improvements in tubes, which increase the heat exchange capacity of tubular heat exchangers using the tubes, are described. These improvements involve the use of one or more external surface enhancements, optionally combined with an internal enhancement and/or differing tube geometries. These improvements apply, for example, to internal condensers, including those in which the tube bundles are oriented vertically, in vapor-liquid contacting apparatuses such as distillation columns.

Abstract: Method for producing a heat exchanger with the following steps: a) hot dip refining a steel sheet to form a corrosion-protection layer (3), wherein the corrosion-protection layer (3) contains zinc and between 0.5% and 60% aluminum; b) removal of the corrosion-protection layer (3) from one side of the steel sheet; c) production of a heat exchanger tube (2) from this steel sheet, wherein the corrosion-protection layer (3) is arranged on the outside; d) provision of ribs (6) of aluminum or an aluminum alloy; e) provision of a flux; f) provision of a filler material (8) containing aluminum and silicon in the connecting region between the ribs (6) and the outside of the heat exchanger tube (2); g) connection of the heat exchanger tube (2) to the ribs (6) in a brazing operation.

Abstract: Entrainment heat sink devices and methods of forming entrainment heat sink devices are described herein. One or more method embodiments include forming an opening through a first material, forming a dimple having a trapezoidal-cross section in the first material such that the opening is located on a side wall of the trapezoidal cross-section, and attaching the first material to a second material, wherein the first material or the second material has a trench formed therein and the first material is attached to the second material such that the trench is in fluidic communication with the dimple.

Abstract: A heat pump is provided. The heat pump may include an outdoor heat exchanger that performs a heat exchange operation between refrigerant and outdoor air. The outdoor heat exchanger may include a refrigerant tube that guides refrigerant therethrough, and one or more fins coupled to the refrigerant tube. One face of each of the fins may be coated with a water repellent coating material and another face thereof may be coated with a hydrophilic coating material. An area coated with the water repellent coating material may be greater than an area coated with the hydrophilic coating material.

Abstract: An antimicrobial coating slurry includes about 15.5 wt % of a wetting agent, about 6.0 wt % of an insolubilizer, about 1.1 wt % of a biocide agent, and about 7.8 wt % of an inorganic material that includes lithium oxide and the balance water. The slurry is applied to a heat exchanger surface, cured, and washed to form a hydrophilic coating that includes lithium silicate. The hydrophilic coating provides improved moisture wicking and a reduced dissolution rate of biocide, which is held within a lithium silicate matrix.

Abstract: The invention relates to a plate heat exchanger (9) with a plurality of heat exchanger plates (1, 13), each comprising at least one section showing indentations (2, 3, 14, 15), intended to be placed against corresponding indentations (2, 3, 14, 15) of a heat exchanger plate (1, 13) of a corresponding design. The heat exchanger (9) has a first type of indentations (2, 14) and a second type of indentations (3, 15), wherein the number of said first type of indentations (2, 14) and said second type of indentations (3, 15) are differing.

Abstract: A heat sinking element and a method of treating a heat sinking element are provided. The heat sinking element includes a metal substrate. The metal substrate is mainly composed of aluminium. A surface of the metal substrate has a plurality of micro-nano holes and a diameter of the micro-nano holes is smaller than 300 nm. The method of treating a heat sinking element includes performing an oxidation process and an etching process on the metal substrate so as to form the plurality of micro-nano holes.

Abstract: Heat transfer apparatuses and systems are provided. A heat transfer apparatus (100) can include a thermal conduit (110) having a first end (120) and a second end (130). The thermal conduit can be disposed at least partially within an electronic device enclosure (140). A non-heat conductive material (150) can be disposed at least partially about at least a portion of the thermal conduit.

Abstract: Herein disclosed is a heat exchanger. The heat exchanger comprises at least one pipe having a centerline, an inlet and an outlet; and a multiplicity of tubes, wherein each tube comprises a centerline, an inner surface, an outer surface, and groves; wherein the multiplicity of tubes are placed inside the pipe and the centerline of each tube is perpendicular to the centerline of the pipe. Herein also disclosed is a heat exchange system. Such a system comprises the heat exchanger as described herein, wherein the heat exchanger is configured to receive an incoming feed stream and to discharge a vapor stream. Herein also described is a process that utilizes the heat exchanger disclosed herein. Such a process comprises the separation of a volatile component from a non-volatile component in a mixture. In some cases, the non-volatile component comprises a salt or a sugar and the volatile component comprises water.