Abstract: Coatings for enhancing performance of materials surfaces, methods of producing the coating and coated substrates, and coated condensers are disclosed herein. More particularly, exemplary embodiments provide chemical coating materials useful for coating condenser components.

Abstract: An exemplary fin-tube construction includes an outer tube, an inner tube disposed within the outer tube, and a plurality of fins extending from an outer surface of the inner tube to an inner surface of the outer tube. The outer tube includes an inner portion and an outer portion. The inner portion, the inner tube, and the fins are formed at least primarily of a first material. The outer portion is formed at least primarily of a second material.

Abstract: A method for building an aerodynamic structure, an aerodynamic structure, and a vehicle that includes the aerodynamic structure are provided. The method includes providing a structure with at least one substantially-flat exterior surface. The method also includes attaching blocks of rigid fibrous insulation to the at least one substantially-flat outer surface of the structure. Outward-facing surfaces of the blocks of rigid fibrous insulation extend past a target outer mold line of a final aerodynamic shape. The method also includes machining the outward-facing surfaces of the attached blocks to the outer mold line.

Abstract: A heat exchanger assembly includes a main heat exchanger that receives a main hot air; a secondary heat exchanger operatively adjacent to the main heat exchanger; wherein the secondary heat exchanger receives a secondary hot air; wherein the main hot air and the secondary hot air are from two different, direct air sources; wherein a hot air channel of only one of the main and the secondary heat exchangers includes a catalytic coating; and a temperature control that controls the temperature of only one of the main hot air and the secondary hot air into the hot air channel.

Abstract: An anode for an X-ray tube can include a body comprising one or more of a yttrium-oxide derivative, titanium diboride, boron carbide, titanium suboxide, reaction bonded silicon carbide, and reaction boded silicon nitride. Upon collision with an anode, the kinetic energy of an electron beam in an X-ray tube is converted to high frequency electromagnetic waves, i.e., X-rays. An anode with a body from one or more of the above materials can reduce costs and/or weight, extend the life of the anode or associated components (e.g., bearings) and simultaneously provide a high heat storage capacity than traditional molybdenum and tungsten anodes.

Abstract: Brazing sheet material having an aluminium core alloy layer, a first brazing clad layer on one face of the core layer and an inter-layer between the core layer and the first clad layer material. The core layer of aluminium alloy including, up to 0.6% Si, up to 0.45% Fe, 0.6% to 1.25% Cu, 0.6% to 1.4% Mn, 0.08% to 0.4% Mg, up to 0.2% Cr, up to 0.25% Zr, up to 0.25% Ti, up to 0.3% Zn, balance aluminium. The first clad layer is made from 4xxx-series aluminium alloy having 6% to 14% Si and up to 2% Mg, balance aluminium. The inter-layer is made from 3xxx-series aluminium alloy including, up to 0.4% Si, up to 0.5% Fe, up to 0.8% Cu, 0.4% to 1.1% Mn, up to 0.04% Mg, up to 0.2% Cr, up to 0.25% Zr, up to 0.25% Ti, up to 0.3% Zn, balance aluminium.

Abstract: A hot-forming apparatus may be used to produce a press-hardened shaped component from a blank. The hot-forming apparatus may include a furnace for heating the blank and a pressing device for forming and cooling the blank heated in the furnace. The hot-forming apparatus also includes, upstream of the furnace, a preheating roll truing device with a temperature-controllable roller for straightening and preheating the blank. A corresponding method may be used to produce the press-hardened shaped component from the blank.

Abstract: The present disclosure provides an aluminum alloy with enhanced penetration resistance for a heat exchanger, the alloy containing copper (Cu), silicon (Si), and iron (Fe) equal to or smaller than predetermined contents respectively, and further containing zirconium (Zr) and the remainder being aluminum (Al). Further, the present disclosure provides an aluminum extruded tube and/or an aluminum fin with enhanced penetration resistance made of the alloy respectively. Further, the present disclosure provides a heat exchanger comprising the tube and/or fin. Addition and content-control of the alloy element may spread corrosion initiations and suppress intergranular corrosion to create uniform corrosion. In this manner, the present alloy have superior corrosion resistance compared to pitting corrosion of a previous alloy for a heat exchanger, and, at the same time, have an extrusion rate equal to that of the previous A1070.

Abstract: A heat exchanger component of a temperature control system of an electrical energy store may include a carrier material and at least two layers. The at least two layers may include a first layer composed of an electrically insulating material and a second layer that may facilitate temperature control via at least one of cooling and heating the electrical energy store.

Abstract: A heat exchanger for an ice-making machine comprises a generally cylindrical, tubular body defining a generally cylindrical, internal heat exchange surface, and at least one refrigerant circuit comprising at least one refrigerant passage disposed about the outer surface of the tubular body, at least a portion of the refrigerant circuit being brazed to the outer surface of the tubular body.

Abstract: A method of localized cathodic protection of a heat exchanger, includes providing at least one fin formed from a first metal alloy; applying a sacrificial layer of a second metal to at least one region in the at least one fin; and connecting a refrigerant tube to the at least one fin; wherein the sacrificial layer of the second metal includes a metal from one of a zinc alloy or a magnesium alloy.

Abstract: Methods, plate elements and heat/enthalpy exchangers. a) perforating an unformed plate element with defined outer dimensions in any desired area and in any desired dimension; b) covering at least one side of the unformed plate element with a thin polymer film with latent energy exchange characteristics and; c) forming the plate element into a desired shape and a pattern of corrugations and/or embossing. The operations b) and c) may be performed in a different order. For instance, when the plate element is made out of plastic, b) may be performed before c) whereas, when the plate element is made out of aluminum (or plastic), c) may be performed before b). Operations a) and/or b) and/or c) may also, in certain embodiments, be combined.

Abstract: Beverage production device for preparing a liquid extract by interaction between a liquid and food ingredients to form the liquid extract by effect of centrifugation of the liquid passing through the ingredients comprising: a brewing unit (2) for receiving the food ingredients, a collecting unit (18) for collecting the liquid extract centrifuged outside the centrifugal unit, driving means connected to the centrifugal unit for driving the centrifugal unit in rotation, liquid supply means being connected to the centrifugal unit to supply liquid in the centrifugal unit, wherein the collecting unit (18) comprises a heater (10) for heating the liquid supplied in the centrifugal unit, said heater (10) being further arranged to heat the liquid extract after it leaves the brewing unit (2).

Abstract: The present invention relates to hydrophilic coatings for heat exchangers, and methods and compositions for depositing such coatings comprising applying a composition comprising at least one curable polyvinyl alcohol and at least one wetting agent to a surface of a metal substrate and curing the composition on the surface of the metal substrate.

Abstract: A system and method for cooling electronic devices disposed within the inner volume of an enclosure. The inner volume of the enclosure contains one or more single phase or multi-phase thermally conductive fluids and may contain solid or sealed hollow structures that displace and direct thermally conductive fluids.

Abstract: The present invention includes systems and methods for providing cooling channels located within walls of a turbine airfoil. These cooling channels include micro-circuits that taper in various directions along the length and width of the airfoil. In addition, these cooling channels have a variety of shapes and areas to facilitate convective heat transfer between the surrounding air and the airfoil.

Abstract: A heat exchanger has a first plurality of passages extending in a first direction and to receive a first fluid and a second plurality of passages extending in a second direction, and to receive a second fluid, and the first plurality of passages being formed across a cross-sectional face of the heat exchanger, and there being distinct combined flow cross-sectional areas of the first plurality of passages in different locations across the cross-sectional face of the heat exchanger. A gas turbine engine and a method of forming a heat exchanger are also disclosed.

Abstract: A heat exchanger is disclosed. The heat exchanger includes a heat exchange member that includes a first extruded member having a first end and a second end. The first extruded member forms a plurality of fluid passages that are in fluid communication with the first end of the first extruded member and the second end of the first extruded member. At least one of the fluid passages is an inlet fluid passage and at least one of the fluid passages is an outlet fluid passage. A plug is fixedly coupled to the second end of the first extruded member. The plug forms a plug fluid passage that fluidically interconnects the inlet fluid passage at the second end of the first extruded member with the outlet fluid passage at the second end of the first extruded member.

Abstract: Methods and systems of cooling airfoils are provided. The present invention provides systems and methods for providing cooling channels located within walls of a turbine airfoil. These cooling channels include micro-circuits that taper in various directions along the length and width of the airfoil. In addition, these cooling channels have a variety of shapes and areas to facilitate convective heat transfer between the surrounding air and the airfoil.

Abstract: Capillary trap-vapor pumps, systems, methods of heat management, and the like, are disclosed.

Abstract: A method of applying a polymeric film to an article when forming an assembly according to the invention comprises: providing a polymeric film sized to cover at least a portion of at least one exterior surface of the article; providing at least one gaseous agent to form a coating on at least one surface of the polymeric film and/or at least one exterior surface of the article to be contacted when forming an assembly; contacting at least a portion of the polymeric film and at least a portion of the at least one exterior surface of the article; and form-fitting the polymeric film with the portion of the at least one exterior surface of the article.

Abstract: An apparatus and a method of enhancing boiling heat transfer therein capable of increasing both the critical heat flux and nucleate boiling heat transfer of a working fluid. The method includes placing free particles on a surface so as to define narrow corner gaps and cavities at interfaces between the particles and the surface and heating the surface while the surface is contacted by the working fluid to bring the working fluid to a boil, with the result that bubble nucleation is facilitated and nucleate boiling heat transfer from the surface is increased.

Abstract: A meal consumption monitoring and control system is disclosed. The system includes a flat profile scale serving as a coaster for a plate, a cup, or a glass enabled with Bluetooth or other type of wireless connectivity. The scale is connected to an accompanying mobile application installed on a mobile device. The mobile application is connected to the accompanying server-side cloud bases software application. The method for motivating children to consume meal in whole and without significant interruptions includes displaying a children content on the mobile device during the meal consumption, pausing the content when there is a significant delay registered in the meal consumption process, and resuming the content and/or providing certain awards to the child when the child resumes taking meal.

Abstract: A curved, three-dimensional, ordered micro-truss structure including a series of first struts extending along a first direction, a series of second struts extending along a second direction, and a series of third struts extending along a third direction. The first, second, and third struts interpenetrate one another at a series of nodes. The series of first struts, second struts, third struts, and nodes form a series of ordered unit cells within the micro-truss structure. The series of ordered unit cells define a curved surface.

Abstract: A heat exchanger tube that comprises a tubular member having a longitudinal axis and having an inner surface that is divided into at least two regions along the circumferential direction. A first plurality of polyhedrons are formed on the inner surface along at least one polyhedral axis. Each of the polyhedrons have four opposite sides. The polyhedrons have first and second faces that are disposed parallel to the polyhedral axis and have third and fourth faces disposed oblique to the polyhedral axis. The polyhedral axis is disposed at a first helical angle with respect to the longitudinal axis of the tube. A second plurality of polyhedrons is formed on the inner surface adjacent to the first plurality of polyhedrons. The second plurality of polyhedrons is disposed along at least one polyhedral axis. Each of the polyhedrons has four opposite sides. The polyhedrons have first and second faces disposed parallel to the polyhedral axis and have third and fourth faces disposed oblique to the polyhedral axis.

Abstract: A sensor device includes: a sensor portion having a movable thin film and a detection element configured to output a signal corresponding to displacement of the movable thin film; a frame portion disposed to surround an outside of the sensor portion; a circuit board including a circuit configured to process the signal output from the detection element; and a lid portion which is attached onto the frame portion and has a through-hole, in which a functional film having higher hydrophobicity than a surface of the lid portion is provided on at least an inner surface of the through-hole in the lid portion.

Abstract: A condensate drain pan including a drain pan surface, a front wall, including a front wall longitudinal axis, a rear wall, and opposing side walls. The front wall, the rear wall, and the opposing side walls extend from the drain pan surface. The front wall includes a first aperture and a second aperture. The first aperture and the second aperture include an aperture axis.

Abstract: A hollow aluminum structure that will be brazed includes at least one brazing sheet having a filler metal layer clad onto a core layer. The core layer is composed of aluminum or an aluminum alloy containing less than 0.2 mass % Mg. The filler metal layer is composed of an aluminum alloy that contains Si: 4.0-13.0 mass % and Bi: 0.01-0.3 mass %, and further contains Li: 0.004-0.08 mass % and/or Be: 0.006-0.12 mass %, the filler metal layer containing less than 0.1 mass % Mg. The hollow aluminum structure is assembled such that the filler metal layer is present at locations that will form both an interior-facing brazed joint and an exterior-facing brazed joint. Then, flux is applied onto the filler metal layer at the location that will form the exterior brazed joint, and the hollow aluminum structure heated in an inert gas atmosphere to form the interior brazed joint and the exterior brazed joint.

Abstract: A heat conducting module includes a main body. The main body includes a first surface and a second surface. The first surface is thermally connected to a heat absorbing body. The second surface is opposite to the first surface and is fluidly connected to a channel. The second surface has a plurality of grooves disposed along a direction. The channel allows a fluid to flow a long the direction. Each of the grooves includes a first sub-groove and at least one second sub-groove. The first sub-groove at least has a third surface close to the first surface. The first sub-groove at least partially communicates with the second sub-groove, and the second sub-groove is at least partially fluidly connected with the third surface.

Abstract: Process for depositing a corrosion-protection coating on at least one portion of the surfaces of a metallic substrate having at least one cavity with an equivalent diameter emm<2 mm and a length/width ratio of greater than 150, using an aqueous suspension comprising powder of the metal to be deposited on the substrate combined with an agent for protecting the surface of the metal powder, a diluent, and at least one additive, the particles of the suspension each having an equivalent diameter d such that d?emm/10.

Abstract: A laminated header includes a plate-like unit including: bare members having first flow passages formed therein with no brazing material being applied to each of the bare members; and cladding members having second flow passages formed therein with a brazing material being applied to at least a front surface and a back surface of each of the cladding members. The bare members and the cladding members are alternately laminated so that the first flow passages and the second flow passages communicate with each other. A pipe is joined to the plate-like unit under a state in which an end portion of the pipe is inserted into at least one of the first flow passages or the second flow passages. One of the bare members is laminated on an outermost side of the plate-like unit in a laminating direction of the bare members and the cladding members.

Abstract: Enthalpy exchanger elements which allow the creation of enthalpy exchangers whereby the efficiency of sensible energy exchange and latent energy exchange can be varied and controlled and especially improved. Also, a method for the production of enthalpy exchanger elements including: ?a) perforating a flat plate element (1) according to a predetermined perforation pattern (2, 2, . . . ) within the plate outer dimensions, or providing a plate element (1) with an inherent pore structure; ?b) applying to at least one side (1a) of the plate element (1) a thin polymer film (3) with water vapor transmission characteristics; ?c) forming the plate element (1) into a desired shape exhibiting a corrugation pattern (4, 4, . . . ), whereby the polymer film (3) is formed into the same corrugation pattern shape as that of the plate element (1).

Abstract: A method of manufacturing heat dissipation device includes the steps of providing at least one heat transfer unit; further providing at least one frame for connecting to the at least one heat transfer unit; and spot welding the heat transfer unit to the frame at a junction formed therebetween, so that the heat transfer unit is fixedly attached to the frame. With the above method, the steps for assembling the heat transfer unit to the frame are effectively reduced, and the material and production costs for applying adhesive agent or adhesive tape are also saved.

Abstract: An evaporator heat exchanger unit for a heating cooling module for a motor vehicle is disclosed. In one aspect, the evaporator heat exchanger unit includes at least one collector expansion tank for collecting a refrigerant and one evaporator, by which at least a part of the refrigerant can be converted into gaseous form. The evaporator heat exchanger unit also includes a housing enclosing an inner chamber, wherein in the inner chamber, the collector expansion tank, the evaporator, and a cooling medium are arranged, and wherein an expansion organ is arranged on the housing, by which the refrigerant is supplied to the evaporator.

Abstract: A method of making a security mesh comprises forming on a conductive substrate an alumina film having through-holes in which metal, e.g., copper, through-wires are formed. First surface wires are formed on one surface of the alumina film and second surface wires are formed on the second, opposite surface of the alumina film in order to connect selected through-wires into a continuous undulating electrical circuit embedded within the alumina film. The security mesh product comprises an alumina film having a continuous undulating electrical circuit comprising copper or other conductive metal extending therethrough. A stacked security mesh comprises two or more of the mesh products being stacked one above the other.

Abstract: A flow channel member according to the present invention includes a ceramic substrate, a flow channel inside the ceramic substrate through which a fluid flows, and multiple protrusions on an outer surface of the substrate.

Abstract: A method for forming features in an exterior surface of a heat transfer tube includes forming a plurality of channels into the surface, where the channels are substantially parallel to one another and extend at a first angle to a longitudinal axis to the tube. A plurality of cuts are then made into the surface substantially parallel to one another and extend at a second angle to a longitudinal axis to the tube different from the first angle. Individual fin segments extend from the surface and are separated from one another by the channels and the cuts. The fin segments have a first channel-adjacent edge adjacent substantially parallel to the channel, a first cut-adjacent edge substantially parallel to the cut, and a corner formed by a second channel-adjacent edge and a second cut-adjacent edge. A tube formed using this method can be used as a condenser tube.

Abstract: A cooling system includes a first dewar configured to house a first optical imaging device, a second dewar configured to house a second optical imaging device, and a Stirling cycle refrigerator. The Stirling cycle refrigerator can include a compressor, a first expander in fluid communication with the compressor and in thermal communication with the first dewar, and a second expander in fluid communication with the compressor and in thermal communication with the second dewar.

Abstract: A metal heat exchanger tube for the evaporation of liquids on the outside of the tube, having a tube axis, a tube wall, and integrally formed ribs that run circumferentially on the outside of the tube. The ribs have a rib foot, rib flanks, and a rib tip, wherein the rib foot projects substantially radially from the tube wall. A respective groove is located between every two ribs that are adjacent to one another in the axial direction. At least first, second, and third lateral material projections, which are formed from the material of the ribs, are arranged on a first, second, and third level on the rib flanks in such a way that the grooves are largely covered by all of the material projections. The first, second, and third lateral material projections are formed on levels that are in each case differently spaced apart from the tube wall in the radial direction.

Abstract: An exemplary heat exchanger is configured for removing heat energy from a heat generator. The heat exchanger including at least one conduit for a working fluid, which is arranged in an upright position of at least 45°, each conduit having an exterior wall and at least one interior wall for forming at least one evaporator channel and at least one condenser channel within the conduit. Furthermore, the heat exchanger includes a first heat transfer element for transferring heat into the evaporator channel and a second heat transfer element for transferring heat out of the condenser channel.

Abstract: A heat exchanger includes fins that are arranged in a direction orthogonal to a direction in which air flows and a heat transfer pipe that extends through the fins and that is bonded and fixed to the fins when the heat transfer pipe is radially expanded by a pipe-expanding method. Tall projections and short projections are provided on an inner surface of the heat transfer pipe. The tall projections are arranged in a circumferential direction and extend in an axial direction of the heat transfer pipe. The short projections are arranged between the tall projections and extend in the axial direction. Opposing side surfaces of the tall and short projections after the expansion of the heat transfer pipe are so inclined that when extensions are drawn from the side surfaces, the extensions cross each other in an inner region of the heat transfer pipe.

Abstract: A partition member for total heat exchange element (14) includes an ultrafine fiber portion (17) on a porous sheet (18). The ultrafine fiber portion (17) is impregnated with or coated with a moisture permeable substance (21), and water-insolubilized.

Abstract: A cooler is placed on a power module to cool the power module with refrigerant through a refrigerant pipe, and includes a heat transfer plate having a groove into which a cooling pipe is fitted, and a presser plate configured to press the cooling pipe against the groove. The cooler includes a hinge mechanism configured to rotatably attach the presser plate to the heat transfer plate such that the presser plate is switched between an open position at which the groove is exposed and a closed position at which the presser plate covers the groove.

Abstract: A refrigerator includes a body, first and second storage compartments, first and second refrigerating units to cool the first and second storage compartments, and a heat exchanger to individually condense first and second refrigerants of the first and second refrigerating units and a second refrigerant of the second refrigerating unit. The heat exchanger includes first and second headers each having an opening formed in the outer wall, a tube inserted into the first and second headers through the openings, and a baffle disposed in the internal space of the first header so as to partition off the internal space of the first header. The tube includes a plurality of channels spaced apart from each other by a predetermined gap, and the baffle blocks at least one of the plurality of channels.

Abstract: Fins are formed monolithically from the material of a tube body. The fins extend from the tube body outer surface, and include a fin base and a fin top. Wings extending from a fin side surface between the fin base and fin top can produce upper and lower channels between adjacent fins. Depressions can be formed in the fin top with platforms below the depressions. The tube can also include helical ridges on an inner surface of the tube. The tubes are used for heat transfer, and can be included in shell and tube heat exchangers.

Abstract: A unitary graphene-based integrated heat sink comprising a heat collection member (base) and at least one heat dissipation member (e.g. fins) integral to the baser, wherein the base is configured to be in thermal contact with a heat source, collects heat therefrom, and dissipates heat through the fins. The unitary graphene material is obtained from heat-treating a graphene oxide gel at a temperature higher than 100° C., 500° C., 1,250° C., or 2,000° C., and contains chemically bonded graphene molecules having inter-graphene distance of 0.3354-0.4 nm (preferably <0.337 nm). The unitary graphene material is a graphene single crystal, a poly-crystal with incomplete grain boundaries, or a poly-crystal having large grain sizes (e.g. >mm or cm), exhibiting a degree of graphitization preferably from 1% to 100% and a Mosaic spread value less than 0.7 (preferably no greater than 0.4). The finned heat sink may also be made from a filler-reinforced graphene matrix composite.

Abstract: The disclosure pertains to a cooled wall for separating a hot gas flow path of a gas turbine from a cooling flow including at least one turbulator rib extending from the wall into the cooling flow, and having a height, a width for providing heat transfer enhancement for the cooled wall. The turbulator rib has filets at its root with a filet radius. In order to increase the heat transfer enhancement of the turbulator rib, the filet at the downstream side of turbulator rib is extending into the cooled wall with a penetration depth. Further, the disclosure relates to specific embodiments in which the cooled wall with turbulator ribs is configured as the sidewall of an airfoil, a combustor wall or a heat shield.

Abstract: Each heat exchange tube of a condenser is formed of a first brazing sheet having a core material and a first brazing material covering the core material. The tank body of each header tank is formed of a second brazing sheet having a core material and a third brazing material covering the core material and being lower in flowability than the first brazing material. In a region of a surface of each protrusion portion facing the corresponding heat exchange tube, the region having a predetermined width as measured from the projecting end, the core materials of the two brazing sheets are brazed together by means of the first brazing material. In the region other than the brazed portion, the core materials of the two brazing sheets are brazed together by means of a fillet formed of a mixture of the first and third brazing materials.

Abstract: A method of controlling moisture reaching a building façade may include providing a weather resistant building shield, the shield including first and second subchannels. The building shield may be disposed parallel to an inner façade and separated from the inner façade by an air gap. The method may include causing input air to flow through the first subchannel at an input air flow rate and causing exhaust air to flow through the second subchannel at an exhaust air flow rate. Controlling at least one of the input and exhaust air flow rates may provide control over moisture content in the gap.

Abstract: To increase a heat exchange capacity of an indoor heat exchanger without increasing a pressure loss inside tubes of an outdoor heat exchanger. A heat exchanger is constituted by an indoor machine equipped with an indoor heat exchanger 10 constituted by a plurality of heat transfer tubes 12A, which have a spiral grooves 13A formed with a predetermined lead angle Ra on inner faces of the tubes and are made to pierce a plurality of fins 11, and an outdoor machine equipped with an outdoor heat exchanger 20 constituted by a plurality of heat transfer tubes 22A which have a lead angle Rb of spiral grooves 23A smaller than that of a heat transfer tubes 10A used for the indoor heat exchanger 10 and are made to pierce a plurality of fins 11.