Abstract: A turbofan gas turbine engine comprises, in axial flow sequence, a heat exchanger module, a fan assembly, a compressor module, and a turbine module. The fan assembly comprises a plurality of fan blades defining a fan diameter (D), and the heat exchanger module comprises a plurality of heat exchanger elements. The heat exchanger module is in fluid communication with the fan assembly by an inlet duct, with the heat exchanger module having an axial length along a central axis between an upstream-most face of the heat exchanger elements and a downstream-most face of the heat exchanger elements. The axial length is in the range of 0.1*D to 5.0*D.

Abstract: A heated slurry transport system for receiving, transporting and unloading a cuttings slurry in a non-frozen manner in cold weather environments. The heated slurry transport system generally includes a portable tank having an interior surface, at least one wall, and a rear door. A layer of insulation surrounds at least a portion of the portable tank to help retain heat within the portable tank. A heating unit is attached to the portable tank and adapted to heat a fluid that is transferred through at least one heat loop attached to the portable tank to heat the interior of the portable tank and the contents of the portable tank.

Abstract: A process heat exchange rod for cooling or heating liquids in a process vessel. The rod may have a linear form and extend downward through an upper wall of the process vessel into proximity with the lower floor. The rod internally defines a circulatory flow path for the heat exchange medium, including an outer jacket and a flow diverter having a central through bore and external helical flutes. Heat exchange medium travels down through the central through bore and then back up through helical grooves formed between the flow diverter and the outer jacket, or vice versa. Accurate heating or cooling of the process fluid is attained by modification of the configuration of the heat exchange rod as well as the flow rate and temperature of the heat exchange medium. The components may be injection molded of a polymer, often transparent, having a high heat transfer coefficient.

Abstract: A coolant-filled heat exchanger is provided. The heat exchanger includes an inner u-shaped tube having first, second, and third inner tube portions defining an outer surface. The heat exchanger includes an outer u-shaped tube having first, second, and third outer tube portions defining an inner surface. The first, second, and third inner tube portions are disposed within the first, second, and third outer tube portions, respectively. An interior region is formed between the outer surface of the inner u-shaped tube and the inner surface of the outer u-shaped tube. The heat exchanger includes a mounting plate having first and second apertures. The first and second outer tube portions extend into the first and second apertures, respectively, and are coupled to the mounting plate. The interior region is adapted to be filled with a coolant.

Abstract: A device for the transfer of heat to control the temperature of batteries and components of the power electronics, particularly for an electric vehicle or a hybrid vehicle, includes an inlet for a fluid and an outlet for the fluid as well as at least two fluid-conducting plate-shaped heat exchanger elements, of which a first plate-shaped heat exchanger element and a second plate-shaped heat exchanger element have planar contact with one another for the transfer of heat. In doing so, the second plate-shaped heat exchanger element is formed for planar contact with a heat transfer surface of a battery and/or a component of power electronics. At least one fluid connection is formed between the first plate-shaped heat exchanger element and the second plate-shaped heat exchanger element such that fluid escaping from the first plate-shaped heat exchanger element can flow through the second plate-shaped heat exchanger element.

Abstract: Plastic-powered power generator. In an embodiment, the plastic-powered power generator comprises a primary reactor with an air-fuel distribution assembly configured to supply fluidized polymer, air, and oxidizer to a primary reactor chamber, and an ignition system configured to ignite a mixture of the fluidized polymer, air, and oxidizer. The primary reactor chamber extends into a secondary reactor, to, when ignited, heat air flowing through the secondary reactor from a blower to a heat exchanger. The heated air flow may convert fluid, in a coil within the heat exchanger, into steam, which can drive a turbine to generate electrical power.

Abstract: A heat exchanger extends between a first end and a second end and includes: a central core; and a heat exchange section; wherein the heat exchange section comprises: a primary flow inlet; a secondary flow inlet; a primary flow outlet; a secondary flow outlet; a plurality of primary flow tubes for conveying a primary flow from the primary flow inlet to the primary flow outlet; and a plurality of secondary flow tubes for conveying a secondary flow from the secondary flow inlet to the secondary flow outlet. The primary flow tubes and the secondary flow tubes are grouped together to form at least one strand; and wherein the at least one strand is helically wrapped around the central core.

Abstract: A heat exchanger may include a main body with an inlet plenum and an outlet plenum at a first end, and a header at a second end. At least one elongated shaft may extend from the outlet plenum to the header. At least one heat pipe may be coupled to the header and a portion of each heat pipe may be positioned within a corresponding elongated shaft defining an annular space between each heat pipe and each corresponding elongated shaft. A flow skirt may include a manifold located between the inlet plenum and the outlet plenum of the main body. At least one elongated tube may extend from the manifold. Each elongated tube may be positioned within a corresponding annular space between each heat pipe and each corresponding elongated shaft, dividing the annular space into two concentric annular channels comprising an inner annular channel and an outer annular channel.

Abstract: An evaporator assembly including an inlet header, an outlet header, and an evaporator body extending from the inlet header to the outlet header. The evaporator body defining a channel fluidly connected to the outlet header. The evaporator assembly further includes a feed tube including: an adapter fluidly connected to the inlet header and a perforated tube fluidly connected to the inlet header through the adapter. The perforated tube including a first end attached to the adapter, a second end opposite the first end, and a plurality of orifices fluidly connecting the perforated tube to the channel. The perforated tube extends within the channel.

Abstract: Methods and systems are provided for heat exchangers including a first outer plate, a second outer plate, and an intermediate plate. The intermediate plate is positioned between the outer plates. Fluid flow passages are formed between the intermediate plate and each of the outer plates.

Abstract: An antenna system with integrated electromagnetic interference (EMI) shielded heat sink is disclosed. The system includes an antenna circuit board with a plurality of antenna or radiating elements formed on a common plane comprising a first surface. Circuit elements are placed on a second surface of the antenna circuit board. In addition, the second surface of the antenna circuits board is connected to a pocketed EMI shielding cover with individual shield pockets serving as an EMI shield and a heat sink containing a cooling fluid. At least some adjacent pockets can be in fluid communication with one another.

Abstract: A heat transfer medium liquid circulation flow channel having a first heat exchange unit exchanging heat to a second heat exchange unit is provided, and a fixed amount of first heat transfer medium liquid circulates therein. A feed pipe couples heat source holding second heat transfer medium liquid having temperature difference from the first medium liquid to the heat transfer medium liquid circulation flow channel. The feed pipe is coupled to an inlet end side of the first heat exchange unit and a discharge pipe is coupled to an outlet end side thereof. A necessary amount of second medium liquid is supplied to the inlet end side via the feed pipe so that a detected temperature of the first medium liquid in the outlet end maintains required set temperature. The same amount of the first medium liquid as the supplied second medium liquid is discharged out of the discharge pipe.

Abstract: A system is described herein for repurposing waste heat from a refrigeration cycle to improve the efficiency of the cycle and power electronic devices. The system may include a compressor, a turbine, an accumulator, a condenser, a throttle, and an evaporator. The accumulator may include a high-pressure chamber connected between the turbine and condenser, and a low-pressure chamber connected between the evaporator and the compressor. The high-pressure chamber may be segregated from the low-pressure chamber such that high-pressure refrigerant in the high-pressure chamber is prevented from mixing with low-pressure refrigerant in the low-pressure chamber. The high-pressure chamber and low-pressure chamber may be thermally coupled such that liquid refrigerant in the low-pressure chamber is vaporized by heat exchange with the high-pressure chamber. The turbine may power an electronic component of the refrigerator or may feed electricity back into a community grid power system.

Abstract: The invention concerns a device for distribution of a refrigerant fluid in a header of a heat exchanger comprising at least two conduits (12, 13), an external conduit (12) and an internal conduit (13), with the internal conduit accommodated in the external conduit in such a manner as to form a volume (14) for communication between the internal conduit and the external conduit, the external conduit comprising spraying orifices (120) each having an axis (120A) intersecting a principal lengthwise axis (12A) of the external conduit, the internal conduit comprising at least one communication orifice having an axis intersecting a principal lengthwise axis of the internal conduit. According to the invention, the internal conduit (13) comprises a portion (16) of reduced thickness formed by removal of material from an external face of the internal conduit (13), the external face facing toward the external conduit (12).

Abstract: An aircraft pylon including a heat exchange device having a heat exchanger which includes a first circuit portion ducting a flow of hot air tapped off an engine of the aircraft and a second circuit portion ducting a flow of cold air, the first and second circuit portions of the heat exchanger being coaxial, separated by at least one partition forming an exchange surface, and positioned, at least partially, in the primary structure of the pylon.

Abstract: A cooling apparatus that includes a base plate including two heat exchange units and a cover coupled to the base plate and enclosing the two heat exchange units. A recess is defined in the base plate and between the two heat exchange units. The cover and the base plate define a heat exchange chamber that includes the two heat exchange units. The cover has a first set of openings and a second set of openings, and is coupled to the base plate such that the first set of openings is above a first heat exchange unit and the second set of openings is above a second heat exchange unit. The cooling apparatus further includes a first pumping unit on the cover and over the first set of openings and a second pumping unit on the cover and over the second set of openings.

Abstract: Plastic-powered power generator. In an embodiment, the plastic-powered power generator comprises a primary reactor with an air-fuel distribution assembly configured to supply fluidized polymer, air, and oxidizer to a primary reactor chamber, and an ignition system configured to ignite a mixture of the fluidized polymer, air, and oxidizer. The primary reactor chamber extends into a secondary reactor, to, when ignited, heat air flowing through the secondary reactor from a blower to a heat exchanger. The heated air flow converts fluid, in a coil within the heat exchanger, into steam, which can drive a turbine to generate electrical power.

Abstract: Provided are a heat exchanger capable of cooling a shell plate and having good assemblability and a hot water apparatus having the same. A primary heat exchanger includes a heat exchanging portion, a shell plate, and a shell pipe portion. The shell plate surrounds the heat exchanging portion. The shell pipe portion is for cooling the shell plate. The shell plate includes a front surface portion and a main body portion. The main body portion is installed on the front surface portion and is formed by bending one sheet of plate into a U shape. The shell pipe portion is bent in a U shape along an inner surface of the main body portion and installed on the inner surface.

Abstract: The invention relates to an apparatus for desubliming, condensing or evaporating a fluid. The apparatus includes a chamber and at least one tubular member for desubliming, condensing or evaporating the fluid on the outer surface of the at least one tubular member. The chamber is provided with at least one inlet for the fluid and at least one outlet for the condensate and/or evaporate, and at least one supply and at least one discharge for a cooling and/or heating fluid. The tubular member includes an outer member and an inner member enclosed within the outer member. The inner member is in communication with the supply at a first end. The outer member is in communication with the discharge at a first end. The outer member is closed at a second end. The inner member is open and mouths into the outer member at a second end.

Abstract: A gas turbine engine has a compressor section including a lower pressure compressor and a higher pressure compressor, and a turbine section. A core engine housing surrounds the compressor section and the turbine section. An outer intermediate housing wall defines an internal chamber between the core housing and the outer intermediate housing. A fan rotor and a fan casing surround the fan rotor to define a bypass duct between the fan case and the outer intermediate housing. A heat exchanger is mounted in the internal chamber and receives high pressure air for cooling the high pressure air and delivering the high pressure air into the core engine housing to be utilized as cooling air for a component. Air from the lower pressure compressor is utilized to cool the higher pressure air in the heat exchanger.

Abstract: A heat exchanger for regulating the temperature of objects includes two coolant ports that can interchangeably serve as either a coolant inlet or a coolant outlet. The heat exchanger includes sealedly engaged top, middle, and bottom plates that form passageways that distribute coolant through the heat exchanger. A top manifold is formed between the top and middle plates and is fluidly coupled with a first port, while a bottom manifold is formed between the bottom and middle plates and is fluidly coupled with a second port. The top and bottom manifolds are configured such that, during operation, coolant can be directed from the first port to the second port, or vice versa, thereby enabling the heat exchanger to operate bidirectionally—without materially affecting the temperature regulation effects of the heat exchanger. In this manner, the same heat exchanger construction can be used in multiple orientations within a thermal management system.

Abstract: A heated slurry transport system for receiving, transporting and unloading a cuttings slurry in a non-frozen manner in cold weather environments. The heated slurry transport system generally includes a portable tank having an interior surface, at least one wall, and a rear door. A layer of insulation surrounds at least a portion of the portable tank to help retain heat within the portable tank. A heating unit is attached to the portable tank and adapted to heat a fluid that is transferred through at least one heat loop attached to the portable tank to heat the interior of the portable tank and the contents of the portable tank.

Abstract: A coaxial ground heat exchanger and installation method are disclosed where the heat exchanger has a central core tube that can be provided with a thermally insulating casing and an outer tube that delimits an annular gap which extends radially outwards from the core tube. The core tube and the annular gap can be configured such that a flowable heat transfer medium can flow through. The outer tube is formed by a tubular expandable cover that directly adjoins a wall of a ground heat exchanger borehole when the heat exchanger is installed.

Abstract: A thermoelectric device with multiple headers and a method of manufacturing such a device are provided herein. In some embodiments, a thermoelectric device includes multiple thermoelectric legs, a cold header thermally attached to the thermoelectric legs, and a hot header thermally attached to the thermoelectric legs opposite the cold header. At least one of the cold header and the hot header includes at least one score line. According to some embodiments disclosed herein, this the thermal stress on the thermoelectric device can be greatly reduced or relieved by splitting the header into multiple pieces or by scoring the header by a depth X. This enables the use of larger thermoelectric devices and/or thermoelectric devices with an increased lifespan.

Abstract: An x-ray device is presented. The x-ray device includes a cathode configured to emit an electron beam. Also, the x-ray device includes an anode configured to rotate about a longitudinal axis of the x-ray device and positioned to receive the emitted electron beam, where the anode includes a target element disposed on an anode surface of the anode and a track element embedded in the target element, where the track element is configured to generate x-rays in response to the emitted electron beam impinging on a focal spot on the track element, where at least a portion of the track element is configured to transition from a first phase to a second phase based on heat generated in at least a portion of the track element, and where at least the portion of the track element is configured to distribute the generated heat across the anode.

Abstract: This disclosure provides flow components, methods of additive manufacture, and output manifolds for heat recovery steam generators incorporating flow components. A flow component may include an annular wall that defines a flow path for a fluid. The annular wall may have a normative region and a stress region. The annular wall in the stress region may include a continuous skin to form a portion of the interior wall surface and an additive manufactured mesh adjacent to the continuous skin to the interior of the annular wall. The annular wall in the normative region may have a cross-section with a different structure than the stress region.

Abstract: The present invention relates to a hot water boiler.

Abstract: A cold plate structure in a two-phase cooling system is provided. The cold plate, where the cold plate structure has at least one microchannel with a cross-sectional area along a radial direction, wherein the cross-sectional area expands in a first direction that is substantially tangential to the radial direction and expands in a second direction that is substantially tangential to the radial direction and substantially tangential to the first direction.

Abstract: A coaxial borehole heat exchanger includes an innermost pipe and an intermediate pipe arranged coaxially outside the innermost pipe. The intermediate pipe has an inner surface provided with a plurality of axial grooves, and the inner diameter of the intermediate pipe corresponds to the outer diameter of the innermost pipe. The coaxial borehole heat exchanger further includes an outermost pipe arranged coaxially outside the intermediate pipe, wherein the outermost pipe has an inner surface provided with a plurality of axial grooves, and wherein the inner diameter of the outermost pipe corresponds to the outer diameter of the intermediate pipe, wherein the innermost pipe and the plurality of axial grooves of the outermost pipe define liquid flow channels, and wherein the axial grooves of the intermediate pipe define a thermal insulation layer between the axial grooves of the outermost pipe and the innermost pipe. A method of producing a coaxial borehole heat exchanger is also presented herein.

Abstract: A plate heat exchanger that evenly distributes an inflowing fluid to heat exchange channels located within the plate heat exchanger. The plate heat exchanger includes a fluid distributor in order to evenly distribute the inflowing fluid throughout the heat exchange channels. The fluid distributor includes protruding resistors that decrease in size as each protruding resistor is located further away from the inflowing fluid inlet of the fluid distributor.

Abstract: A water heater that can be operated with improved efficiency is provided. The water heater uses a thermally activated sorption heat pump to heat water stored in a tank. A sorbate is endothermically desorbed from a refrigerant, which in turn is released as a gas or vapor. The latent heat of condensing this refrigerant vapor to a liquid is transferred directly to the water in the tank. Ambient air is then used to vaporize the refrigerant liquid. The vapor refrigerant is then exothermically absorbed by the sorbate. The heat released by this absorption is transferred to the water in the tank using a heat transfer fluid. The cycle can then be repeated by desorbing the sorbate again to release the refrigerant as vapor. A heat source is used to provide heat energy to endothermically desorb the sorbate.

Abstract: A solution for dissipating heat generated from high power chip packages, e.g., a fcBGA package, wbBGA package, 2.5D/3D TSV package, PoP, etc. The heat dissipation system may include a high power chip package including a high power chip. A micro-jet may be attached to the high power chip. A micro-pump may be in fluidic communication with the micro-jet. A heat exchanger may be in fluidic communication with the micro-pump. The high power chip package is assembled on the same PCB with the micro-pump and the heat exchanger.

Abstract: A heat exchanger arrangement, especially for a vehicle heater, includes a pot-like heat exchanger housing (12) extending in the direction of a longitudinal axis (L) of the housing. The heat exchanger housing includes an outer housing part (14) with the outer circumferential wall (18) and with an outer bottom wall (20) as well as an inner housing part (16) with the inner circumferential wall (22) and with an inner bottom wall (24). A heat carrier medium flow connecting piece (50, 52), open towards the heat carrier medium flow space, is provided at an axial end area (44) of the outer circumferential wall of the outer housing part, the end area being located at a distance from the outer bottom wall. A waste gas flow connecting piece (30) is open towards an interior space (26) of the heat exchanger housing, which interior space is enclosed by the inner wall.

Abstract: Provided is a heat pump device configured to collect heat both from outside air and another heat source. A controller calculates heat exchange amounts with use of heat exchange performance of each of an air heat-source heat exchanger and an underground heat-source heat exchanger in addition to an outside air temperature and an underground temperature. Then, in switching between a simultaneous operation of causing refrigerant to flow through both of the air heat-source heat exchanger and the underground heat-source heat exchanger and a single operation of selecting the air heat-source heat exchanger or the underground heat-source heat exchanger to cause refrigerant to flow therethrough, the controller selects a heat source having a larger calculated heat exchange amount. In this manner, an appropriate heat source suitable for operation conditions can be selected.

Abstract: A heat-exchange apparatus and a mounting component set for installation into storage tanks. The heat-exchange apparatus comprises a heat-exchanging component, a coupling manifold configured to engage with the heat-exchanging component, and a hollow, elongate, flow-directing element that delivers fluid to the heat-exchanging component. The mounting component set comprises an inner flange for engaging the inner wall of the storage tank, an outer flange for engaging the outer wall of the storage tank, and at least one gasket cooperable with one of the flanges. The heat-exchange apparatus sealably engages the outer flange such that the heat-exchanging component extends into the interior of the tank, and the coupling manifold is interconnectable to an external supply of heat-exchange fluid.

Abstract: A refrigerant guiding pipe having a pipe wall in which an inner chamber is formed, an opening formed in the pipe wall, and a refrigerant guiding portion. At least a part of the refrigerant guiding portion is disposed to be substantially inclined with respect to an axial direction of the refrigerant guiding pipe to guide refrigerant passing through the opening. The refrigerant guiding pipe can distribute and guide refrigerant well to help avoid non-uniform distribution of refrigerant due to layering of gaseous refrigerant and liquid refrigerant.

Abstract: An electromagnetic oil tank heating unit and an electromagnetic oil tank heating system comprising multiple units of electromagnetic oil tank heating units is provided. Each electromagnetic oil tank heating unit comprises a generator capable of generating high frequency electrical current connected to a transformer and a cooling unit, an induction plate with induction coil embedded therein, connected to the transformer and at least one cooling unit, providing cooling to the transformer and the induction plate. The generator, the transformer, the induction plate and the cooling unit are arranged on a frame equipped with wheels to permit mobility of the unit to allow moving the heating unit to a specific location along the length of an oil tank. The frame is configured to include a mechanical means allowing the induction plate supported thereon to move up and down, and forward and backward relative to the oil tank.

Abstract: To suppress 3D or convex growth and ensure a high flatness, an apparatus for producing an SiC single crystal includes: a container which holds an SiC solution, a portion for maintaining the solution in the container at a suitable temperature, a shaft having a lower end part acting as a portion for holding an SiC seed crystal in planar contact with an overall back surface of a crystal growth face and acting as a portion for cooling the SiC seed crystal, and a portion of the holding shaft for enabling an SiC single crystal to continuously grow at the crystal growth face by maintaining the crystal growth face brought into contact with the solution, a lower end part of the shaft having a portion for obtaining a uniform in-plane temperature distribution of the crystal growth face brought into planar contact, and a method for the same.

Abstract: A containment cellar collects petroleum products leaked in a vicinity of a conductor pipe at an oil drilling site. The containment cellar has a body, a pipe, and a pumping orifice. The body has bottom and side surfaces to define an interior chamber to surround a length of the conductor pipe. The bottom surface includes an aperture to receive the conductor pipe. The surfaces are composed of materials substantially impermeable to the petroleum products. The side surface has sufficient strength to maintain integrity of the interior chamber when the containment cellar is disposed at least partially beneath a surface of the earth. The pipe extends through the interior chamber. The pumping orifice is coupled with the pipe and adapted for coupling with a pump to extract the leaked petroleum products from the interior chamber.

Abstract: A shell and tube heat exchanger (which can be a boiler) which includes a plenum chamber defined by at least one of the tube-sheets and a diaphragm plate. In this plenum chamber a system of outer and inner annuli around each of the tubes created by a system of baffle tubes that surround each fluid tube and a holes in the thick tube-sheet of the exchanger. This arrangement allows the high pressure cooling fluid in the shell to keep the high temperature low pressure fluid tube inlet, and the associated tube-sheet cool under very high hot fluid flow rates at lower cost, smaller footprint and with lower pressure loss of the low pressure hot fluid than previous art.

Abstract: The invention relates to an improved concentric tube heat exchanger.

Abstract: A heat transfer system having an evaporator, a heat exchanger, and a working fluid that undergoes compression. The heat exchanger includes a first tube made from a steel alloy which is alloyed to facilitate bending, the first tube having a first end connected to the outlet of an evaporator and a second tube having a first end connected to the inlet of the evaporator. The second tube is positioned in thermal contact with the first tube for a portion of the respective lengths of the first tube and the second tube, so as to allow an exchange of heat between the fluid within the tubes.

Abstract: Heat transmission units are known wherein ribs for improving the cooling efficiency extend along the whole length of the flow path of the radiator. According to the invention, it is proposed, while keeping the constructional space at the same size, to provide a larger cooling surface in a first portion, which has a higher temperature gradient, and which is accomplished by a large number of ribs arranged therein, and to omit such ribs or to reduce their number in a region that has a lower temperature gradient, i.e. in a second portion. In this manner, the overall efficiency of such a heat transmission unit is improved.

Abstract: An apparatus for cooling a hot gaseous medium includes a vessel, wherein a bundle of pipes is disposed in a coolant compartment, and wherein a liquid coolant flows around the bundle. The pipes are mounted near upstream ends in a thermal shield and extend through openings in a support plate mounted at a distance from the thermal shield defining a front space between the thermal shield and the support plate in the vessel separated from the coolant compartment. The apparatus permits addition of liquid coolant to the front space. The openings in the support plate are larger than the pipes, defining an annular space. Liquid coolant flows co-current with the hot gaseous medium in the pipes from the front space to the coolant compartment. A skirt type extension surrounds the pipe in the front space to the support plate and having an opening at the thermal shield.

Abstract: A heated energy system includes an integral ceramic insert heat exchanger having an integral ceramic construction and an outer ceramic wall that is helical in shape. When the heat exchanger is positioned within a surrounding fluid path enclosure, the outer ceramic wall forms, with the enclosure, at least one spiral path for flowing products of energy generation. No more than one insert body has an outer wall that is helical in shape that is present along the first length of the surrounding fluid path enclosure. The outer ceramic wall receives heat energy when the products of energy generation flow through the fluid path. A method for fabricating integral ceramic insert heat exchangers includes using a tool having a silicon carbide channel and a cavity channel, the silicon carbide channel extending at least partially outside the cavity channel in directions defined by a rotational plane of the tool.

Abstract: A process for determining the strength of a plate-type heat exchanger includes computing the temperature stresses of the plate-type heat exchanger within the heat exchanger during its operation by a three-dimensional numerical simulation. Based on the computed temperature stresses, the strength of the plate-type heat exchanger is determined. The process for producing a plate-type heat exchanger with separating plates and profiles of metal uses this strength determination for establishing one or more mechanical parameters of the heat exchanger. The heat exchanger is manufactured with the one or more mechanical parameters.

Abstract: A heat exchanger 10 is for use in a geothermal energy system for a building 12, for heating and/or cooling. The exchanger 10 has a flask member 14 which defines a chamber 16 for heat exchange fluid. A supply conduit 22 supplies heat exchange fluid to a first port of the chamber 16, from ground level. An exhaust conduit 26 removes heat exchange fluid from a second port 28. The flow direction can be reversed. A pipe 30 extends from the inlet port 24 to an intermediate position 32, generally at the bottom of the chamber, whereas the outlet port 28 is generally at the top of the chamber. Accordingly, fluid entering the chamber must pass down to the bottom of the chamber, before leaving the pipe 30 and then flowing back up the chamber to the outlet port 28.

Abstract: A cooling system for an electronic display may include a heat collector plate with internal gas and liquid phase lines. The cooling plate may be thermally isolated together with electronic components of the display within an enclosure of the display, while external lines carry liquid and gas phase refrigerant outside the enclosure to and from the heat collector plate. The external lines may be similar in size to each other and may be connected to the heat collector outside the heat collector plate by a manifold. The heat collector plate contacts a base plate of the electronic display in a thermally conductive relation to transfer heat from electronic components within the display to the gas phase refrigerant. Fans may be included for additional convective heat transfer. A single compressor may be fluidly connected to multiple heat collector plates in respective electronic displays.

Abstract: A heat exchanger has an exchanging assembly and a cleaning assembly. The exchanging assembly has multiple exchanging tubes. Each exchanging tube has an outer tube and an inner tube inserted into the outer tube. The cleaning assembly is connected to the exchanging assembly and has a front connecting board, a rear connecting board, a moving board, multiple brushing elements and a drive device. The moving board is mounted movably on the exchanging tubes between the connecting boards. The brushing elements are mounted in the moving board and contact with the exchanging tubes. The drive device is mounted with the connecting boards and the moving board to drive the moving board to move along the exchanging tubes.

Abstract: A heat collector includes a heat sink. A recess in the heat sink either forms or receives internal gas and liquid phase lines. A manifold may be integrally formed in the heat sink or may be added on. The manifold combines separate input and output connections into a composite input and output connection. An internal composite line may include the internal gas and liquid phase lines and may be connected to the composite connection of the manifold. The internal liquid phase line is fluidly connected to the internal gas phase line in a transition region of the composite line. Advantageously, the internal liquid phase line may be disposed inside the internal gas phase line for protection and positive heat transfer effects. A cover may hold the composite line in the recess and provide good thermal contact between the lines and the heat sink.