Abstract: The double tube for heat exchange includes: a spiral pipe having ridges and valleys alternately formed on a circumferential surface along a spiral track thereof and guiding a first fluid therethrough; an outer pipe receiving the spiral pipe axially inserted thereinto and guiding a second fluid along the circumferential surface such that the second fluid exchanges heat with the first fluid; a resistance member protruding from the spiral pipe or valleys to increase time of the second fluid in the valleys and to support the ridges adjacent thereto. Unlike typical double tubes, this double tube can: improve heat exchange efficiency by virtue of the spiral pipe; improve flow directionality of the second fluid; reduce noise through expansion of a space between an end joint of the outer and inner pipe to reduce the pressure of the second fluid; and improve efficiency through resistance members protruding from the valleys.

Abstract: The invention relates to a gas-liquid heat exchanger comprising a first liquid distributor, a second liquid distributor and heat exchange assemblies connecting the first liquid distributor and the second liquid distributor. A flow equalizer plate and a liquid guiding plate are arranged on the first liquid distributor to equalize the incoming liquid. On the heat exchange assemblies are arranged longitudinally-finned tubes, which are evenly distributed in an array. The fins on two adjacent longitudinally-finned tubes are arranged in an alternating manner to achieve heat exchange assemblies providing small wind resistance, large heat transfer surface area and long heat transfer stroke. Therefore, the heat exchanger has uniform liquid distribution, small wind resistance, large heat transfer surface area, long heat transfer stroke, gas-liquid counter-flow arrangement and high heat transfer efficiency.

Abstract: A heat insulating structure body comprising: a container which includes a first plate-like body, a second plate-like body facing the first plate-like body, a partition plate for dividing a space between the first plate-like body and the second plate-like body, a first cavity part formed by the first plate-like body and the partition plate, and a second cavity part formed by the second plate-like body and the partition plate, wherein a wick structure body and a working fluid are sealed in the second cavity part.

Abstract: An air conditioner for a vehicle includes: an air conditioning case, a fan, a motor, a cooling passage, a first rib and a second rib. The air conditioning case has an air passage through which air flows. The cooling passage supplies air to the motor from an opening provided in the air passage. The first rib is provided on an inner wall of the air passage upstream of the opening in a flow direction of air. The second rib is provided on the inner wall of the air passage upstream of the first rib in the flow direction of air. A stagnation space is defined between the first rib and the second rib where the air flowing through the air passage stagnates.

Abstract: A ground source heat exchanger (110) is described herein, The ground source heat exchanger (110) including: a first fluid conduit (112), the first fluid conduit having a first arcuate configuration with a first plurality of separate passages (114) extending therethrough; a second fluid conduit (116), the second fluid conduit having a second arcuate configuration with a second plurality of separate passages (118) extending therethrough; and an end cap (120) secured to a distal end (122) of the first fluid conduit and a distal end (124) of the second fluid conduit, wherein the end cap fluidly couples the first plurality of separate passages of the first fluid conduit to the second plurality of separate passages of the second fluid conduit, wherein the first fluid conduit and the second fluid conduit when secured to the end cap define an internal cavity (126) extending through the ground source heat exchanger.

Abstract: An energy recovery system includes a heating and cooling system having a controller and a furnace or fan coil in fluid communication with each of a return air duct and a supply air duct; and an energy recovery ventilator (ERV) having an intake air duct and an exhaust air duct, the ERV being energized by a direct electrical connection to the heating and cooling system. The return air duct is operable to receive stale conditioned air from a conditioned air space while the controller is configured for controlling the ERV to transfer energy from the stale conditioned air to an outside air stream.

Abstract: A heat exchanger system is described for thermochemical storage and release. The system comprises a thermal exchange circuit with a heat exchanger fluid, the circuit further in thermal connection with a thermochemical module. The thermochemical module comprises a thermochemical material that stores and releases heat by a thermochemical exchange process under release or binding of a sorbate. The thermochemical module comprises a compartment structure that compartments the thermochemical material and further comprises a channel structure. This provides an exchange of the sorbate and the thermochemical material via the channel structure to the compartment structure.

Abstract: A heat sink comprising a heat exchange device having a large scale morphology over a scale range and a small scale texture over a scale range, wherein at least one of the large scale morphology and the small scale texture has a fractal-like self-similarity over a scale range. The large scale morphology and small scale texture may be independently defined and implemented, or be provided with a transitional range. The large scale morphology may be algorithmically optimized according to a set of geometrically constraints. The small scale texture may be optimized according to aerodynamic parameters and constraints. The heat sink may be dynamically varying, and/or operated in conjunction with a dynamically varying heat transfer medium supply.

Abstract: A heat exchanger includes flat cross-sectional shaped heat transfer tubes arranged with gaps between flat surfaces of the flat heat transfer tubes facing each other, and each having a flow passage in a vertical direction, and corrugated fins disposed between the flat surfaces facing each other. The corrugated fins each include an end portion in a direction in which air flows, and protruding from end portions of the flat surfaces, a drain hole provided adjacent to central regions of the flat surfaces in the direction in which the air flows, first louvers located upstream of the drain hole, and each including a slit and a slat that is inclined in the vertical direction, and second louvers located downstream of the drain hole, and each including a slit and a slat that is inclined in the vertical direction.

Abstract: A cooler may include: a housing including a coolant space in which coolant flows; partition walls partitioning the coolant space into a plurality of flow channels; and a plurality of cooling fins located in each of the flow channels. The partition walls may be curved tortuously such that each of the flow channels comprises wide portions and narrow portions. The wide portions and the narrow portions may be arranged alternately in each of the flow channels in a direction along which the coolant flows. A number of the cooling fins located in each of the wide portions may be greater than a number of the cooling fins located in each of the narrow portions.

Abstract: An evaporator evaporates a working fluid by heat from a battery. The evaporator includes at least one evaporation channel connected to the battery in a thermally conductive manner. The evaporator includes a supply channel connected to an upstream end of the evaporation channel, and supplies the working fluid in liquid phase from the supply channel to the evaporation channel. The evaporator includes an outflow channel connected with a downstream end of the evaporation channel, and discharges the working fluid. The outflow channel is disposed above the supply channel, and the supply channel is disposed at a position more insulated from the heat of the battery than the evaporation channel is.

Abstract: Thermal recuperation methods, systems, and devices are provided. The methods, systems, and/or devices may provide for: introducing a first fluid into at least a portion of a tank containing a solid; exchanging heat between the solid contained within the tank and the first fluid as the first fluid passes at least around or through the solid; extracting the heated first fluid from at least the portion of the tank containing the solid; and/or passing the heated first fluid with respect to a heat exchanger thermally coupled with a second fluid. The heated first fluid may be cooled as it passes with respect to the heat exchanger and heat may be thermally recuperated between the solid and the second fluid.

Abstract: A plate for a heat exchanger between a first medium and a second medium, with a main plane of extension and a main longitudinal direction includes a first heat transfer surface, parallel to said main plane and in contact with the first medium; and a second heat transfer surface, parallel to said main plane and in contact with the second medium. The first surface includes a first medium inlet region, a first medium transfer region and a first medium outlet region including a first medium outlet port. The second surface includes a second medium inlet region, a second medium transfer region and a second medium outlet region, which second medium inlet region overlaps with the first medium outlet region and includes a second medium inlet port not overlapping, with the first medium outlet port.

Abstract: A stack of heat transfer sheets includes one or more first sheet which includes a first undulating surface formed by first lobes that are parallel to each other and oriented at a first angle. The first sheets include a second undulating surface formed by second lobes that are parallel to each other and oriented at a second angle, different from the first angle. The first sheets include a third undulating surface formed by third lobes extending from one or more ends of the first sheet and terminating at an intermediate point between the end and an opposing end thereof. The third lobes are parallel to each other and parallel to the direction of flow through the stack. The stack includes one or more second sheets defining a plurality of sheet spacing features which engage a portion of the first sheet.

Abstract: A stacked heat exchanger includes: passage tubes stacked with each other to support a heat exchange object, a passage being defined in the passage tube for a heat medium to exchange heat with the heat exchange object; and a pipe connected to one of the passage tubes located at one end in a stacking direction of the plurality of passage tubes. Each of the passage tubes has a protruding pipe portion protruding in the stacking direction and communicating with the adjacent passage tube in the stacking direction. The one of the passage tubes located at the one end in the stacking direction is an in/out passage tube. The pipe has a surface at one end in a longitudinal direction of the pipe, and the surface intersects the longitudinal direction of the pipe and is joined to the in/out passage tube.

Abstract: Methods and systems are provided for a cooling module assembly for a vehicle. In one example, the cooling module assembly includes a first set of fins configured to flow a first fluid through a first sinusoidal, continuous inner passage, and a second set of fins configured to flow a second fluid through a second sinusoidal, continuous inner passage. The second set of fins shares a common plane with the first set of fins and together forms a semi-circular structure.

Abstract: The device and methods described herein relate to the isothermal heat transport through an intermittent liquid supply to an evaporator device, thereby enabling high evaporative heat transfer coefficients. A liquid and vapor mixture flows through miniature and micro-channels in an evaporator and addresses flow instabilities encountered in these channels as bubbles rapidly expand. Additionally, a high percentage of the fins are exposed to vapor and limit the required charge of refrigerant t within the system due to effective condensate removal in the condenser.

Abstract: A heat exchanger assembly includes a heat exchanger and a connection piece for attachment to a component of a vehicle to mount the heat exchanger. The heat exchanger includes an undercut. The connection piece is arranged to lie behind the undercut.

Abstract: An air conditioner and a method of manufacturing the same are disclosed. The air conditioner includes an indoor heat exchanger and an outdoor heat exchanger, each including a plurality of refrigerant pipes and at least one connection pipe for interconnecting the refrigerant pipes, a brazing hole formed in the connection pipe by punching, and a brazing ring mounted over the brazing hole, wherein portions of the refrigerant pipes are inserted into the connection pipe through inlet ends of the connection pipe, the brazing hole is located between ends of the refrigerant pipes and the inlet ends of the connection pipe, and the connection pipe is bonded to the refrigerant pipes by heating at least one selected from between the refrigerant pipes and the brazing ring.

Abstract: Various aspects as described herein are directed to a radiative cooling device and method for cooling an object. As consistent with one or more embodiments, a radiative cooling device includes a solar spectrum reflecting structure configured and arranged to suppress light modes, and a thermally-emissive structure configured and arranged to facilitate thermally-generated electromagnetic emissions from the object and in mid-infrared (IR) wavelengths.