Abstract: An apparatus for generating steam within a heat exchanger. In one aspect, the invention can be a heat exchanger comprising: a shell having an inner surface forming a cavity, the shell comprising an inlet for introducing the shell-side liquid into the cavity and an outlet for allowing the vapor to exit the cavity; a tube bundle comprising a plurality of tubes for carrying a tube-side fluid located in the cavity and having a longitudinal axis; a shroud circumferentially surrounding the tube bundle and positioned between the tube bundle and the inner surface of the shell so that an annular space exists between the shroud and the inner surface; an opening in a bottom portion of the shroud that forms a passageway between the annular space and the tube bundle; and an opening in a top portion of the shroud that forms a passageway between the annular space and the tube bundle.

Abstract: An inlet arrangement (1) for use in plate heat exchangers (2) is disclosed. The arrangement comprises an element with a dispersion opening (6) for arrangement in an inlet (5) in a plate exchanger. The inlet arrangement (1) is arranged to form a mainly fitting cylinder wall when introduced in the inlet (5). The cylinder wall comprises at least one opening (6) which extends partly or fully along the length of the inlet (5) and is sealingly arranged towards the inlet (5) of the plate heat exchanger. Furthermore, the opening (6) is oriented towards one side at an angle from the perpendicular. The use of such inlet arrangement (1) is also disclosed.

Abstract: Problem to be Solved A plate laminate type heat exchanger having high heat exchange efficiency is provided. Solution In a plate laminate type heat exchanger 100, both ends of a protrusion 10 converge into an inlet port for high temperature fluid 58a and an outlet port for high temperature fluid 58b. A pair of core plates 53 and 54 is assembled in such a way that the side of the core plate 53 on which the protrusion 10 is not formed faces the side of the core plate 54 on which the protrusion 10 is not formed and the protrusions 10 and 10 formed on the respective core plates are paired but oriented in opposite directions. The pair of core plates 53 and 54 form a plurality of tubes surrounded by the walls of the protrusions 10 and 10, and the tubes form high temperature fluid compartments.

Abstract: An exhaust gas cooler for a motor vehicle is provided that includes a first collector box on an inlet side and a second collector box on an outlet side, and a plurality of exchanger tubes extending between the collector boxes for exhaust gas to flow through. Air can flow around the exchanger tubes so as to cool the exhaust gas. At least one supporting member is attached to at least one of the collector boxes, a force produced by the thermal expansion of the exchanger tubes being passed into the supporting member.

Abstract: Disclosed is a device whereby the thermal conductance of a multiwalled nanostructure such as a multiwalled carbon nanotube (MWCNT) can be controllably and reversibly tuned by sliding one or more outer shells with respect to the inner core. As one example, the thermal conductance of an MWCNT dropped to 15% of the original value after extending the length of the MWCNT by 190 nm. The thermal conductivity returned when the tube was contracted. The device may comprise numbers of multiwalled nanotubes or other graphitic layers connected to a heat source and a heat drain and various means for tuning the overall thermal conductance for applications in structure heat management, heat flow in nanoscale or microscale devices and thermal logic devices.

Abstract: Heat exchanger tubes are disclosed herein. An embodiment of a heat exchanger tube includes a tube body having two opposed sides. A plurality of exterior flow passages is defined in the tube body adjacent one of the two opposed sides. A plurality of interior flow passages is defined in the tube body adjacent the plurality of exterior flow passages. The plurality of exterior flow passages has at least one of an average hydraulic diameter or an average width that is i) greater than at least one of an average hydraulic diameter or an average width of the interior flow passages and ii) less than twice the at least one of the average hydraulic diameter or the average width of the interior flow passages.

Abstract: A multi-layer antimicrobial hydrophilic coating is applied to a substrate of anodized aluminum, although other materials may form the substrate. A silver layer is sputtered onto a thoroughly clean anodized surface of the aluminum to about 400 nm thickness. A layer of crosslinked, silicon-based macromolecular structure about 10 nm thickness overlies the silver layer, and the outermost surface of the layer of crosslinked, silicon-based macromolecular structure is hydroxide terminated to produce a hydrophilic surface with a water drop contact angle of less than 10°. The coated substrate may be one of multiple fins in a condensing heat exchanger for use in the microgravity of space, which has narrow channels defined between angled fins such that the surface tension of condensed water moves water by capillary flow to a central location where it is pumped to storage. The antimicrobial coating prevents obstruction of the capillary passages.

Abstract: A heat dissipation device for transferring heat generated by a heat-producing element to a heat-dissipating element, includes a graphene plate, a main casing and a supporting plate. The graphene plate, in the form of relatively thin structure, has a first dissipation portion and a second dissipation portion extending from the first dissipation portion. The main casing, generally a planar structure, encloses the graphene plate therein, and has a first dissipation opening exposing the first dissipation portion of the graphene plate. The supporting plate extends integrally from the main casing in order to support the second dissipation portion of the graphene plate. The heat-producing element is inserted through the first dissipation opening in order to mount the same on the first dissipation portion of the graphene plate while the heat-dissipating element is mounted on the second dissipation portion of the graphene plate.

Abstract: A heat exchanger including a tank with first and second ends defining a length and a cross-sectional area transverse to the length. An inlet orifice defined at the first end through which fluid flows in a first direction into the tank, the inlet orifice having a cross-sectional area transverse to the first direction. A voluminous region defined by boundaries which extend generally linearly from the circumference of the cross-sectional area of the inlet orifice to the circumference of the cross-sectional area of the tank. A plurality of conduits providing an outlet for fluid flow from the tank in a second flow direction at a non-parallel angle to the first flow direction. A flow diverter positioned within the voluminous region to direct a portion of fluid flow out of the region and distribute the total volume of fluid flow from the inlet substantially uniformly between the plurality of conduits.

Abstract: The invention relates to a heat exchanger, particularly for a motor vehicle, comprising a plurality of exchanger tubes (3) attached to at least one floor for conveying a first fluid, wherein the exchanger tubes (3) are disposed in a housing through which a second fluid flows, wherein a holding member (5) is disposed inside the housing, wherein at least two of the exchanger tubes (3) are supported relative to one another by means of the holding member (5).

Abstract: An airflow control apparatus includes a controllable airflow resistance aligned with an airflow path of a plurality of airflow paths, a sensor capable of detecting an airflow condition in at least one of the plurality of airflow paths, and a controller. The controller is coupled to the controllable airflow resistance and to the sensor, and can control the controllable airflow resistance to manage airflow recirculation based on the airflow condition detected by the sensor.

Abstract: The invention relates to a heat exchanger in modular construction, in particular for facilities operated using large load and/or temperature changes, having an external shell and a number of heat exchanger modules, wherein each heat exchanger module, which is either a preheater, evaporator, or superheater module, has an entry manifold, and exit manifold, and meandering pipes, through which the heat-absorbing medium, in particular water, flows from the entry manifold to the exit manifold, and the heat exchanger modules are also situated in a shared external shell, so that they have the same heat-dissipating medium flowing around them, the evaporator modules being connected in parallel via a steam-collecting drum situated outside the external shell.

Abstract: A soldered cooler block, especially for a charge air cooler/coolant cooler, is constructed in a packet-type manner. Cooling channels for a liquid coolant are arranged in the cooler block in a crossways manner in first layers, and gas channels for a gas which is to be cooled are arranged in a crossways manner in second layers. The cooling channels are respectively formed by two wall areas which are arranged at a distance and by intermediate strips and connection strips that include groove profiles.

Abstract: A radiant synthesis gas (syngas) cooler used to contain and cool the synthesis gas produced by a coal gasification process used in an IGCC power plant employs a compact radial platen arrangement which is less prone to fouling and/or plugging issues.

Abstract: The vapor chamber is used in an electronic device. The electronic device includes a metal casing. The vapor chamber includes an upper cover, a working fluid, a waterproof layer, and a wick structure layer. The upper cover is disposed on inner walls of the metal casing to define a containing space. The working fluid is filled into the containing space. The waterproof layer is formed on inner walls of the containing space. The wick structure layer is formed on the waterproof layer.

Abstract: A heat exchanger has first and second sides and comprises a pair of tanks, with each of the tanks defining an interior and including a header. A plurality of openings is formed in the header; The heat exchanger comprises a plurality of tubes extending between the openings in the tanks, with each of the tubes having opposite end portions joined to the tanks to fluidly connect the interiors of the tanks through interiors of the tubes. The heat exchanger comprises at least one reinforcement ribbon element extending across a juncture between the header and the plurality of tubes to reinforce a connection between the header and the plurality of tubes.

Abstract: The present invention relates to a conduit for use in a geothermal heating and cooling system wherein said conduit comprises 2 or more pipes, wherein said 2 or more pipes are twisted together, wherein further that said 2 or more twisted pipes are twisted around a central pipe, further provided that the functions of said central pipe include, but are not limited to, serving as a conduit for a tremie pipe, serving as a support pipe, serving as an insulating pipe or serving as a tremie pipe.

Abstract: The present invention relates to an exhaust gas cooler (1), in particular for an exhaust gas recirculation system of an internal combustion engine, preferably of a motor vehicle, comprising an exhaust gas inlet (2) which is connected in a communicating manner with an inlet chamber (4), an exhaust gas outlet (3) which is connected in a communicating manner with an outlet chamber (5), a plurality of exhaust gas pipes (7) which are configured as flat pipes, extend parallel to each other through a coolant chamber (8) and are connected in a communicating manner on one side to the inlet chamber (4) and on the other side to the outlet chamber (5), a coolant inlet (9) which is connected in a communicating manner to the coolant chamber (8), and a coolant outlet (10) which is connected in a communicating manner to the coolant chamber (8).

Abstract: A heat dissipation device includes one of heat sinks with different specifications each of which includes a core and supports extending outwards and radially from the core, and a fixing frame receiving the one of the heat sinks therein. The fixing frame comprises a side plate, a plurality of vertical walls extending downwardly from the side plate, and two sets of slots defined in an inner side of the side plate. Each of the slots extends upwardly from a bottom surface of the side plate to a certain depth to form a step at a top thereof. The slots are staggered with the vertical walls. The supports correspondingly slide in one set of slots and abut corresponding steps.

Abstract: A heat sink composed of a fin set and a seat and a method for manufacturing the same are disclosed. One side of the fin set is provided with a plurality of rail rods whose cross sections are of a hook shape. One side of the seat is formed with a plurality of slots corresponding to the rail rods. Thus the fin set and the seat can be assembled by engagement of the rail rods and slots. A press mold is employed to press the rail rods and the slots, thus the rail rods and slots are deformed to make the fin set and seat tightly engage with each other.