Abstract: A heat exchanger for a method vehicle and a method of producing a heat exchanger are disclosed. The heat exchanger includes a heat exchanger block closed by a side part. The heat exchanger block has a tube bottom including a deformable hook, and the side part includes a tab provided complementary to a corner region of the tube bottom. The tab has a section, that abuts on a front side of the tube bottom, that includes a through opening or depression. A material portion of the hook is displaced through the through opening or depression via a graining in an assembled state, such that the axes of the through opening and the graining are offset and parallel to one another.

Abstract: Geothermal energy is increasingly recognized as a useful energy source for both industrial and residential purposes. Disclosed herein are units for subterranean heat exchange comprising a polymer block with ‘mini-channels’ adapted and/or sized for highly efficient heat exchange. In some embodiments such units can, as needed, be manufactured off site, spooled for transport, and conveniently installed in boreholes. Other arrangements are also described for conduits located within a borehole for heat exchange, without a polymer block. Also disclosed are geothermal heat exchange systems including those that employ such units, for example with direct expansion of a two-phase heat-exchange fluid such as carbon dioxide.

Abstract: Various implementations described herein relate to a heat sink having a base and a plurality of fins extending from the base. Each of the plurality of fins is spaced apart from other ones of the plurality of fins. The plurality of fins includes first fins and second fins. Each of the first fins is perpendicular to any of the second fins.

Abstract: A heat dissipation device has a frame assembly, a gravity loop thermosyphon, and a dissipating fin assembly. The gravity loop thermosyphon has a heat exchanger, a condenser, two bendable tubes, and working fluid. One end of each bendable tube communicates with the heat exchanger and another end of each bendable tube communicates with the condenser and thus the working fluid may circulate therein. After the bendable tubes are bent, the condenser can be moved to an appropriate location or tilted to an appropriate angle according to the environment, and then the location and the angle are fixed via the frame assembly so the gravity loop thermosyphon can adapt for different dissipation assemblies.

Abstract: An air fin for a heat exchanger has air channels defined by corrugations, the corrugations having generally planar flanks joined by alternating crests and troughs. Perforations extend through portions of at least some of the flanks and are aligned within two spaced apart planes. A rectangular aperture extends through at least two consecutive ones of the corrugations, and is bounded by the two planes. A method of making the air fin includes forming perforations into a continuous strip of metal sheet at regular intervals, corrugating the strip to form crests and troughs between the perforations, and punching out a portion of the strip at regular intervals. The punching out includes shearing webs between the perforations, and results in the formation of the rectangular aperture.

Abstract: A thermal management system includes a slurry generator, an injector pump coupled to the slurry generator, a heat exchanger reactor coupled to the injector pump, wherein the heat exchanger reactor is adapted to subject a thermally expendable heat absorption material to a temperature above 60° C. and a pressure below 3 kPa, and wherein the expendable heat absorption material endothermically decomposes into a gaseous by-product. A vapor cycle system is coupled to the heat exchanger reactor and is operatively connected to a thermal load. A thermal energy storage system may be coupled to the vapor cycle system and the thermal load. The thermal energy storage system may isolate the heat exchanger reactor from thermal load transients of the thermal load.

Abstract: A heat-radiating substrate with a high insulation-withstand voltage and an excellent heat-radiating property is provided. The heat-radiating substrate includes: a metal base material; a metal thin layer formed over the metal base material and having a hardness higher than a hardness of the metal base material; and a ceramic layer over the metal thin layer. Alternatively, the heat-radiating substrate includes, instead of the metal thin layer, a hardened layer serving as a surface layer of the metal base material and having a hardness higher than the hardness of the metal base material. The metal thin layer and the hardened layer are able to enhance compressive stress or prevent release of the compressive stress generated in the ceramic layer by a mechanical impact applied to the ceramic layer.

Abstract: There is disclosed a system for cooling a water-cooled apparatus having a water inlet and a water outlet. The system has: a circuit in fluid communication with the water inlet and the water outlet, the circuit having a valve upstream of the water inlet connected to a source of water, and an outlet in fluid communication with a sewer; an air-cooled cooling unit in heat exchange relationship with water in the circuit; and a pump fluidly connected to the circuit; the system operable between a closed-loop configuration and an open configuration, the valve being closed and the pump circulating water between the water-cooled apparatus and the air-cooled cooling unit in the closed-loop configuration, and the valve being open and water in the circuit circulating from the source of water, through the water-cooled apparatus, and to the sewer in the open configuration.

Abstract: A heating and cooling system for an electric vehicle includes an electric pump that pumps fluid around a first loop to selectively cool part of the drive train of the vehicle. The fluid passes through a cabin heater that extracts heat energy from the fluid and back to the part of the drive train. An electric compressor pumps fluid around a second loop through a condenser which extracts heat energy from the fluid which flows through an expansion valve and an evaporator and back to the electric compressor. A cabin chiller including an evaporator is located in a flow path receiving fluid output from the condenser through an expansion valve upstream in the flow path. The fluid from the evaporator is drawn back into the second loop by the electric compressor. The chilled fluid flowing through the evaporator extracts heat from the fluid flowing around the first loop.

Abstract: The present invention relates to a heat pump system for a vehicle which can enhance heating performance of a plug-in hybrid vehicle by heating engine coolant necessary for heating using a refrigerant cycle.

Abstract: A heat-exchanging plate (20), and plate heat exchanger (100) using same. The heat-exchanging plate (20) comprises concave locations (22) and/or convex locations (23), and is provided with multiple heat-exchanging units thereon. At least one inlet and/or at least one outlet of at least one of the heat-exchanging units is controllable.

Abstract: A cold plate includes: a base plate including a plurality of fins aligned in parallel; and a cover that covers the plurality of fins and that forms an internal space between the base plate and the cover. The plurality of fins includes: a first fin group in which a plurality of first fins having a first width are disposed on the base plate with a fixed gap in a parallel direction between each of the first fins and a second fin group in which a plurality of second fins having a width wider than the first width are disposed on the base plate with the fixed gap in the parallel direction between each of the second fins. The second fin group is disposed on both sides of the first fin group.

Abstract: A plate stack includes a plurality of plates, each including corrugated portions formed on front and back surfaces thereof. First and second heat exchange flow passages are formed between plates, arranged alternately along stacking direction of the plates. Each plate has two through holes penetrating the front and back surfaces, through which the first heat exchange fluid is introduced and derived. The plate stack includes first partition weirs formed on at least one of two plate surfaces, the two plate surfaces forming a corresponding one of the first heat exchange flow passages therebetween. First partition weirs are symmetrically and obliquely arranged with respect to a center line connecting centers of two through holes as viewed from the stacking direction. A flow passage is formed along the center line on a side of at least one of the two through holes, from which first heat exchange fluid is introduced.

Abstract: Heat exchanger (100) for heat exchange between a first medium and a second medium, comprising a main inlet (101) and a main outlet (102) for the first medium; and a plurality of heat exchanging plates (110), each of which comprising a plate inlet (111) and a plate outlet (112) for the first medium; and a respective first heat transfer surface (114) on a first side (113) and arranged to be in contact with the first medium flowing along said first side; a respective second heat transfer surface (116) on a second side (115) and arranged to be in contact with the second medium flowing along said second side; a respective plurality of indentations (120,130,140); wherein the plates are fastened together in a stack, comprising plates of a first type (104a) and plates of a second type (104b) arranged alternatingly, whereby corresponding ones of said indentations of adjacent plates are arranged in direct abutting contact with each other, so that flow channels (105?,105?,106) for said first and second media are formed

Abstract: Plate (110) for a heat exchanger (100) between a first medium and a second medium, the plate comprising a first heat transfer surface (114) on a first side (113) of the plate, arranged to be in contact with the first medium; a second heat transfer surface (116) on a second side (115) of the plate, arranged to be in contact with the second medium; a plurality of indentations (120, 130, 140) in the plate (110; 210; 310), bulging out locally in a plate height direction (H), which plate is arranged to be stacked together with similar plates to form a heat exchanger heat plate stack.

Abstract: An HVAC system for automatically adjusting setpoint boundaries of a space includes building equipment configured to provide heating or cooling to the space to affect an environmental condition of the space and a controller. The controller obtains occupant setpoint adjustment data indicating occupant setpoint increases or occupant setpoint decreases at multiple times during a time interval and partitions the occupant setpoint adjustment data into time period bins based on the multiple times associated with the occupant setpoint adjustment data, each of the time period bins containing occupant setpoint adjustment data characterized by a common time attribute. The controller determines a number of occupant setpoint increases and a number of occupant setpoint decreases indicated by the occupant setpoint adjustment data within each time period bin and adjusts a setpoint boundary of the space based on the number of occupant setpoint increases or the number of occupant setpoint decreases.

Abstract: A zoning system for a heating, ventilation, and/or air conditioning (HVAC) system includes a temperature control device configured to monitor a temperature in a zone of a structure for conditioning by the HVAC system and configured to send a wireless control signal including data based on the temperature, and a damper actuator configured to be associated with the zone and configured to adjust a position of a damper to control an airflow into the zone, where the damper actuator is configured to receive the wireless control signal from the temperature control device and configured to adjust the position of the damper based on the data.

Abstract: A heat dissipation device includes a main body and at least one heat conduction member. The main body has a top face. A periphery of the top face has a connection section. One end of the heat conduction member is correspondingly in contact and connection with the top face or the connection section. By means of the structure design of the present invention, the horizontal heat dissipation effect is greatly enhanced and the heat dissipation effect of the entire heat dissipation device is greatly enhanced.

Abstract: A heat dissipating device which is liquid cooled includes a base and at least one heat dissipation fin connected to the base. The base includes a first cavity. The at least one heat dissipation fin comprising a second cavity communicating with the first cavity, the second cavity and the first cavity together form an accommodation cavity for accommodating a working fluid which forcefully applies cooling upon being heated sufficiently to be vaporized.

Abstract: A heat exchanger includes a tube expansion portion provided on a heat transfer tube such that an outer peripheral surface of the heat transfer tube is pressed against an inner peripheral surface of a first hole provided in a side wall portion of a case, and a first concave surface portion that is provided in a part of an outer surface of the tube expansion portion and forms a first gap, into which brazing material of a first brazed portion advances, between the outer surface of the tube expansion portion and the inner peripheral surface of the first hole. Thus, the attachment strength of the heat transfer tube can be improved by means of a simple configuration.