Abstract: A closed-cycle thermal energy storage system includes a thermochemical reactor [400] containing a solid thermochemical material, a heat exchanger [402], a fan [406] for creating forced convection of an air/water mixture circulating around the closed cycle, an evaporator/condenser [408], and a pressure control system that includes a pressure sensor [422], a controller [424], and a pump [404]. The pressure control system actively controls the pressure of the air/water mixture to produce a desired temperature difference across the thermochemical reactor [400]. The adjustable pressure control system controls the pressure of the air/water mixture to a first pressure (e.g., between 10 mbar and 1 bar) during a hydration phase and a second pressure (e.g., between 1 bar and 10 bar) during a dehydration phase.

Abstract: Improved heat exchangers according to several embodiments are provided. The heat exchangers provide improved heat transfer for air flow in wet and dry operating conditions, while minimizing pressure drop across the heat exchanger in some applications. According to one embodiment, an improved heat exchanger includes a plurality of metal foam fins between adjacent heat exchange conduits, the heat exchange conduits being arranged parallel to each other to define parallel flow paths between an inlet header and an outlet header. The metal foam fins occupy a cross-flow region between adjacent conduits, the fins having a fixed angular orientation or being rotatable in unison to vary the thermal capacitance of the heat exchanger.

Abstract: Provided is a heat pipe which is installed in a cold region in a bottom heat posture in which a longitudinal direction of a container is substantially in parallel with a gravitational direction, is capable of preventing the container from deforming even when a working fluid has become frozen, and has excellent heat transport properties.

Abstract: The present invention discloses a two-phase immersion-cooling micro-grooved boiler, which is mainly used for heat dissipation of heat generating objects. The boiler comprises a heat transfer member and a capillary layer positioned in tight contact with a surface of the heat transfer member. The capillary layer has an array of micro-grooves which divides the capillary layer into a plurality of heat dissipating units. The bottom surface of the micro-grooves is coated with a thermal resistance layer. While the boiler operates, the working liquid can flow into the heat dissipating units from the sidewall of the micro-grooves without being blocked from contact with the heat transfer member by boiling-triggered bubbles. As a result, dry-out of the heat transfer member can be avoided, thereby improving the heat exchange efficiency of the boiler and the flow-back rate of the working fluid.

Abstract: A header for a heat exchanger and method for cleaning a heat exchanger in a loop without disconnecting loop components is provided. The header is in flow communication with the heat exchanger for distributing fluid through a plurality of adjacent channels. The header is connected between a main heat exchanger inlet nozzle and a channel flow distributor. A filter element is disposed within the header between the nozzle and channel flow distributor. Under normal operation, the filter element removes particulates and fouling material from the main flow stream before it enters the heat exchanger channels. During the cleaning process, fluid is injected on or through the filter element to remove particulates and fouling material through at least one outlet port. The header arrangement allows the filter element to be ‘cleaned in place’ without draining the system and disconnecting the heat exchanger or other components from the flow loop.

Abstract: The present invention relates to a water-cooling type condenser, and more specifically, to a water-cooling type condenser including a fixing plate for fixing a gas and liquid separator, wherein the fixing plate is formed to enable a refrigerant and cooling water to flow by means of coupling between first and second plate portions, and is integrally formed, by brazing, with remaining components (a plate, a first inlet pipe, a first outlet pipe, a second inlet pipe, and a second outlet pipe), so as to enhance assemblability and durability and enable size reduction.

Abstract: A heat exchanger includes: a first layer including first flow channels that are microchannels and arranged to extend side by side; and a second layer that is laminated on the first layer and that includes second flow channels that are microchannels and arranged to extend side by side. A first one end-side collective flow channel is in fluid communication with first ends of the first flow channels. A first other end-side collective flow channel is in fluid communication with second ends of the first flow channels. A second one end-side collective flow channel is in fluid communication with first ends of the second flow channels. A second other end-side collective flow channel is in fluid communication with second ends of the second flow channels.

Abstract: A reserve tank includes a plurality of chambers, including a first chamber, a second chamber, and at least one intermediate chamber, a first inflow port connected to the first chamber, a first outflow port connected to the first chamber, a second inflow port connected to the second chamber, a second outflow port connected to the second chamber, and a plurality of partition walls separating the chambers. Each of the partition walls is provided with a corresponding one of a plurality of refrigerant flow ports. A specific refrigerant flow port includes a first through hole and a second through hole that pass through a specific partition wall and are separated from each other. The specific refrigerant flow port being a refrigerant flow port provided in the specific partition wall among the partition walls.

Abstract: One example provides a thermal management system for an electric vehicle including a pump to pump a thermal transfer fluid through a number of circulation loops, an electric heater to heat the thermal transfer fluid, a heat exchanger to expel heat from the thermal transfer fluid, a number of valves, and a number of fluid pathways fluidically interconnecting the pump, heater, heat exchanger and valves. The valves being controllable to a number of different positions to form the number of circulation loops, the number of circulation loops including a battery heating circulation loop extending through the heater for heating a battery pack of the vehicle, a secondary components cooling circulation loop extending through the heat exchanger to cool secondary components of the vehicle, including a motor and a motor controller, and a battery cooling circulation loop extending through the heat exchanger to cool the battery pack.

Abstract: A method and system for ground-based thermal conditioning of an electric aircraft. The system includes an electric aircraft, an onboard thermal conditioning module on the electric aircraft, and a ground-based thermal conditioning module connected to the onboard thermal conditioning module. Liquid coolant runs through the ground-based thermal conditioning module to the onboard thermal conditioning module. Ground-based thermal conditioning module purges the coolant from the onboard thermal conditioning module. The ground-based thermal conditioning module is disconnected from the onboard thermal conditioning module.

Abstract: A fluid cooling device includes an endothermic cover, an endothermic base and a fluid pump. The endothermic cover has a port; and a heat exchange chamber formed between the longitudinally affixed endothermic base and endothermic cover, and a heat exchange unit installed in the heat exchange chamber. The fluid pump includes a pump housing and a driving element, and the pump housing has a pump space and a coupling tube communicating to each other. A vane of a driving element is received in the pump space, and the coupling tube is longitudinally plugged into the port and seamlessly combined and fixed to each other, and the pump housing maintains an insulation gap with the endothermic cover through the coupling tube. Therefore, the heat of the heat sink will not be conducted to the fluid pump and no seam is produced and thus no waterproof gasket is needed.

Abstract: A valve assembly, a heat exchange assembly, and an oil temperature regulation system for a gearbox. The heat exchange assembly includes a heat exchange core body, the valve assembly, an adapter, and a mounting plate fixed to the heat exchange core body. The valve assembly is disposed at a second channel of the heat exchange core body or partially located at the second channel. The valve assembly is provided with a first valve port and a first notch. The heat exchange core body includes a through channel that is in communication with a fourth port.

Abstract: A heat sink provides a pump body, a pump cover, a pump module, a guide plate and a water block. The pump body is an integrally formed shell seat and forms a first chamber, a second chamber and an insulation gap. The pump cover covers the first chamber. The guide plate is combined in the second chamber and forms a heat exchange chamber. The water block includes a bottom plate and fins. The bottom plate covers the heat exchange chamber, and the fins are disposed in the heat exchange chamber. Therefore, the heat can be prevented from being transferred from the water block to the pump module.

Abstract: The invention relates to a header tank (5) for a mechanically assembled heat exchanger, notably for a motor vehicle, said exchanger (1) comprising a mechanically assembled heat-exchange core bundle (3) and comprising at least one row of tubes (31) with two end tubes (31) one at each end of said at least one row, the tubes (31) respectively comprising an end (311) intended to open into an interior volume of the header tank (5). According to the invention, the header tank (5) comprises at least one end stop (55) configured to be positioned facing an internal surface of the end (311) of an associated end tube (31) and to collaborate with said internal surface in such a way as to prevent said tube (31) from moving in the direction of the interior volume of the header tank (5).

Abstract: The invention relates to a heating, ventilation and/or air-conditioning device (10) for a motor vehicle, which device comprises a housing (26), a cold air region (84), a hot air region (86), an evaporator (36) which is configured to provide a cold air stream (50) in the cold air region (84), and a heating element (34) which is configured to provide a hot air stream (48) in the hot air region (86). Furthermore, the device (10) has a one-piece cross-flow deflection device (38), which is covered by the housing (26) and comprises a mixing device (40) and a cover (42), wherein the mixing device (40) has a plurality of mixing chambers (52), each of which is provided for mixing a part of the cold air stream (50) and a part of the hot air stream (48). The cover (42) here separates the cold air region (84) and the hot air region (86) from each other at least in portions. Furthermore, the cover (42) has a fixing device (74) which is provided for fixing the heating element (34).

Abstract: A microtube recuperator for transferring heat between a high pressure fluid stream and a low pressure fluid.

Abstract: A device for mounting a light bulb and bulb base to a ground stake having a mounting ring for attaching a bulb and a bulb base to the ground stake. A sealing ring is disposed in the mounting ring having the bulb received in an upper end of the sealing ring and the bulb base secured to the lower end of the sealing ring whereby the sealing ring restricts moisture from flowing around the bulb and into the bulb base when the bulb is screwed into the sealing ring.

Abstract: A multi-source ground-to-air heat transfer system is configured to store thermal energy during a cooling/dehumidifcation mode of operation for future use during a heating mode of operation. The multi-source ground-to-air heat transfer system utilizes a ground loop that is configured under an enclosure, such as a greenhouse, and is in thermal communication with a thermal reservoir medium to conduct and store heat. A thermal exchange fluid is pumped through the ground loop and ground heat exchanger and may receive heat from a condenser during a cooling/dehumidification mode of operation and may liberate heat to the evaporator during a heating mode. The enclosure air may receive heat from the heat pump during a heating mode and may liberate heat to the evaporator during a cooling/dehumidification mode. The heat exchange system may employ a heat pump having a reversing valve to change the mode of operation.

Abstract: An HVAC system for use with a first refrigerant and a second refrigerant. The HVAC system may include a first refrigerant circuit for use with the first refrigerant, a second refrigerant circuit for use with the second refrigerant, and a heat exchanger. The first refrigerant circuit and the second refrigerant circuit may each include may include a compressor, an expansion device, and an evaporator. The compressor may include a first upper section, a first lower section, a second upper section in fluid communication with the first lower section, and a second lower section in fluid communication with the first upper section. The first upper section, the first lower section, the second upper section, and the second lower section may be arranged such that the first refrigerant and the second refrigerant both flow through a majority of a face area of condenser while remaining in two different circuits.

Abstract: Heat exchangers include a first heat exchange section joined to a second heat exchange section. In some embodiments, channels of one or more of the heat exchange sections may be positioned such that adjacent channels are collinear in at least one direction. In some embodiments, sidewalls of one or more of the heat exchange sections may exhibit a substantially constant thickness along a section of the heat exchanger that includes the channels.