Abstract: A heating and cooling (HVAC) system that includes a compressor; a first heat exchanger; a second heat exchanger; a first expansion valve positioned between the first heat exchanger and the second heat exchanger; a first reversing valve that permits the system to operate in a first mode and a second mode; and a thermal battery including a phase change material therein that is configured to selectively store and release thermal energy received from a working fluid.

Abstract: A housing for a component (e.g., a heat exchanger) of a heating, ventilation, and/or air conditioning (HVAC) system is disclosed that includes one or more attachment flanges and/or one or more support flanges that are integrated into the housing. The disclosed housing reduces or completely eliminates the use of separate brackets and fasteners when installing components within the housing and/or when coupling the housing to other components of the HVAC system. By dramatically reducing or eliminating these separate components, the disclosed housing designs reduce the likelihood for installation errors, as well as delays due to misplaced brackets and/or fasteners during installation. Accordingly, the disclosed housing designs enable a cost-effective solution for reducing the cost and complexity of installing HVAC system components.

Abstract: A system includes a rack of servers and a fluid circuit for cooling the rack of servers. The fluid circuit includes one or more cooling modules, a heat-exchanging module, and a pump. The one or more cooling modules are thermally connected to a conduit for flowing a coolant therethrough. Each cooling module includes a heat-exchanger thermally connected to the conduit and a chiller fluidly coupled to the heat-exchanger. The heat-exchanging module is fluidly connected to an outlet of the conduit. The pump is configured to drive the coolant from the heat-exchanging module to each server in the rack of servers.

Abstract: The invention relates to a heating, ventilation and/or air conditioning device (10) for a motor vehicle, comprising a housing (12) defining an air duct (11) for the passage of an airflow comprising—an inlet module (8), comprising at least one air inlet (15, 16), an air filter (70) being arranged within the inlet module (8), and—a distribution module (9) comprising at least one air outlet (27, 29, 30), the inlet module (8) and the distribution module (9) being detachably assembled to one another; according to the invention, the inlet module (8) is configured to be arranged in a first area of the vehicle, and the distribution module (9) is configured to be arranged in a second area of the vehicle, the air filter (70) being able to be removed from the second area of the vehicle. The invention also relates to a motor vehicle comprising such a device.

Abstract: A thermal management system for a vehicle includes a first refrigeration cycle thermally connected to a passenger compartment and including a first refrigerant loop, a battery cooling sub-system thermally connected to a battery and including a battery coolant loop, and a second refrigeration cycle thermally connected to the first refrigeration cycle and the battery cooling sub-system and including a second refrigerant loop. The second refrigeration cycle may include an upstream-side heat exchanger configured to selectively transfer heat between the first refrigerant loop and the second refrigerant loop, and a downstream-side heat exchanger configured to transfer heat between the battery coolant loop and the second refrigerant loop.

Abstract: A header tube assembly is disclosed and can include an outer tube, an inner tube, and a flow valve. Each of the outer and inner tubes can include an open end and a closed end, as well as a plurality of apertures extending through a sidewall of the outer tube and inner tube, respectively. The apertures of the inner tube can permit a flow of refrigerant between an internal volume of the inner tube and a gap between the inner and outer tubes, and the apertures of the outer tube can permit a flow of refrigerant between the internal volume of the outer tube and a plurality of refrigerant circuits in a heat exchanger. The flow valve can be configured to selectively prevent refrigerant from flowing between the gap and the open end of the outer tube, depending on a direction of refrigerant flow through the header tube assembly.

Abstract: In a split system heat pump cooling and heating system, an auxiliary hot water storage tank is provided as an energy storage bank. Two sets of coils run through this storage tank, a first set carrying hot refrigerant from the heat pump to deposit energy and a second set carrying hot potable water to remove energy. Valve and switch matrixes are operated at the heat pump to provide hot potable water from the energy storage bank during both normal space heating and cooling operations of the heat pump.

Abstract: Example embodiments of the present disclosure relate to improved HVAC devices and kits for HVAC devices that improve the sound attenuation associated with the device, particularly low-frequency noise. An example embodiment includes an improved furnace including a housing with a combustion air chamber, a heat exchanger chamber, and a circulation blower chamber, wherein the combustion air chamber comprises a burner assembly and a combustion air fan, the furnace also includes a sound attenuation layer including a first acoustic metamaterial layer coupled to the combustion air chamber and tuned to attenuate sound for a first frequency band, one or more housing openings fluidly connecting the combustion air chamber to an environment outside the housing, wherein the sound attenuation layer includes a discontinuous section that aligns with one or more of the housing openings.

Abstract: A method for controlling a refrigerator includes a step in which it is determined whether a period of defrosting (POD) for defrosting a freezing compartment and a deep-freezing compartment has elapsed; a step in which, when it is determined that the period of defrosting has elapsed, a deep cooling operation for cooling at least one from among the temperature of the deep-freezing compartment and the temperature of the freezing compartment to be lower than a control temperature is performed; and a step in which, when the deep cooling operation finishes, a defrosting operation for defrosting the freezing compartment and the deep-freezing compartment is performed.

Abstract: An electric field generating device includes an electrode and a voltage applying device that applies a voltage to the electrode. The electric field generating device is configured to generate an electric field in an indoor space of a container. The electric field generating device is provided with a supporting member that supports the electrode to be movable between a predetermined use position at which an electric field can be generated in the indoor space of the container and a predetermined housing position that differs from the use position, and a fixing member that fixes the electrode immovably at the use position.

Abstract: The storage device is adapted to store a plurality of objects, such as sample tube holders, at several low temperatures, e.g., at ?80° C. and at ?110° C. The storage device includes a storage chamber with a plurality of storage cassettes arranged in its bottom section. A cassette lift in its top section can be used to lift individual storage cassettes up and to move them to an access opening, where the contents of the storage cassette can be accessed. The bottom section is divided into several, concentric storage zones, with the innermost, first storage zone being colder than the outer, second storage zone. A first insulating wall separates the two storage zones. This design reduces the thermal losses of the storage device. A refrigerant circuit with a non-inflammable cryo-liquid is provided for carrying off heat from the first storage zone.

Abstract: An air conditioner includes an outdoor unit including a compressor for compressing a refrigerant and an outdoor heat exchanger for exchanging heat between the refrigerant and outside air. A ventilation device is connected to a plurality of refrigerant pipes, and configured to direct outside air into an indoor space, and indoor air to the outside. The ventilation device includes a case, a main heat exchanger, a recovery heat exchanger, and a refrigerant distributor. The refrigerant distributor is configured to direct the refrigerant between the main heat exchanger and the recovery heat exchanger.

Abstract: A system to extract water from the environment and control temperature through heat transfer between two or more environments, with low energy consumption, for domestic, commercial, or industrial use, which comprises: at least one force unit (10), capable of increasing or decreasing the pressure of the thermal working fluid, wherein the force unit (10) comprises one cylinder (1), which comprises within at least one plunger (2) joined to a piston (27), wherein the piston (27) moves alternately through the activation of a directional control valve (29) that receives hydraulic fluid from a hydraulic pump (32); at least one closed chamber connected to the cylinder (1), wherein that closed chamber comprises at least one tube (12) joined with at least one closed radiator (8a, 8b) wherein thermal working fluid is compressed inside that closed chamber, wherein the change from liquid to solid state or vice versa occurs, or from solid to another solid state or vice versa; and a control unit (11) that regulates the oper

Abstract: A refrigerator appliance includes a cabinet, an anchor, a subcomponent, and a fastener. The cabinet has walls that define an internal storage chamber. A first of the walls defines a pocket that extends outward from and is open to the internal storage chamber. The anchor is disposed within the pocket and engages the first of the walls such that the anchor is secured to the first of the walls. The subcomponent is disposed within the internal storage chamber. The fastener secures the subcomponent to the anchor.

Abstract: A solar photovoltaic powered phase change material thermal energy storage system includes a refrigerator unit having a phase change material (PCM) tank and a photovoltaic (PV) panel to provide electrical energy to the PCM tank to melt a PCM stored therein. The PCM tank includes a refrigeration coil immersed in the PCM and configured to circulate refrigerant to between the PCM tank and a condenser. Energy released and absorbed during solidification and melting of the PCM is used to support an air-conditioning (AC) unit and substitute power used by a compressor of the AC unit, to handle demand during peak hours, thereby reducing overall power requirement of a facility. The melting of the PCM is also controlled, so that the AC unit may operate with the aid of the PCM for longer duration during the day.

Abstract: A refrigerator including an ice maker that includes a pressurizing member, a first tray including a first main ice-making cell and a first auxiliary ice-making cell. The ice maker includes a second tray coupleable to the first tray to form a spherical ice chamber, the second tray includes a second main ice-making cell coupleable to the first main ice-making cell to form a spherical ice chamber and a second auxiliary ice-making cell formed to extend upward from the second main ice-making cell and having a portion that contacts the first auxiliary ice-making cell, where, as the second tray is moved to separate the second main ice-making cell of the second tray coupled to the first main ice-making cell of the first tray that form the spherical ice chamber, the pressurizing member applies pressure to the second auxiliary ice-making cell of the second tray.

Abstract: An air conditioner for a vehicle is provided which can realize suitable temperature control when having a plurality of evaporators even if the load in each evaporator fluctuates. An air conditioner 1 for a vehicle includes at least a compressor 2, a heat absorber 9 to evaporate a refrigerant, a refrigerant-heat medium heat exchanger 64, and a control device 11, and conditions air of a vehicle interior. The control device 11 calculates target numbers of revolutions TGNCc and TGNCcb of the compressor 2 required to control the temperature of the heat absorber 9 and the temperature of a heat medium cooled by the refrigerant-heat medium heat exchanger 64, respectively, and selects the maximum value of them to control the operation of the compressor 2.

Abstract: A refrigerator includes a compressor, a condenser, an evaporator, switching valve, an ice-making device, a controller, and a first refrigerant pipe and a second refrigerant pipe connected between the condenser and the evaporator. The switching valve is configured to guide the refrigerant condensed in the condenser to the first refrigerant pipe or the second refrigerant pipe. The ice-making device allows the first refrigerant pipe to pass therethrough and is configured to cool water stored in an ice-making tray. The controller is configured to control the switching valve to guide the refrigerant to the ice-making device through the first refrigerant pipe. In response to a temperature of the ice-making tray falling to a level lower than or equal to a reference temperature, the controller is configured to control the switching valve to prevent the refrigerant from being guided to the first refrigerant pipe and supply water to the ice-making tray.

Abstract: The disclosure relates to an immersion cooling system including a tank, an access opening, a first dielectric liquid, a working object and a condensing unit. The tank has a space and a cover. The cover is detachably disposed on the tank to close or open the space selectively. The access opening is in communication with the space of the tank. The first dielectric liquid is accommodated within the space to form a liquid surface. The liquid surface and the access opening are disposed adjacent to each other. The working object is immersed in the first dielectric liquid. The condensing unit is arranged in the space above the liquid surface. When a cooling operation is performed, the access opening is closed, the first dielectric liquid is kept in the space, and the heat generated from the working object is dissipated through the first dielectric liquid and the condensing unit.

Abstract: Systems and methods are provided for cooling air in a vehicle. The system includes a chassis, inside an interior area of a vehicle, with one or more openings that are configured to allow air to enter the chassis to cool a heat generating component in the vehicle and an exhaust duct that directs the air away from the chassis after the air has contacted at least a portion of the heat generating component. The system includes a fan that acts to propel the air through the one or more openings and through the exhaust duct.