Abstract: A water cooling system for showers has a water tank filled with water to be cooled, and a heat exchange loop which includes an internal heat exchange (HX) evaporator immersed into the water within the water tank, and a condenser HX unit positioned externally above the internal evaporator unit. A refrigerant in the loop absorbs the heat from the water in the water tank, circulates in the HX loop, and passes to the condenser HX unit to release heat to ambient air. The water cooling process is passive and does not require any form of external energy. The subject heat transport attains a minimal thermal resistance by two-phase evaporation and condensation process (heat piping) which achieves positive flow at as low as 0.2° C.-1° C. temperature difference between the ambient air and the tank water.

Abstract: A CO2 refrigeration system includes a plurality of compressors configured to circulate a CO2 refrigerant, a suction line configured to deliver the CO2 refrigerant to the compressors, an oil separator configured to separate oil from the CO2 refrigerant, and an oil return line configured to deliver the oil from the oil separator to the suction line. The oil mixes with the CO2 refrigerant in the suction line before reaching the compressors.

Abstract: This disclosure relates to a vapor chamber configured to accommodate a cooling fluid. The vapor chamber includes a first cover, a second cover, a first capillary structure, and a second capillary structure. The second cover and the first cover are attached to each other to form a chamber therebetween. The chamber is configured to accommodate the cooling fluid. The first capillary structure is located in the chamber and stacked on the first cover. The second capillary structure is located in the chamber and stacked on the first capillary structure. The second capillary structure is different from the first capillary structure. A projection of the second capillary structure onto the first cover is smaller than a projection of the first capillary structure onto the first cover.

Abstract: A packaged terminal air conditioner (PTAC) system includes a wall sleeve in which a chassis is mounted. The wall sleeve includes a bottom configured as a drain pan to collect condensate from the chilling components of the chassis. The floor of the drain pan includes a reservoir that extends downward from the floor. The floor slopes downward from the sides of the bottom to the reservoir so that water falling onto the floor flows toward and into the reservoir where it is retained until the height of the water in the reservoir exceed a rim around the drain opening. The rim further prevents treatment pellets from falling into the drain so that they can dissolve in the water captured by the reservoir until the water level of the reservoir flushes the treated water into the drain.

Abstract: A refrigeration unit includes: a refrigeration circuit including a compressor, a condenser, a thermal expansion valve, and an evaporator connected into a circuit; and a heat recovery system including a thermoelectric module, a control module and a battery; the thermoelectric module includes a first side and a second side, the first side being configured to establish a thermal connection with a first heat source and the second side being configured to establish a thermal connection with a second heat source, the first heat source and the second heat source having different temperatures, the thermoelectric module being configured to generate power by the temperature difference between the first heat source and the second heat source; and the control module is configured to store the power generated by the thermoelectric module to the battery, the battery being configured to drive the refrigeration circuit.

Abstract: An electrified vehicle powered by a traction battery includes a coolant loop arranged to convey coolant through at least a radiator, a chiller, and the traction battery to transfer heat from the battery. The vehicle also includes a refrigerant loop in fluid communication with the chiller to selectively circulate refrigerant through the chiller to provide supplemental heat transfer from coolant conveyed through the chiller. The vehicle further includes a vision system having at least one camera with a field of view including a vicinity of the radiator and a controller programmed to detect a radiator coolant leak based on image data output from the vision system. The controller is also programmed to cause a bypass of the radiator within the coolant loop to stop conveyance of coolant through the radiator in response to detecting a coolant leak.

Abstract: An airplane is provided. The airplane includes an environmental control system coupled to an engine and an inlet. The engine provides a bleed. The inlet provides a fresh medium. The environmental control system includes a compressing device comprising a compressor and a turbine. The environmental control system also includes a moisture removal circuit that separately removes moisture from each of the first and second mediums prior to combining the first medium and the second medium to form mixed air.

Abstract: An icemaker assembly includes a housing that defines a slot. A tray is operably coupled to the housing and defines a plurality of recesses. A duct is coupled to the housing and is disposed around the slot. The duct directs cool air along the tray. A fan is operably coupled to the housing at an acute angle relative to a planar extent of the tray. The fan and the duct evenly distribute cool air along the tray.

Abstract: A household refrigeration apparatus includes an interior container having a first wall, a second wall, and a rear wall angled to each other. The interior container bounds a first receiving space for food. An ice maker has a housing, and the housing is formed by a wall area of the first wall of the interior container and a wall area of the second wall of the interior container in certain areas. The housing bounds a receiving space of the ice maker. The housing has a wall unit with a wall element being a component separate from the interior container and having an L-shape in cross-section. The wall element has a first wall plate and a second wall plate, which together form the L-shape. An elongated seal with a hollow portion is disposed on an edge of the wall element and seals the wall element to the interior container.

Abstract: A method for recovering heat (i.e., thermal) energy produced by computer hardware in blockchain (e.g., cryptocurrency) mining operations and utilizing that recovered heat energy in cooling modules. Also, a system for recovering heat energy produced by computer hardware in blockchain (e.g., cryptocurrency) mining operations and utilizing that recovered heat energy in absorption cooling modules which are an ammonia-water absorption refrigerator module and/or an absorption immersion cooling module.

Abstract: A heat dissipation device includes an upper cover, a lower cover, an upper wick, a first wick, a plurality of second wicks, a third wick, and a gas-liquid separation plate. The lower cover and the upper cover together form a sealed vacuum chamber therebetween. The upper wick is attached on a first inner surface of the upper cover and is in fluid communication with the second wicks and the third wick. The first wick is attached on a second inner surface of the lower cover. The second wicks are attached on the lower cover. Third wick is attached on a third inner surface of the lower cover and is connected to and in fluid communication with the first wick. The gas-liquid separation plate is attached on a planar area of the third wick so as to separate a vapor from a liquid in the sealed vacuum chamber.

Abstract: A cooling device includes a cover, a trough connected to the cover, and a fan circulating air that is received from sides of the cooling device. The area above the fan is enclosed by the cover. The cooling device also includes a pump for delivering liquid to one or more pads located in the trough. The cooling device also includes a sensor that controls operating of the fan and the pump.

Abstract: A three-dimensional heat exchanger including first thermally conductive plate, second thermally conductive plate, a plurality of supporting structures, at least one thermally conductive structure, at least one capillary structure and at least one heat pipe. Second thermally conductive plate has at least one through hole. Second thermally conductive plate is attached to first thermally conductive plate so that liquid-tight chamber is formed between first and second thermally conductive plate. An end of each of supporting structures is connected to first thermally conductive plate. Another end of each of supporting structures is connected to second thermally conductive plate. Thermally conductive structure is connected to at least a part of supporting structures. Capillary structure is stacked on first thermally conductive plate, at least a part of supporting structures, and thermally conductive structure. Heat pipe is disposed through the through hole.

Abstract: The present disclosure provides a refrigeration system. The system includes an evaporator unit having a housing configured to receive the refrigerant and an air inlet port configured to receive air. A porous material is disposed within the housing for defining a first compartment and a second compartment. A compressor unit is fluidically coupled to the housing and configured to induce an evacuation action within the housing, which enables air to enter the housing from the ambient surroundings via the air inlet port. The porous material is positioned above the air inlet port for allowing the air into the housing therethrough. The routed air disperses within the housing to form air bubbles, inducing turbulent motion of the refrigerant for converting the refrigerant into a mixture of refrigerant vapors and a cooled refrigerant. A heat exchanger is configured to refrigerate the enclosure.

Abstract: A household refrigeration apparatus has an interior container with a first wall and with a second wall arranged angled thereto. The interior container bounds a first receiving space for food of the household refrigeration apparatus. An ice maker has a housing formed by a wall area of the first wall of the interior container and a wall area of the second wall of the interior container in certain areas. The wall area of the first wall is formed with a wall step with a protrusion, which protrudes into the receiving space of the ice maker, wherein the protrusion is formed as a condensation water drip bar.

Abstract: An HVAC system with a reheat coil is described, the system includes a compressor, a micro-channel condenser and an evaporator. A reversing valve is connected to the compressor, the micro-channel condenser and the reheat coil. The reversing valve is used to direct the refrigerant from the compressor to the micro-channel condenser in a normal mode, and to direct the refrigerant from the compressor to the reheat coil in a reheat mode. The reversing valve can be switched from normal mode to reheat mode when a high pressure condition is detected at an input to the micro-channel condenser, and switched back from reheat mode to normal mode when the high pressure condition has resolved or an amount of time has passed. In the normal mode the refrigerant is returned from the reheat coil into a refrigerant line between the evaporator and the compressor through a restrictor.

Abstract: An apparatus includes a drain pan configured to receive liquid condensate from a horizontal evaporator coil above the drain pan and a drain pan extension coupled to the drain pan. A pin on the front and rear sides of the drain pan extension is fitted and movable within a corresponding notch in the front and rear sides of the drain pan. The drain pan extension is securably configurable in a first configuration and a second configuration. In the first configuration, the drain pan extension extends above the drain pan at a first angle relative to the drain pan. In the second configuration, at least a portion of the drain pan extension extends beyond the left pan side of the drain pan at a second angle, which may be selected for improved capture of liquid condensate from the horizontal evaporator coil.

Abstract: A system and method of controlling corrosion of a heat exchanger, having a hot gas inlet and outlet and a cold side inlet and outlet. The method includes determining a temperature of the heat exchanger at a first selected location, controlling a temperature of a corrosion sensing device to a first selected temperature based on the temperature of the surface of the heat exchanger and determining a corrosion rate associated with the heat exchanger surface at the first selected location for the first selected temperature. The method also includes comparing the corrosion rate to an expected corrosion rate, determining a cold side fluid inlet temperature target for the heat exchanger based at least in part on the comparing, the determined corrosion; and controlling a cold side fluid inlet temperature based at least in part on the determined inlet temperature target, determined corrosion rate, and expected corrosion rate.

Abstract: Disclosed herein is a refrigerator including a cooling cycle mechanism having improved cooling cycle efficiency by more effectively performing heat exchange between a refrigerant discharged from an evaporator and a refrigerant discharged from a condenser. The refrigerator includes a cooling cycle mechanism including a compressor, a condenser, and an evaporator. The refrigerator also includes a first pipe configured including a first heat exchanger and configured to guide the refrigerant from the condenser, to the evaporator. The refrigerator further includes a second pipe including a heat exchanger and configured to guide the refrigerant from the evaporator, to the compressor. The second heat exchanger is adjacent to first heat exchanger and configured to exchange heat with the first heat exchanger. The first heat exchanger and the second heat exchanger are arranged to guide the refrigerant in a same direction.

Abstract: An air conditioning pack of a cooling system includes an air cycle machine assembly, a cabin air compressor assembly, and a mixing duct. The air cycle machine assembly includes a compressor configured to receive an air stream that includes bleed air to generate a compressed air stream. The air cycle machine assembly utilizes a first portion of the compressed air stream to power the compressor. The cabin air compressor assembly receives a second portion of the compressed air stream, and utilizes the second portion to generate compressed ram air. The mixing duct receives the compressed ram air and allows the compressed ram air to mix with one or more of the air stream upstream of the compressor or the compressed air stream downstream of the compressor to generate a hybrid air stream that is used for cooling at least a portion of a vehicle.