Abstract: A refrigeration system includes a compressor; a condenser; an expansion valve having a body with an expansion valve inlet and an expansion valve outlet; an evaporator all arranged in a refrigeration circuit; and a controller. The expansion valve body has a pathway comprising an inlet body capillary tube flow-connected to the expansion valve inlet, and an outlet body capillary tube flow-connected to the expansion valve outlet. The expansion valve comprises a solenoid operated valve element that is selectively positionable between the inlet body capillary tube outlet and the outlet body capillary tube inlet. The controller digitally controls the valve element to position the valve element either to allow flow through the pathway in an open position or to block flow through the pathway in a closed position.

Abstract: The present disclosure discloses an electronic cooling anti-condensation system, and an anti-condensation method for the same. The system comprises a testing chamber, electronic cooling plates, temperature sensors, a temperature and humidity sensor, a cooling plate control unit, and a main controller. The main controller is electrically connected to the temperature sensors, the temperature and humidity sensor, and the cooling plate control unit. The main controller is capable of calculating a dew point value of the air in the testing chamber according to a temperature value and a humidity value of the interior the testing chamber acquired by the temperature and humidity sensor, and if the dew point value of the air is greater than a pre-determined threshold, the main controller controls the cooling plate control unit to reduce the number of operating electronic cooling plates or output powers of the electronic cooling plates, wherein the pre-determined threshold is a temperature T1° C.

Abstract: A refrigerator includes a partition wall provided between first and second storage chambers and having a partition wall insulator, an evaporator case arranged in the partition wall and communicating with the first and second storage chambers, an evaporator installed inside the evaporator case, a grill cover provided on a rear side of the evaporator case and configured to accommodate a blower fan, and support guides provided in the grill cover and supporting a rear portion of the evaporator, such that an internal storage space of the refrigerator is increased, and a withdrawal distance of a drawer provided in the refrigerator is increased.

Abstract: Closed-loop refrigeration cycles for liquid oxygen densification are disclosed. The disclosed refrigeration cycles may be turbine-based refrigeration cycles or a Joule-Thompson (JT) expansion valve based refrigeration cycles and include a refrigerant or working fluid comprising a mixture of neon or helium together with nitrogen and/or oxygen.

Abstract: A thermal management system is described. The thermal management system includes an open circuit refrigeration circuit that has a refrigerant fluid flow path, with the refrigerant fluid flow path including a receiver configured to store a refrigerant fluid, an ejector having a primary flow inlet configured to receive refrigerant, a liquid separator, an evaporator configured to extract heat from a heat load that contacts the evaporator, with the evaporator coupled to the ejector and the liquid separator, and an exhaust line coupled to a vapor side outlet of the liquid separator. In operation, the evaporator in the open circuit refrigeration circuit would be coupled to a heat load.

Abstract: A gas dehumidification device having two heat exchangers, each including a first and second fluid line. Each second fluid line at least partially surrounds the respective first fluid line. Each heat exchanger thermally couples a fluid in the respective heat exchanger second fluid line with a first coolant on an outside surface of the respective heat exchanger second fluid line. The gas dehumidification device further comprises a two-position valve. In a first position, a fluid comprising a higher temperature than the first and/or second coolant is conducted into the first heat exchanger first fluid line and in the second position, the fluid is conducted into the second heat exchanger first fluid line. A controller is configured to place the valve selectively into the first or second position.

Abstract: An air-conditioning apparatus includes a refrigeration circuit, a first shut-off device, a leakage detection device, and a controller configured to perform a refrigerant recovery operation in a case where refrigerant leakage is detected. At the time of the refrigerant recovery operation, the controller performs control to perform a first operation of recovering refrigerant from a load-side heat exchanger into an accumulator and a heat-source-side heat exchanger, and a second operation of moving refrigerant in the heat-source-side heat exchanger to the accumulator. In the first operation, the first shut-off device is closed, a flow passage switching device is brought into a first connection state, and a compressor is driven. The second operation is performed after the first operation, and in the second operation, the connection state of the flow passage switching device is switched to a second connection state in a state where the compressor is being operated.

Abstract: A cooling system is provided that partially floods one of its freezers (e.g., the ice cream freezer) such that the refrigerant discharged by the freezer includes a liquid component. In this manner, the freezers in the system can operate at the same saturated suction temperature. A heat exchanger can be used to transfer heat to the liquid component of the discharge to evaporate the liquid component.

Abstract: An ice maker is provided that may include cooperating primary and secondary coils arranged on opposite sides of a freezer cabinet wall for wirelessly transmitting electrical power through the freezer cabinet wall to energize various ice maker components. During the wireless electrical power transmission, a data/control signal may be superimposed on the electrical power waveform to allow wireless transmission of the control signal, which can be processed by a logic circuitry for implementing component control methodologies.

Abstract: A refrigerator includes a cabinet, a first inner case that defines a freezing compartment, a second inner case that defines a refrigerating compartment, a thermal siphon unit that is configured to carry a working fluid for heat transfer and that has a closed loop shape that includes a first part arranged at an outer side of the first inner case and a second part arranged at an outer side of the second inner case, and a cool air storage unit arranged in a space partitioned in the first inner case. The cool air storage unit is configured to accommodate cool air of the freezing compartment and transfer the cool air to the first part of the thermal siphon unit arranged outside of the first inner case.

Abstract: A vehicle thermal management system for significantly improving thermal management performance includes a first group including a battery, a second group including one or more power electronics (PE) components, a plurality of cooling lines in thermal communication with an air-cooled radiator, and a six-way valve. The six-way valve includes a housing having a plurality of inlets and a plurality of outlets, a valve member mounted to be rotatable in the housing, and an actuator driving the valve member. The housing has a plurality of passages allowing the plurality of inlets to selectively communicate with the plurality of outlets by rotation of the valve member. In addition, the plurality of passages include a plurality of inner passages formed in an interior space of the housing, and a plurality of outer passages formed in an exterior space of the housing.

Abstract: A refrigerator that may include a cabinet to define a storage space, a door to open and close the storage space, a dispenser provided in the door to dispense hot water, a hot water tank through which water flows so as to heat water introduced into the door, a heater provided in the door to heat the hot water tank, a water inflow passage through which water is supplied to the hot water tank, a water discharge passage guiding hot water discharged from the hot water tank to the dispenser, a flow rate sensor provided in the water inflow passage to measure a flow rate of water flowing through the water inflow passage, a water inflow valve provided in the water inflow passage to adjust a flow of water in the water inflow passage, a water discharge valve provided in the water outlet passage, an input provided in the door to input a temperature of the hot water to be dispensed and a hot water dispensing command, and a controller to control the water inflow valve and the water discharge valve.

Abstract: A method for conditioning air in a test space of a test chamber which receives test material. A temperature in a range of ?20° C. to +180° C. is established within the test space with a cooling device. The cooling device includes a cooling circuit with a refrigerant, a heat exchanger, a compressor, a condenser and an expansion element. An internal heat exchanger of the cooling circuit is connected to a high-pressure side of the cooling circuit upstream of the expansion element and downstream of the condenser and to a low-pressure side of the cooling circuit upstream of the compressor and downstream of the heat exchanger and is used to cool the refrigerant of the high-pressure side. A zeotropic refrigerant is used and the internal heat exchanger is used to cool the refrigerant of the high-pressure side to lower an evaporation temperature at the expansion element.

Abstract: A desuperheater of a heating, ventilation, and/or air conditioning (HVAC) system includes a first conduit defining a first fluid flow path configured to receive a refrigerant, and a second conduit defining a second fluid flow path and configured to facilitate heat transfer between the first fluid flow path and the second fluid flow path. The desuperheater also includes an inlet of the second conduit configured to receive collected water into the second fluid flow path. The desuperheater also includes a ventilation hole disposed in the second conduit and configured to vent water vapor from the second fluid flow path.

Abstract: A method and system capable of variably adjusting an indoor temperature of a vehicle according to characteristics of an object to be protected in the vehicle when a driver has turned off the engine and exited the vehicle are provided. The method includes determining whether a current indoor temperature of the vehicle exceeds a predetermined allowable temperature of an object to be protected and switching an IG terminal of a key box of the vehicle to an ON state. A sustainable time of indoor temperature control of the vehicle is calculated in response to determining that the current indoor temperature of the vehicle exceeds the predetermined allowable temperature of the object to be protected. The indoor temperature of the vehicle is adjusted to be within a predetermined allowable temperature range or indoor air of the vehicle is circulated according to the sustainable time.

Abstract: A refrigeration system includes a compressor, a condenser, a heat transfer component, and a refrigerant loop arranged to allow a flow of a refrigerant fluid. The compressor, the condenser, and the heat transfer component are connected in the refrigerant loop. The system further includes a bypass path extending between an output side of the compressor in the refrigerant loop and an input side of the heat transfer component in the refrigerant loop. A bypass valve is connected in the bypass path. A control circuit is in communication with the bypass valve. The control circuit is configured to open the bypass valve to allow the refrigerant fluid to pass to the heat transfer component thereby increasing the refrigerant fluid provided to the heat transfer component and artificially increasing a load on the refrigeration system. Other examples refrigeration system and examples methods are also disclosed.

Abstract: In some examples, a method for controlling the heating, ventilation, and air conditioning (HVAC) system in a building includes receiving user input indicating a fallback temperature sensor from a plurality of temperature sensors in the building, the plurality of temperature sensors in the building being associated with a plurality of spaces within the building. The method also includes determining, by the controller, that the plurality of spaces within the building are unoccupied. The method further includes determining, by the controller, a temperature sensed by the fallback temperature sensor based on communication between the controller and the fallback temperature sensor. The method includes causing, by the controller, the HVAC system to turn on or off based on the temperature at the fallback temperature sensor in response to determining that the plurality of spaces within the building are unoccupied.

Abstract: A graphical display device for mounting to a door of an appliance includes an electronic visual display having a display screen, a housing having a receptacle for receiving the electronic visual display and a mount for affixing the housing to the door of an appliance. The housing additionally includes an internal cavity with a controller retained within the internal cavity, with the controller being operable to selectively enable visual display information to be displayed on the display screen. In a particular embodiment the graphical display device is configured as a housing with the housing including a grip portion and one or more mounts extending rearwardly from the grip portion. The controller may include an interface enabling connection with a remote computer for controlling the visual display information to be displayed on the display screen.

Abstract: An environmental control system of an aircraft includes a ram air circuit with a ram air shell having at least one heat exchanger positioned therein, a dehumidification system arranged in fluid communication with the ram air circuit, a compression device arranged in fluid communication with the ram air circuit and the at least one dehumidification system, and an expansion device arranged in fluid communication with the ram air circuit. At least one of the compression device and the expansion device is selectively operable to supplement the ram air within the ram air circuit to meet a demand of the aircraft.

Abstract: A portable misting system includes a carrying case, a fluid pump arranged within the carrying case, and a power source arranged within the carrying case to provide electrical power to the fluid pump. A working fluid source provides a working fluid to the fluid pump via a supply line, a distribution line receives a pressurized working fluid from the fluid pump, and one or more spray nozzles are coupled to the distribution line to discharge the pressurized working fluid as a mist.