Abstract: A drain assembly for a refrigeration appliance in communication with an appliance drain. The drain collects condensate from an evaporator behind the rear wall of the cabinet and transfers the condensate to the drain assembly in the machine compartment of the refrigeration appliance. The drain assembly then transfers the condensate to an extension tube easily accessible to an operator. The drain assembly includes an inlet, a main body, and an outlet. The inlet is secured to the appliance drain and the outlet is secured to the extension tube. The main body also comprises a downward slope in between the inlet and the outlet. In one example, a vacuum relief system can equalize a pressure differential between an interior of the main body and an exterior environment.

Abstract: A cooler system includes a plurality of cooler units; a condensed water flow path, an aqueous medium in the condensed water flow path sequentially flowing through each of the cooler units; a cooling water flow path, an aqueous medium in the cooling water flow path sequentially flowing through each of the cooler units in a flow direction opposite to a flow direction of the aqueous medium in the condensed water flow path; a plurality of current sensors used for detecting working currents of the cooler units; water temperature sensors used for detecting an entering water temperature and a leaving water temperature of the cooling water flow path; at least one virtual temperature sensor arranged between the cooler units and used for acquiring a middle water temperature between the cooler units; and a controller.

Abstract: A dehumidification structure includes: a moisture absorbent which has temperature sensitivity for exhibiting hydrophobicity and releasing water at a temperature equal to or higher than a predetermined temperature and for exhibiting hydrophilicity and absorbing water at a temperature lower than the predetermined temperature; a moisture absorbent chamber in which the moisture absorbent is disposed; and a water draining mechanism configured to drain water released from the moisture absorbent and accumulated in the moisture absorbent chamber. The moisture absorbent is provided to allow reception of solar heat or heat from a heating body that is heated by sunlight. The water draining mechanism is configured to drain the water using weight of the water when an amount of water released by the moisture absorbent and accumulated in the moisture absorbent chamber reaches at least a predetermined amount.

Abstract: Provided are a superhigh temperature heat pump system and method capable of preparing boiling water not lower than 100° C., belonging to the technical field of heat pumps. The system comprises a compressor (1), primary and secondary evaporators (5, 6), an expansion mechanism (4), primary and secondary condenser/coolers (2, 3), water pumps (7, 8, 13), water tanks (9, 10), and a valve (14). The solution is based on the compressor exhaust heat enthalpy utilization minimum entropy gain principles/technology, and utilizes exhaust heat enthalpy sensible heat and latent heat in stages. The present invention has an output water temperature higher than 100° C., expands the functions of current heat pump water heaters which can only prepare hot water lower than 100° C., and can replace electric water heaters, save energy and increase energy utilization rates.

Abstract: An electronic expansion valve and an assembly method therefor. The electronic expansion valve includes a screw rod component, a movable connection component, a valve pin component and an elastic element. One end of the elastic element abuts the movable connection component, and the other end thereof abuts the valve pin component. In the period from the valve pin component closing the valve port part to the screw rod component moving a pre-set displacement amount in the valve closing direction, the elastic element does not generate an elastic force pushing the valve pin component towards the valve port part; and in the period from the valve pin component closing the valve port part to in a case that the screw rod component moving more than the pre-set displacement amount in the valve closing direction, the elastic element generates an elastic force pushing the valve pin component towards the valve port part.

Abstract: An evaporative cooling device for a refrigeration system includes one or more heat exchanger coils, a first moisture panel, a second moisture panel, a first nozzle array, a second nozzle array, a moisture sensor, and a controller. The first moisture panel and the second moisture panel are separated by a distance and disposed external to the one or more heat exchanger coils. The first nozzle array is disposed external to the first moisture panel and the second nozzle array is disposed external to the second moisture panel. The first nozzle array and the second nozzle array are configured to provide an atomized spray of electrostatically charged droplets. The moisture sensor is configured to provide a signal representative of a moisture level. The controller is configured to receive the signal representative of the moisture level and control a supply of water.

Abstract: An augmented heat transfer system can be used to control the humidity of adjacent conditioned spaces by selectively absorbing latent heat energy from a relatively warm space, such as a loading dock, and discharging this energy in the form of sensible heat to an adjacent relatively cold space, such as a freezer served by the loading dock. This transfer of sensible heat energy into the cold space induces a vapor compression system to remove sufficient moisture from the cold space to avoid uncontrolled precipitation. At the same time, the process of removing moisture/latent heat from the warm space can also be used to reduce humidity in the warm space via condensation on a cold evaporator. Therefore, in operations where the warm space and the cold space are both nominally sealed from ambient air, such as an indoor loading dock serving a freezer, the augmented heat transfer system can eliminate uncontrolled precipitation in the freezer while also mitigating moisture ingress to the freezer from the dock space.

Abstract: A picnic cooler that includes a food compartment, a gas tank compartment, an off/on electric spigot, a first sealing rings with a first apertures a second sealing ring with a second aperture, and two cooling apparatuses. The cooling apparatus includes a twisting piping system and an upper metallic plate that serves as the bottom of the food compartment. The ratio between the diameter of the second aperture and the diameter of the first aperture is between 1.8 to 2.2 and the ratio between the inner surface area of the food compartment and the outer surface area of the first and second piping systems is between 9 to 17.

Abstract: Systems and methods to create and store a liquid phase mix of natural gas absorbed in light-hydrocarbon solvents under temperatures and pressures that facilitate improved volumetric ratios of the stored natural gas as compared to CNG and PLNG at the same temperatures and pressures of less than ?80° to about ?120° F. and about 300 psig to about 900 psig. Preferred solvents include ethane, propane and butane, and natural gas liquid (NGL) and liquid pressurized gas (LPG) solvents. Systems and methods for receiving raw production or semi-conditioned natural gas, conditioning the gas, producing a liquid phase mix of natural gas absorbed in a light-hydrocarbon solvent, and transporting the mix to a market where pipeline quality gas or fractionated products are delivered in a manner utilizing less energy than CNG, PLNG or LNG systems with better cargo-mass to containment-mass ratio for the natural gas component than CNG systems.

Abstract: To reduce the possibility that temperature of refrigerant discharged from a compressor of a refrigeration apparatus becomes excessively high by controlling torque of a motor built into the compressor, the compressor includes the motor having rotation thereof controlled by inverter control. An inverter controller controls torque of the motor using inverter control when operation frequency of the compressor is at least one value within a range of from 10 Hz to 40 Hz. When at least the operation frequency is within the range of from 10 Hz to 40 Hz, torque of the motor is controlled, and under a predetermined condition in which temperature of refrigerant discharged from the compressor easily becomes excessively high, a device controller controls devices provided in a refrigerant circuit such that refrigerant sucked into the compressor is placed in a wet vapor state.

Abstract: A mechano-caloric stage includes an elongated outer sleeve. An elongated inner sleeve is disposed within the elongated outer sleeve. A pair of pistons is received within the elongated inner sleeve. Each of the pair of pistons is positioned at a respective end of the elongated inner sleeve. The pair of pistons are moveable relative to the elongated inner sleeve. A mechano-caloric material is disposed within the elongated inner sleeve between the pair of pistons. The mechano-caloric material is compressible between the pair of pistons.

Abstract: The invention relates to an expansion unit for installation in a refrigerant circuit, including an expansion system having an subcooling unit for subcooling a mass flow of a refrigerant that is supplied to the expansion unit, having an expansion/compression unit including an expander stage and a compressor stage, having a branching point that splits off a subcooling mass flow from a total mass flow supplied to the expansion unit and that is connected to a supply conduit that guides the subcooling mass flow to an inlet of the subcooling unit, having an expansion member that expands the subcooling mass flow to a subcooling pressure, having a connection conduit that supplies the subcooling mass flow exiting from the subcooling unit to the compression stage, which for its part compresses the subcooling mass flow to a return high pressure, and having an electrically operated controller that detects an ambient temperature and/or a temperature of the mass flow of refrigerant that is supplied to the expansion unit an

Abstract: Examples of heat exchanger systems for active radiative cooling are described. In one example, the system includes a heat exchanger and a spectrally selective surface material on at least one surface of the heat exchanger. The spectrally selective surface material exhibits high reflectivity at shorter wavelengths and high emissivity at longer wavelengths. The system can also include an active cooling system in some cases to actively transfer heat to the heat exchanger. The use of spectrally selective surfaces that operate at temperatures exceeding that of the outdoor ambient for which convective losses augment radiation losses have advantages over passive cooling, such as but not limited to: providing a better match to cooling loads, reducing the heat rejection surface area required to achieve a desired cooling rate, and increasing the heat transferred to deep space through the atmospheric window so as to simultaneously cool infrastructure, devices, buildings, and Earth.

Abstract: Provided is a refrigeration apparatus capable of reducing the leakage of a refrigerant even when a refrigerant leak occurs in a defrosting operation of a usage-side heat exchanger. When a refrigerant leak situation around a usage-side heat exchanger satisfies a predetermined leak condition in performing a defrosting operation with a connection state of a four-way switching valve brought into a defrosting connection state in which a heat source-side heat exchanger functions as an evaporator for a refrigerant and a usage-side heat exchanger functions as a radiator for the refrigerant, a controller performs density lowering control to lower a refrigerant density in the usage-side heat exchanger while maintaining the four-way switching valve at the defrosting connection state.

Abstract: Mounting hardware is installed to a cryogenic storage device to accommodate an automation system for automated storage and retrieval. A guideplate at an upper surface of a cover of the cryogenic storage device is positioned such that the guideplate is aligned in a predefined relation to an access port at the upper surface. One or more mounting posts are affixed at a location as indicated by the guideplate. A vacuum is then pulled within the cover, and the mounting hardware is affixed to the at least one mounting post.

Abstract: An evaporative cooling system for a radiator and method for retrofitting an existing radiator with an evaporative cooling system is provided. The cooling system includes at least one spray nozzle configured to be connected to the radiator upstream of a radiator core and configured to distribute a mist of water to the radiator core; a water source configured to hold water for conveyance to the at least one spray nozzle; and a conduit assembly for conveying water from the water source to the at least one spray nozzle. The evaporative cooling system provides a quick and inexpensive solution for cooling radiators in situations where short-term extreme temperature events occur.

Abstract: An air conditioning system includes: outdoor and indoor heat exchangers; first, second, and third control valves, which block refrigerant flow when fully closed; and a pressure adjuster. The first and second control valves are disposed in a gas-side refrigerant flow path (GL) between the outdoor and indoor heat exchangers. The third control valve is disposed in a liquid-side refrigerant flow path (LL) between the outdoor and indoor heat exchangers. The pressure adjuster adjusts the pressure of refrigerant in an indoor-side refrigerant flow path (IL) between the first control valve and the second control valve or the third control valve and the indoor heat exchanger. The pressure adjuster includes a pressure adjusting valve that bypasses refrigerant in the indoor-side refrigerant flow path (IL) to an outdoor-side refrigerant flow path (OL) between the first control valve and the second control valve or the third control valve and the outdoor heat exchanger.

Abstract: An example HVAC system includes a furnace including a gas valve, a circulator motor to circulate air through the HVAC system, and a current sensor configured to detect a current supplied to the circulator motor. The system also includes a controller configured to disable the gas valve when a detected current supplied to the circulator motor is outside of a specified operating current range. A detected current to the circulator motor outside of the specified operating current range is indicative of a malfunction of the circulator motor. Example methods of operating a gas valve in an HVAC system are also disclosed.

Abstract: A method for power and load management of a transport climate control system using a vehicle electrical system is provided. The method includes a controller determining a power draw of the transport climate control load network, determining an amount of power available from the vehicle electrical system, and determining whether the power draw of the transport climate control load network exceeds the amount of power available from the vehicle electrical system. Also, the method includes shedding one or more loads of the transport climate control load network to reduce the power draw of the transport climate control load network until the power draw of the transport climate control load network matches the power available from the vehicle electrical system. Further, the method includes supplying power from the vehicle electrical system to the transport climate control load network.

Abstract: There is provided a cryocooler including a first compressor, a second compressor, a cold head that has a high pressure port and a low pressure port, a high pressure line that is configured such that a refrigerant gas is able to flow from the first compressor and the second compressor to the high pressure port of the cold head via a merging portion, the high pressure line including a first high pressure sub-line and a second high pressure sub-line, and a low pressure line that is configured such that the refrigerant gas is able to flow from the low pressure port of the cold head to the first compressor and the second compressor via a diverting portion, the low pressure line including a first low pressure sub-line and a second low pressure sub-line.