Abstract: A thermostat includes a power stealing circuit selectively configured to provide power to the thermostat and to circuit(s) ancillary to the thermostat from power source(s) external to the thermostat, without requiring a common or neutral connection between the thermostat and the power source(s). Exemplary embodiments also are disclosed of a climate control system that includes such a thermostat. This thermostat can power-steal off of existing load wires (e.g., a W and/or Y terminal, etc.) and can provide power for a continuous backlight and/or other device (e.g., a remote sensor and/or low-power transceiver, etc.).

Abstract: The present disclosure describes ice tray devices and methods. In one embodiment, ice tray is included in an ice-making device of a refrigerator. The ice tray can be configured to uniformly distribute water to a plurality of ice-making spaces included in the ice tray. The ice tray can include water supply grooves that provide paths through which water is allowed to flow in the tray body. The dimensions of the water supply grooves can vary enabling control of water and ice formation depth of the water supply grooves can become gradually larger from one end portion of the tray body toward the other end portion of the tray body.

Abstract: A heat exchanger includes: a first flow passage where first liquid flows; a second flow passage where second liquid flows; and a heat exchanger main body configured to exchange heat between the first liquid and the second liquid. The heat exchanger main body includes a cross-sectional area adjuster configured to change a flow passage cross-sectional area of at least one of the first flow passage and the second flow passage by thermal deformation. The cross-sectional area adjuster adjusts a value of the flow passage cross-sectional area in a low temperature range to be larger than a value of the flow passage cross-sectional area in a high temperature range.

Abstract: This disclosure relates to a centrifugal compressor. In a first example, the compressor includes a first impeller provided in a main refrigerant flow path, a second impeller provided in the main refrigerant flow path downstream of the first impeller, and a recirculation flow path. In the first example, the recirculation flow path is provided between a first location and a second location along the main refrigerant flow path. The first location is downstream of the second location, and the second location is downstream of the first impeller. In a second example, the compressor includes an impeller provided in a main refrigerant flow path, and a recirculation flow path provided between a first location and a second location along the main refrigerant flow path. In the second example, the recirculation flow path includes a recirculation volute. Further disclosed is a method for operating a centrifugal compressor.

Abstract: A system and method of controlling a multiple condenser air conditioning system that provides for efficient regulation of air temperature. The refrigeration system includes one or more valves whose operation is preferably controlled by programmable control logic to regulate flow through the refrigerant condenser(s) and sequentially control compressor discharge pressure and temperature in response to demands for heating or reheating of a supply air flow.

Abstract: A method for drying an article with a radio frequency (RF) applicator having anode elements and cathode elements includes capacitively coupling the anode elements, capacitively coupling the cathode elements, capacitively coupling an anode element to a cathode element, and energizing the RF applicator to generate an RF field between anode and cathode elements wherein liquid residing within the field will be dielectrically heated.

Abstract: The invention relates to various ways in which to integrate control valves into the structure of a heat exchanger. The present disclosure relates to a heat exchanger assembly that includes a heat exchanger and a valve integration unit. The heat exchanger includes a plurality of alternating first and second fluid passages in heat exchange relation, and at least one inlet manifold and one outlet manifold interconnected by one of the plurality of first or second fluid passages. The valve integration unit is fixedly attached to heat exchanger and includes a fluid passage in fluid communication with at least one of the inlet and outlet manifolds. A valve mechanism is mounted within the valve integration unit in fluid communication with the fluid passage, the valve mechanism controlling the flow of a heat exchange fluid through said fluid passage.

Abstract: A heat exchanger may include a heat radiating part, in which a plurality of plates is stacked and a plurality of first flow paths and a plurality of second flow paths disposed while crossing each other are formed inside the plurality of plates, the heat exchanging part being configured to mutually heat-exchange working fluids passing through the first and second flow paths, respectively, and a sub-expansion part integrally formed with an inner side of the heat radiating part, connected with the second flow path, and configured to bypass a part of one working fluid among the working fluids flowing into the heat radiating part and heat-exchange the bypassed working fluid with the working fluid passing through the first flow path.

Abstract: A cabinet liquid cooling system is configured to dissipate heat of a cabinet. A flow allocation unit is installed on a single side of the cabinet, is located in space between a side wall of the cabinet and a mounting bar of the cabinet, and is provided with a liquid inlet and a liquid outlet. A liquid cooling system (LCS) control unit is installed at the bottom of the cabinet and cyclically supplies liquid to the flow allocation unit using the liquid inlet and the liquid outlet. A liquid supply branch includes a liquid delivery pipe and a liquid return pipe. A node pipe includes a liquid inlet pipe and a liquid outlet pipe. Both the liquid inlet pipe and the liquid outlet pipe are connected to the corresponding liquid delivery pipe and liquid return pipe using the quick male connector and the quick female connector.

Abstract: A first sensor measures temperature at a first evaporator that cools a first zone. A second sensor measures temperature at a second evaporator that cools a second zone. A controller operates a compressor in a normal cooling mode or a single zone cooling mode. In the normal cooling mode, both the first zone and the second zone are cooled with the compressor operated by the controller in response to temperature measurements from one or both of the first sensor and the second sensor. In the single zone cooling mode, only the second zone is cooled with the compressor controlled by the controller in response to temperature measurements from the second sensor and the controller determining that the first evaporator has a low probability of accumulating frozen moisture on surfaces thereof, and in response to determining a high probability of accumulating frozen moisture on surfaces thereof the compressor is not operated.

Abstract: A heat exchanger including at least one first module and one second module for the heat exchange between a first fluid medium and a second fluid medium, wherein the first fluid medium can be conducted through a closed channel system separate from the second fluid medium, with the closed channel system being able to be flowed around by the second fluid medium and with the second fluid medium being gaseous. A first wetting apparatus is provided for the first module and a second wetting apparatus is provided for the second module by means of which the first module and the second module can be wetted by a third fluid medium, with the first wetting apparatus for the first module being able to be actuated independently of the wetting apparatus for the second module.

Abstract: Methods, processes, apparatus, devices, kits and systems for crystallizing liquid to form slush inside of supercooled to below 32 F closed beverage bottles or cans, beverages in fountain dispensers, desserts, and food items by transmitting ultrasonic signals in short time spans, while allowing for optional illuminating the effects when the supercooled liquid is crystallized into slush.

Abstract: According to an embodiment of the disclosure, an encapsulated phase change material (PCM) heat sink is provided. The encapsulated PCM heat sink includes a lower shell, an upper shell, an encapsulated phase change material, and an internal matrix. The internal matrix includes a space that is configured to receive the encapsulated phase change material. Thermal energy is transferrable between the encapsulated phase change material and at least one of the lower shell and the upper shell. For a particular embodiment, the upper shell is coupled to the lower shell at room temperature and room pressure.

Abstract: A condensation trap comprising an inlet chamber, a vent chamber and an outlet chamber. The inlet chamber is configured to receive condensate fluid through an external opening therein. The vent chamber is in fluid communication with the inlet chamber via a first passageway that includes an internal opening of the inlet chamber. The internal opening is located substantially at an opposite end of the vent chamber as the external opening. The outlet chamber is in fluid communication with the vent chamber via a second passageway that includes an internal opening in a sidewall of the vent chamber and an interior opening in an end of the outlet chamber. The outlet chamber is configured to transmit the condensate fluid through an exterior opening located at an opposite end of the outlet chamber. A vent volume portion is greater than a total volume of an internal space of the inlet chamber.

Abstract: A method for operating a refrigeration system in order to perform temperature control of a closed volume is disclosed. The refrigeration system comprising a compressor, a condenser, an expansion device and an evaporator connected in series in a refrigerant flow path. The refrigeration system further comprises one or more fans arranged to cause a flow of air across the evaporator. The compressor is controlled by switching the compressor on or off in accordance with a measured temperature, Tsup, of air which has passed across the evaporator and is being supplied to the closed volume, and in order to achieve a set point temperature, Tset, in the closed volume. During this a compressor switching pattern is determined. Temperature fluctuations inside the closed volume are minimized, and energy is conserved.

Abstract: A system for drying moist, particulate material includes a steam dryer having a container containing superheated steam. Upper and lower heat exchangers, with a channel extending through them, are located in the container. An impeller generates a flow of steam upward in the container outside the heat exchangers and downward through the channel. Guide plates around the heat exchangers guide the moist, particulate material from an inlet in the lower part of the container around the heat exchangers, subjecting the material to the flow of the steam, thereby drying the material. A steam conduit supplies a primary steam flow to the lower heat exchanger, which condenses the primary steam flow into a flow of hot water that is directed to a flow generator that generates a fluid flow from the hot water flow. A fluid conduit leads the fluid flow to the upper heat exchanger.

Abstract: The present disclosure provides: a method for recycling waste-heat from a heat-dissipation facility, the method comprising: (a) collecting hot waste air generated in the heat-dissipation facility; (b) changing the hot air to cool air to change cool water to hot water; (c) feeding the cool air to the heat-dissipation facility to cool air in the heat-dissipation facility; and (d) increasing a humidity in the heat-dissipation facility using the hot water.

Abstract: A heat pump system for a vehicle includes: a battery cooling line connected with a battery module, and water flowing through the battery cooling line; a chiller provided at the battery cooling line, connected with a coolant line of an air conditioner through a connection line, and configured to control the cooling water selectively introduced into the chiller by heat-exchanging the cooling water with coolant; a cooling part comprising a radiator and a first water pump connected with each other by a cooling line, configured to circulate the water through the cooling line to cool an electrical device, and connected with the battery cooling line through a first valve; and a bypass line configured to selectively connect the connection line with the coolant line through a second valve provided at the coolant line.

Abstract: The invention discloses instantaneous cooler/freezer using orbital shake method. The instantaneous cooler/freezer using orbital shake method includes a cooling liquid, a flow pump, a reserve tank, a plate heat exchanger, a liquid entrance hole, a cooling chamber, an exit hole, a cooling gas entrance, a gas exit hole, a plurality of cooling liquid distribution channels, an expandable envelope with pockets, a valve, a flat inner cover, a cooling chamber cover having led lights placed at sides for each bottle to inform a user in case of a problem, a rakor, a plurality of conical springs, a laser thermometer, a reduced motor, an eccentric bearing, is used to enables the cooling chamber to be in orbital shake motion, a plurality of roller ball bearings, a plurality of horizontal guide bearings. The instantaneous cooler/freezer using orbital shake method specifically build for packaged beverages, food, and similarly all packaged objects.

Abstract: Methods and systems for monitoring an air filter installed in an HVAC system may include operating the HVAC system in an air filter monitoring mode such as, for example, a fan only mode, and measuring, for example, a differential pressure across the air filter when the HVAC system is operating in the air filter monitoring mode. The method may include evaluating a status of the air filter using, for example, the measured differential pressure value, and in some cases, display the status on a display of an HVAC controller.