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: Disclosed is a temperature detection device. The device for detecting temperature of a processing liquid for substrate processing according to an embodiment includes a temperature measurement sensor installed adjacent to an outer surface of a tube through which the processing liquid flows, in which the temperature measurement sensor senses the temperature of the processing liquid in the tube.

Abstract: An apparatus and method, according to an exemplary aspect of the present disclosure includes, among other things, a battery pack having a coolant inlet and a coolant outlet, a coolant source to cool the battery pack, and a proportional valve in communication with the coolant inlet and the coolant outlet, and in communication with the coolant source. A battery control module controls the proportional valve such that a direction of flow is switchable at the coolant inlet and the coolant outlet based on temperatures at the coolant inlet and the coolant outlet to provide bi-directional cooling flow through the battery pack. The battery control module directly connects the coolant outlet to the coolant inlet via the proportional valve to bypass the coolant source in response to a predetermined condition.

Abstract: A refrigeration apparatus (1) includes a main refrigerant circuit (2) including a positive displacement compressor (4), a condenser (6), an expansion valve (8), and an evaporator (10), through which a refrigerant circulates successively in a closed loop circulation, a lubrication refrigerant line (18) connected to the main refrigerant circuit (2) between the condenser (6) and the expansion valve (8) or to the condenser (6), in which circulates a portion of the refrigerant of the main refrigerant circuit (2) and connected to the compressor (4) for lubrication of said compressor (4) with the refrigerant, at least one lubrication refrigerant storing cavity (70) connected to the lubrication refrigerant line (18), the lubrication refrigerant storing cavity (70) being configured to store liquid refrigerant for lubrication of the compressor (4) said at least one lubrication refrigerant storing cavity (70) being provided within the compressor (4).

Abstract: A method includes providing a first metal sheet and a second metal sheet, printing patterns of a plurality of obstructers, a plurality of channels, an evaporator channel, a condenser channel, and a connecting channel on the first metal sheet, bonding the first metal sheet and the second metal sheet to each other, separating the first metal sheet and the second metal sheet from each other to form the plurality of channels, the evaporator channel, the condenser channel, and the connecting channel by introducing a fluid between the first metal sheet and the second metal sheet, introducing working fluid in the plurality of channels, and sealing the first metal sheet and the second metal sheet.

Abstract: A method of forming frozen beverage blocks from a liquid beverage. The method may include introducing a beverage into a hot beverage reservoir of a beverage receiving subsystem to initiate the process. Next, the beverage may flow from the hot beverage reservoir of the beverage receiving subsystem into a cooling subsystem. The flow from the hot beverage reservoir into and through the cooling subsystem may be done entirely via gravity. Cool air may be blown across the cooling subsystem to cool the beverage as the beverage flows through the cooling subsystem. Upon the temperature of the beverage being measured at or below a predetermined lower threshold temperature, the beverage may be permitted to flow, via gravity, from the cooling subsystem into a cool beverage reservoir of a freezing subsystem. The freezing subsystem may be configured to convert the beverage from a liquid into frozen beverage blocks.

Abstract: A plurality of heat transfer pipes; a first header and a second header to which both ends of each of the heat transfer pipes that are disposed in parallel are fixed, respectively; a plurality of plate shaped fins through which each of the heat transfer pipes is penetrated and that are provided at intervals in a direction in which the heat transfer pipes extend between the first header and the second header; and a fan that circulates an airflow between the plate shaped fins are included. The first header and the second header are formed to be sectioned into multiple rows, the heat transfer pipes are disposed densely in an sectioned area of the first header and the second header, and the heat transfer pipes are disposed sparsely in an area between the sectioned areas of the first header and the second header.

Abstract: A system has a first compressor and a second compressor. A heat rejection heat exchanger is coupled to the first and second compressors to receive refrigerant compressed by the compressors. The system includes an economizer for receiving refrigerant from the heat rejection heat exchanger and reducing an enthalpy of a first portion of the received refrigerant while increasing an enthalpy of a second portion. The second portion is returned to the compressor. The ejector has a primary inlet coupled to the means to receive a first flow of the reduced enthalpy refrigerant. The ejector has a secondary inlet and an outlet. The outlet is coupled to the first compressor to return refrigerant to the first compressor. A first heat absorption heat exchanger is coupled to the economizer to receive a second flow of the reduced enthalpy refrigerant and is upstream of the secondary inlet of the ejector. A second heat absorption heat exchanger is between the outlet of the ejector and the first compressor.

Abstract: An apparatus includes a first expander, a flash tank, a first load, a first work recovery compressor, a valve, and a first compressor. The first expander expands a refrigerant. The flash tank stores a refrigerant from the expander. The first load uses the refrigerant from the flash tank to cool a space proximate the first load. The work recovery compressor compresses the refrigerant from the first load and is driven by the first expander. The valve reduces the pressure of the refrigerant from the work recovery compressor below a threshold. The first compressor compresses the refrigerant from the valve.

Abstract: A mounting assembly with wire-leaded electronic power components for an inverter of an electric compressor of a climate control system includes a support frame structure with a bottom forming an upper side and an underside, and a multiplicity of passages from the upper side to the underside for securement elements for securing the support frame structure on a motor housing. On the underside of the bottom a hollow receiving volume is implemented. A leaded power module or power semiconductor is embedded. In each hollow receiving volume is a contact region for localized contact in places of the hollow receiving volume with an upwardly facing surface of power semiconductor or power module. The opposite, downwardly facing surface of the semiconductor or the power module forms a portion of the lower outer surface area of the mounting assembly. An assembly of the mounting assembly with a compressor motor housing is also provided.

Abstract: Disclosed is a rotating cylinder enthalpy-adding piston compressor. The compressor is a two-stage rotating cylinder piston compressor, including a first-stage rotating gas cylinder, a first gas cylinder liner, a first piston, and a second-stage rotating gas cylinder, a second gas cylinder liner, and a second piston, and further including an enthalpy-adding assembly connected between the first-stage rotating gas cylinder and the second-stage rotating gas cylinder for supplying gas and adding enthalpy between the two stages of rotating cylinders.

Abstract: A heat pump system including a compressor mounted on a refrigerant circulation line for compressing and discharging refrigerant. An internal heat exchanger is mounted inside an air-conditioning case. An evaporator is mounted inside the air-conditioning case. An external heat exchanger is mounted outside the air-conditioning case. A first expansion means is mounted on the refrigerant circulation line between the internal heat exchanger and the external heat exchanger to selectively expand refrigerant discharged from the internal heat exchanger. A second expansion means is mounted on the refrigerant circulation line of an inlet side of the evaporator to expand the refrigerant supplied to the evaporator. A coolant circulation line is configured to circulate coolant toward electronic units of the vehicle. A refrigerant-coolant heat exchanger is configured to exchange heat between the refrigerant flowing the refrigerant circulation line and the coolant circulating through the coolant circulation line.

Abstract: A vehicle includes a passenger cabin, an inverter, and a coolant system having conduit arranged to circulate coolant through the inverter and an evaporator. A refrigerant system includes a condenser and conduit arranged to circulate refrigerant through the condenser and through the evaporator to absorb heat generated by the inverter. A climate control system is arranged to circulate an airstream through the condenser and into the cabin to heat the cabin.

Abstract: An apparatus includes a high side heat exchanger, a subcooler heat exchanger, a flash tank, a load, and a compressor. The high side heat exchanger removes heat from a refrigerant. The subcooler heat exchanger receives the refrigerant. The flash tank stores the refrigerant. During a first mode of operation, the load uses the refrigerant to cool a space proximate the load and the compressor compresses the refrigerant. During a second mode of operation, the subcooler heat exchanger receives the refrigerant from the flash tank, transfers heat from the refrigerant from the high side heat exchanger to the refrigerant from the flash tank and directs the refrigerant from the flash tank to the compressor. During the second mode of operation, the compressor compresses the refrigerant from the subcooler heat exchanger and directs the compressed refrigerant to the load to defrost the load.

Abstract: A dehumidification system for a heat pump, a method of operating a heat pump system, and a method of operating a refrigeration system are provided. The method of operating a heat pump system includes circulating refrigerant in a refrigerant circuit having a compressor (12), selectively communicating refrigerant from the compressor to an indoor heat exchanger (18) during a heating mode or to an outdoor heat exchanger (16) during a cooling mode or a reheat mode, selectively communicating refrigerant to a reheat heat exchanger during the reheat mode, and regulating a refrigerant volume in the reheat heat exchanger.

Abstract: A system includes a high side heat exchanger, a first load, a second load, a first compressor, a second compressor, and a third compressor. The high side heat exchanger removes heat from a refrigerant. The first load uses the refrigerant to remove heat from a first space proximate the first load. The second load uses the refrigerant to remove heat from a second space proximate the second load. The first compressor compresses the refrigerant from the first load and sends the refrigerant to the first load. The refrigerant defrosts the first load. The second compressor compresses the refrigerant from the second load and the refrigerant from the first load that defrosted the first load. The third compressor compresses the refrigerant from the first compressor.

Abstract: Disclosed are a refrigerator and a control method thereof. The refrigerator according to one aspect includes a main body having a storage chamber; a compressor configured to compress a refrigerant; a condenser configured to condense the refrigerant compressed by the compressor; an evaporation expander configured to depressurize the refrigerant condensed by the condenser; a first evaporator configured to evaporate the refrigerant depressurized by the evaporation expander and thus to cool the storage chamber; a condensing expander installed between the condenser and the evaporation expander and configured to depressurize the refrigerant condensed by the condenser; and a subsidiary condenser installed between the condensing expander and the evaporation expander and configured to condense the refrigerant depressurized by the condensing expander.

Abstract: A heat pump cycle includes a compressor, a first interior heat exchanger, a separator that separates a refrigerant discharged from the compressor into a gas-phase refrigerant which does not include a lubricant and a remaining refrigerant, an exterior heat exchanger that performs heat exchange between the remaining refrigerant flowing out of the separator and an outside air, a second interior heat exchanger, a control valve, an accumulator, and a first bypass passage that bypasses the second interior heat exchanger and connects to an inlet side of the accumulator. The heat pump cycle heats an air flow in the first interior heat exchanger and controls the control valve to reduce the pressure of the refrigerant, in a state where the refrigerant circulates in a refrigerant circuit including the first bypass passage while accumulating the gas-phase refrigerant flowing out of the separator in the second interior heat exchanger.

Abstract: A dedicated outside air system comprising a combined variable refrigerant flow and variable air flow that provides ventilation in an energy efficient way or otherwise as desired.

Abstract: A drying and filtering device used for drying and filtering compressed air comprises a housing (10) having a cavity (11), an upper cover (20) disposed on the roof of the housing (10), a lower cover (30) having a drainage port (31) disposed at the bottom of the housing (10), and a cooling tube (40) disposed in the housing (10). An air inlet (21) and an air outlet (22) are provided at two sides of the upper cover (20). The cavity (11) being in communication with the air inlet (21), the air outlet (22), and the drainage port (31) respectively. The cooling tube (40) is disposed in the cavity (11) and extends from a position near the upper cover (20) downward to the lower cover (30). Compressed air enters the cavity (11) from the air inlet (21) on the upper cover (20), and contacts the cooling tube (40).

Abstract: Systems and methods for controlling a cooling circuit for a variable frequency drive (VFD) in an HVACR system are disclosed. The method includes determining, by a controller, an operating condition of a heat sink associated with the VFD. The controller determines whether a temperature of the heat sink is greater than or equal to a heat sink temperature threshold. The method further includes enabling a bypass flow control device in response to the heat sink temperature being greater than or equal to the heat sink temperature threshold.

Abstract: An air conditioning system according to the present invention changes a target supply temperature based on a magnitude relationship between an operating frequency of a first compressor and a first frequency at which an operating efficiency of the first compressor reaches a maximum, and a magnitude relationship between an operating frequency of a second compressor and a second frequency at which an operating efficiency of the second compressor reaches a maximum.

Abstract: A scroll compressor and an air conditioner including a scroll compressor are provided.

Abstract: A combined evaporator and condenser (1100) is manufactured from a number of stacked heat exchanger plates (980) provided with a pressed pattern of ridges and grooves for keeping the plates on a distance from one another for creating interplate flow channels (1180, 1200). The evaporator portion (1120, 1150) of the combined evaporator and condenser (1100) has a coolant outlet connectable to an expansion valve (R), and a connection between the condenser portion and the expansion valve (R) runs through the evaporator portion.

Abstract: An object is to provide a refrigeration cycle apparatus that does not cause unevenness of capacity among branch units and a failure in controlling a refrigerant circuit. At least one of branch units is a first branch unit having a minimum pressure loss in distribution of refrigerant in a high-pressure refrigerant pipe between a heat source unit and the branch units, and at least another one of the branch units is a second branch unit having a maximum pressure loss in distribution of refrigerant in the high-pressure refrigerant pipe between the heat source unit and the branch units. An opening degree of an expansion device is controlled in such a manner that a differential pressure between a refrigerant pressure detected by a high-pressure detecting device of the first branch unit and a refrigerant pressure detected by an intermediate-pressure detecting device is greater than or equal to a set value ?PHM.

Abstract: There is disclosed a vehicle air-conditioning device in which a heating qualification by gas injection can sufficiently be obtained. The vehicle air-conditioning device comprises a compressor 2 which compresses a refrigerant, an air flow passage 3 through which air to be supplied into a vehicle interior flows, a radiator 4 disposed in the air flow passage to let the refrigerant radiate heat, a heat absorber 9 disposed in the air flow passage to let the refrigerant absorb heat, an outdoor heat exchanger 7 disposed outside the vehicle interior to let the refrigerant radiate or absorb heat, and a controller. The controller executes a heating mode in which the refrigerant discharged from the compressor 2 radiates heat in the radiator 4 and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the outdoor heat exchanger 7.

Abstract: An integrated system includes a controller, a drive device, a fastening supporting member, and a fixing member. The controller has a controller connector. The drive device has a drive device connector that is connected to the controller connector so that the drive device is electrically coupled to the controller. Via the fastening supporting member, the controller and the drive device are maintained in an electrically coupled state in which the drive device connector is connected to the controller connector. Via the fixing member, the controller and the drive device are maintained in a mechanically coupled state in which the drive device is mechanically coupled to the controller.

Abstract: The present disclosure is drawn to electrocaloric devices, methods of making electrocaloric integrated circuits, and methods of thermally cycling integrated circuits. The electrocaloric device can include an electrocaloric material having a solid solution of two or more components of BNT, BKT, BZT, BMgT, or BNiT. The electrocaloric material can have an ergodic transition temperature within a range of 50 C to 300 C. The device can also include electrodes associated with the electrocaloric material, as well as an electrical source to add or reduce electrical field between the electrodes across the electrocaloric material to generate heating or cooling relative to the ergodic transition temperature of the electrocaloric material.

Abstract: An air-conditioning apparatus divides an outdoor heat exchanger to form parallel heat exchangers and supplies part of refrigerant from a compressor to the parallel heat exchangers alternately to perform defrosting, performs medium-pressure defrosting in which part of the refrigerant from the compressor is decompressed and supplied to a parallel heat exchanger to be subjected to defrosting, and the refrigerant after being used for defrosting is injected into the compressor. A first flow switching unit performs switching of a connection mode of ends of the parallel heat exchangers on compressor side, where the pressure changes among high pressure, medium pressure, and low pressure according to operation contents, to one of three modes: a mode with the ends connected to the compressor discharge side, a mode with the ends connected to the compressor suction side, and a mode with the ends connected to neither the discharge nor suction side.

Abstract: An air conditioner includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, a converting unit, a first injection module, and a second injection module. The first injection module injects a portion of refrigerant flowing from the indoor heat exchanger to the outdoor heat exchanger to the compressor in a heating operation and supercools refrigerant flowing from the outdoor heat exchanger to the indoor heat exchanger in a cooling operation. The second injection module injects a portion of refrigerant flowing from the indoor heat exchanger to the outdoor heat exchanger to the compressor in the heating operation and injects refrigerant flowing from the outdoor heat exchanger to the indoor heat exchanger to the compressor in the cooling operation.

Abstract: An oil separation device (14) for separating oil from a refrigerant-oil-mixture in a refrigeration cycle (1), the oil separation device (14) comprises a first refrigerant conduit having at least a first portion (16) with a first diameter (d1); a second refrigerant conduit arranged downstream of and connected to the first refrigerant conduit, the second refrigerant conduit having at least a second portion with a second diameter (d2) being smaller than the first diameter (d1); wherein the second portion (18) of the second refrigerant conduit having the second diameter (d2) extends into the first portion (16) of the first refrigerant conduit forming an oil separation pocket (32) between the outer diameter of the second portion (18) and the inner diameter of the first portion (16); and a suction line (20) having an inlet end (19), which opens into the oil separation pocket (32) and is configured to suck oil from the oil separation pocket (32).

Abstract: An evaporator system that includes: a first evaporator coil at a first evaporator temperature and pressure; a second evaporator coil at a second evaporator temperature and pressure that is less than the first evaporator temperature and pressure where the first evaporator and second evaporator are configured to be thermally disjointed; and a plurality of thermally conductive spaced apart evaporator fins having a plurality of spaced apart thermal break portions positioned between the first evaporator coil and the second evaporator coil that thermally disjoin the first evaporator and the second evaporator.

Abstract: A heat pump device is provided with: a first refrigerant guide-in unit that guides in the high temperature, high pressure refrigerant discharged by the compressor from outside the housing; a water refrigerant heat exchanger that can dissipate heat from the high temperature, high pressure refrigerant guided in from the first refrigerant guide-in unit into a cooling fluid; and a housing accommodating the water refrigerant heat exchanger. The heat pump device is further provided with a cooling fluid guide-in unit that can guide the cooling fluid from outside the housing into the water refrigerant heat exchanger, a cooling fluid guide-out unit that can guide the cooling fluid out of the water refrigerant heat exchanger to the outside of the housing, and a first refrigerant guide-out unit that guides the refrigerant that has passed through the water refrigerant heat exchanger to the outside of the housing.

Abstract: A refrigerator includes a compressor compressing a refrigerant, a condenser condensing the refrigerant compressed in the compressor, a refrigerant tube guiding a flow of the refrigerant condensed in the condenser, an expansion device decompressing the refrigerant condensed in the condenser, and an evaporator evaporating the refrigerant decompressed in the expansion device. The evaporator includes an evaporation tube through which the refrigerant decompressed in the expansion device flows, a coupling tube through a refrigerant heat-exchanged with the refrigerant of the evaporator flows, and a heat-exchange fin coupled to the evaporation tube and the coupling tube.

Abstract: A refrigeration apparatus includes a compressor, a heat source-side heat exchanger, a receiver, a utilization-side heat exchange, a receiver degassing pipe interconnecting an upper portion of the receiver and a suction side of the compressor, and a receiver liquid level detection pipe connected to the receiver. The receiver liquid level detection pipe detects whether or not liquid level in the receiver has reached a predetermined position on a lower side of a position where the receiver degassing pipe is connected. The receiver liquid level detection pipe merges with the receiver degassing pipe via a capillary tube. The receiver degassing pipe has a refrigerant heater to heat refrigerant flowing through the receiver degassing pipe. Whether or not the liquid level in the receiver has reached the predetermined position is detected using a temperature of refrigerant flowing though the receiver degassing pipe.

Abstract: Provided is a solar dehumidifying and cooling system including a solar hot water device that produces hot water by using solar heat and a dehumidifying and cooling device that performs cooling through heat exchange with the hot water that is supplied from the solar hot water device.

Abstract: Thermoelectric-enhanced, rack-level cooling of airflow entering an electronics rack is provided by a cooling apparatus, which includes: an air-to-liquid heat exchanger; a coolant loop coupled to the heat exchanger, the coolant loop including a first loop portion and a second loop portion, where the heat exchanger exhausts heated coolant to the first loop portion and receives cooled coolant from the second loop portion. The cooling apparatus further includes a heat rejection unit and a thermoelectric heat pump(s). The heat rejection unit is coupled to the coolant loop between the first and second loop portions, and provides partially-cooled coolant to the second loop portion. The thermoelectric heat pump is disposed with the first and second loop portions coupled to opposite sides to transfer heat from the partially-cooled coolant within the second loop portion to provide the cooled coolant before entering the air-to-liquid heat exchanger.

Abstract: A system and method for a CO2 refrigeration system includes a compressor, a heat exchanger, a liquid receiver, a first valve, and a valve controller. The heat exchanger operates as a gas cooler when the CO2 refrigeration system is in a transcritical mode and as a condenser when the CO2 refrigeration system is in the subcritical mode. The first valve controls a flow of refrigerant from the heat exchanger to the liquid receiver. The valve controller monitors an outdoor ambient temperature and a pressure of refrigerant exiting the heat exchanger, determines whether the CO2 refrigeration system is in the subcritical mode or in the transcritical mode, determines a pressure setpoint based on the monitored outdoor ambient temperature, and controls the first valve based on a comparison of the determined pressure setpoint and the monitored pressure when the CO2 refrigeration system is in the transcritical mode.

Abstract: Thermoelectric-enhanced, rack-level cooling of airflow entering an electronics rack is provided by a cooling apparatus, which includes: an air-to-liquid heat exchanger; a coolant loop coupled to the heat exchanger, the coolant loop including a first loop portion and a second loop portion, where the heat exchanger exhausts heated coolant to the first loop portion and receives cooled coolant from the second loop portion. The cooling apparatus further includes a heat rejection unit and a thermoelectric heat pump(s). The heat rejection unit is coupled to the coolant loop between the first and second loop portions, and provides partially-cooled coolant to the second loop portion. The thermoelectric heat pump is disposed with the first and second loop portions coupled to opposite sides to transfer heat from the partially-cooled coolant within the second loop portion to provide the cooled coolant before entering the air-to-liquid heat exchanger.

Abstract: A vehicular heat pump system utilizing intermediate gas recompression is provided. The heat pump system is for use in a vehicle having a battery and a passenger compartment. The heat pump system may include a heating circuit and a cooling circuit each including a compressor having a first inlet and a second inlet and a vapor-liquid separator configured to separate intermediate pressure refrigerant supplied by a first expansion device into refrigerant in a gaseous state flowing therethrough and refrigerant in a liquid state flowing therethrough. The vapor-liquid separator may be configured to selectively inject refrigerant in a gaseous state into the compressor at the second inlet to increase the mass flow rate of the refrigerant. This allows the heat pump system to operate effectively in cold ambient temperatures. A method of operating a heat pump system utilizing intermediate gas recompression is also provided.

Abstract: A heating and cooling system includes an evaporator, a compressor, and a condenser. A heat exchanger, which may be an outdoor heat exchanger, is configured to receive the refrigerant from the condenser, to selectively extract heat from or to add heat to the refrigerant, and to transfer the refrigerant to the evaporator. First control valving, disposed between the condenser and the heat exchanger, is configured to regulate flow of the refrigerant from the condenser to the heat exchanger in a first mode of operation. Second control valving, disposed between the condenser and the heat exchanger, is configured to regulate flow of the refrigerant from the heat exchanger to the evaporator in a second mode of operation. The system may be operated in a variety of modes by appropriate control of the valving and other system components.

Abstract: A refrigeration apparatus includes a high-temperature side circulation circuit, a low-temperature side circulation circuit, a cascade capacitor, and control means. The high-temperature side circulation circuit forms a refrigerant circuit in which a high-temperature side compressor, a high-temperature side condenser, a high-temperature side expansion device, and a high-temperature side evaporator are connected by a pipe. The refrigerant circuit allows a high-temperature side refrigerant to circulate therethrough. The high-temperature side refrigerant has a carbon-carbon double bond in its molecular structure. The high-temperature side compressor has a variable discharge capacity and is configured to discharge the high-temperature side refrigerant. The low-temperature side circulation circuit forms a refrigerant circuit in which a low-temperature side compressor, a low-temperature side condenser, a low-temperature side expansion device, and a low-temperature side evaporator are connected by a pipe.

Abstract: Disclosed is a method and device for a thermal energy storage liquid-suction heat exchanger (TES-LSHX) for air conditioning and refrigeration (AC/R) applications. The disclosed embodiments allow energy to be stored and aggregated over one period of time, and dispatched at a later period of time, to improve AC/R system efficiency during desired conditions. Not only are the benefits of LSHX stored and aggregated for later use, but when dispatched, the discharge rate can exceed the charge rate thereby further enhancing the benefit of demand reduction to utilities. The disclosed embodiments allow great flexibility and can be incorporated into OEM AC/R system designs, and/or bundled with condensing units or evaporator coils. These TES-LSHX systems can be retrofit with existing systems by installing the product at any point along the existing AC/R system's line set.

Abstract: A sensor module for a compressor having an electric motor connected to a power supply is provided. The sensor module includes an input that receives current measurements generated by a current sensor based on a current of the power supply. The sensor module also includes a processor. The processor is connected to the input, determines a maximum continuous current for the electric motor, and selectively compares the current measurements with a value equal to the maximum continuous current multiplied by a predetermined value. The maximum continuous current is set based on at least one of a type of refrigerant used by the compressor and actual refrigeration system conditions.

Abstract: An air conditioner includes a plurality of compressors, a condenser that condenses a refrigerant compressed in the plurality of the compressors, an expansion device that expands the refrigerant discharged from the condenser, and an evaporator that evaporates the refrigerant expanded in the expansion device. A first path diverges between the condenser and the evaporator to supply a portion of the refrigerant discharged from the condenser to at least one of the plurality of compressors. A second path diverges between the condenser and the evaporator to supply a portion of the refrigerant discharged from the condenser to a path between the plurality of compressors.

Abstract: Surged heat pump systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator during an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator. The temperature of the vapor phase refrigerant is raised in relation to the liquid phase with heat from the liquid by the phase separation, not by the introduction of energy from another source. The surged heat pump systems may operate in highest heat transfer efficiency mode and/or in one or more higher temperature modes.

Abstract: Provided is an air conditioner. The air conditioner includes a compressor, a condenser, an expansion device, an evaporator, and a supercooling device configured to supercool a refrigerant passing through the condenser. The supercooling device includes a supercooling main body in which the refrigerant passing through the condenser and a refrigerant to be injected into the compressor are introduced, a first passage disposed within the supercooling main body so that the refrigerant passing through the condenser flows in one direction, a second passage disposed on a side of the first passage so that the refrigerant passing through the condenser flows in the other direction, and a third passage in which the refrigerant to be injected into the compressor flows, the third passage being heat-exchanged with at least one of the first and second passages.

Abstract: Apparatus and method are provided for cooling an electronic component. The apparatus includes a coolant-cooled structure in thermal communication with the component(s) to be cooled, and a coolant-to-refrigerant heat exchanger coupled in fluid communication with the coolant-cooled structure via a coolant loop to receive coolant from and supply coolant to the coolant-cooled structure. The apparatus further includes a refrigerant loop coupled in fluid communication with the coolant-to-refrigerant heat exchanger, and the heat exchanger cools coolant passing therethrough by dissipating heat from the coolant in the coolant loop to refrigerant in the refrigerant loop. A controllable coolant heater is associated with the coolant loop for providing an adjustable heat load on the coolant in the coolant loop to ensure at least a minimum heat load is dissipated from the coolant to the refrigerant passing through the heat exchanger.

Abstract: A method, and or process, of achieving a double-wall heat recovery refrigeration condenser system, capable, within a single compound condenser, of energy transfer to a heat recovery heat sink, or multiple heat recovery heat sinks, as well as a heat rejection sink, in, any combination of, or all of, the individual heat sinks, in any ratio, requiring no change in the amount of active working fluid, typically a refrigerant, charge requirement. The compound condenser thus eliminates the need for working fluid storage, and controls for controlling said storage, found in typical multi heat sink condenser systems, and also, thus eliminates the complexity associated with said controls and storage. This manner of condenser is used as part of a vapor compression refrigeration system to typically, but not exclusively, reclaim heat from a refrigeration process, for the purpose of heating water.

Abstract: Heating equipment, including a first heat exchanger, a compressor, a second heat exchanger, and a first expansion valve that decompresses a refrigerant flowing from the second heat exchanger to the first heat exchanger, are connected so as to circulate the refrigerant. A third heat exchanger provides heat of the refrigerant flowing from the second heat exchanger to the first heat exchanger to the refrigerant flowing from the first heat exchanger toward the compressor. An injection circuit merges part of the refrigerant flowing from the second heat exchanger to the first heat exchanger with the refrigerant that is sucked by the compressor. An injection expansion valve is installed in the injection circuit and decompresses the refrigerant flowing in the injection circuit. A fourth heat exchanger is installed in the injection circuit to supply heat of the refrigerant flowing from the second heat exchanger toward the first heat exchanger to the refrigerant flowing in the injection circuit.