Abstract: Disclosed in a filter for filtering a working fluid comprising a canister having an inlet and an outlet; a first partially perforated generally conical member positioned in said canister; a second generally conical member positioned inside said first partially perforated generally conical member, whereby the working fluid upon entering the inlet is caused to spin inside the canister, to pass through the perforated portion of the first generally conical member, to enter an inlet to the second generally conical member, to spin within the second conical member and to pass through the outlet.

Abstract: An air conditioner control method may entail measuring an evaporator first temperature at an exit side of the evaporator, maintaining the evaporator first temperature, measuring a length of time that the evaporator maintains the evaporator first temperature, providing a user-set evaporator target temperature; and reducing a rate of refrigerant compressed by a compressor based on a relationship between the length of time that the evaporator maintains the evaporator first temperature and the evaporator target temperature. Furthermore, an air conditioner control method utilizing a condenser and a cold storage unit may entail turning off an air conditioner compressor, maintaining operation of a condenser cooling fan, closing a thermostatic expansion valve, opening a bleed port to bypass the thermostatic expansion valve, and receiving a liquid refrigerant into the cold storage unit from the condenser after the refrigerant passes through a thermostatic expansion valve bleed port and the evaporator.

Abstract: A chilled water distribution system includes a chilled water loop in fluid communication with a plurality of buildings and also in fluid communication with a plurality of chiller stations. A monitoring and control system communicates with one of the chiller stations, hereinafter referred to as a. “controlled” chiller station because it is configured with one or more variable frequency drives that are controlled by the monitoring and control system to modulate the speed of at least one chiller station component such as, but not limited to, a pump or a fan. By way of this modulation process, a differential pressure of the chilled water loop may be maintained in a “sweet spot” so as to optimize chiller station output while minimizing chiller station energy consumption.

Abstract: A refrigerator using a non-azeotropic refrigerant mixture (NARM) and a control method thereof. The refrigerator reduces the rotational speed of a freezing chamber fan or stopping the freezing chamber fan for a designated time, and/or increasing the rotational speed of a compressor in a simultaneous freezing/refrigerating operation mode of an NARM cycle as compared to a freezing operation mode, and may thus decrease evaporation latent heat of a refrigerant consumed by a freezing chamber evaporator and relatively increase evaporation latent heat of the refrigerant usable in a refrigerating chamber evaporator without increase in a charging amount of the refrigerant, thereby preventing over-charging due to increase in the charging amount of the refrigerant and reducing cycling loss.

Abstract: A system supplies a fluid to an evaporator of a refrigeration unit and has first and second lines connected to a fluid inlet of the evaporator. The system has an expansion valve with a continuously modifiable first flow cross section, disposed in the first line, the continuously modifiable first flow cross section setting a first mass flow through the first line. A shut-off device is disposed in the second line and switchable discretely between an open position and a closed position. A throttle with a constant second flow cross section is disposed in the second line. A control unit continuously modifies the first flow cross section of the expansion valve and controls the shut-off device as a function of the first flow cross section.

Abstract: A system (170) has a compressor (22). A heat rejection heat exchanger (30) is coupled to the compressor to receive refrigerant compressed by the compressor. A non - controlled ejector (38) has a primary inlet coupled to the heat rejection exchanger to receive refrigerant, a secondary inlet, and an outlet. The system includes means (172, e.g., a nozzle) for causing a supercritical-to-subcritical transition upstream of the ejector.

Abstract: Embodiments of the invention include a sealed compartment and a door disposed on a side of the sealed compartment, and a cooler for cooling an interior of the sealed compartment. At least one light emitting diode configured to emit light having a peak wavelength in the ultraviolet range is positioned to emit ultraviolet light in the sealed compartment.

Abstract: A method is provided for producing cooling in a chiller having an evaporator wherein a refrigerant composition is evaporated to cool a heat transfer medium. The method comprises evaporating a refrigerant composition comprising HFC-245eb and optionally Z—HFO-1336mzz in the evaporator. Additionally, a composition is provided comprising: (1) a refrigerant composition consisting essentially of HFC-245eb and Z—HFO-1336mzz; (2) a lubricant suitable for use in a chiller; wherein the Z—HFO-1336mzz in the refrigerant composition is at least about 41 weight percent. Also, a chiller apparatus is provided comprising an evaporator, a compressor, a condenser and a pressure reduction device, all of which are in fluid communication in the order listed and through which a refrigerant flows from one component to the next in a repeating cycle.

Abstract: Cooling of downhole components is effected using an expendable refrigerant, such as water. Refrigerant, in thermal communication with a component to be cooled, is evaporated in an evaporator. Vapor is removed from the evaporator and released into a borehole, in order to cool the component. A pump may be used to remove the vapor from the evaporator and force the vapor into the borehole.

Abstract: A cooling system has a tandem compressor, a condenser, an electronic expansion valve and an evaporator arranged in a direct expansion cooling circuit. The tandem compressor includes a variable capacity compressor and a fixed capacity compressor. A controller controls the electronic expansion valve and selects which of a plurality of superheat control modes to use in operating the electronic expansion valve based on control parameters and a current operating status of each of the variable capacity compressor and fixed capacity compressor of the tandem compressor.

Abstract: An HVAC system includes an electronic expansion valve, a motor, an obturator connected to the motor, the obturator being selectively movable in response to operation of the motor, a removable seat selectively received within a complementary portion of the electronic expansion valve, the removable seat being selectively movable in response to operation of the motor.

Abstract: Method and apparatus for refrigerant flow control are disclosed. One exemplary apparatus for controlling refrigerant flow comprises: at least one refrigerant inlet; at least one refrigerant outlet; a first valve coupled between the refrigerant inlet and the refrigerant outlet; and a second valve coupled between the refrigerant inlet and the refrigerant outlet; wherein at least one of the first valve and the second valve is rotatable, and the first valve and the second valve comprise one or more cooperative openings to allow refrigerant to pass from the refrigerant inlet, through the first and second valves, and out of the refrigerant outlet.

Abstract: A variable flow refrigerant system having a compressor and one or a plurality of evaporators. The suction at one or the plurality of evaporators for the input to the compressor is monitored and generally corresponds to the minimum pressure of the refrigerant. The pressure is associated with a temperature and is controlled to always be above the dew point temperature of the room.

Abstract: An environmentally-controlled structure for a cold chain. The structure includes a sensor, an identification reader, an environment implementer, and a controller. The sensor senses a parameter indicative of an environmental condition in the environmentally-controlled structure. The identification reader is positioned relative to the environmentally-controlled structure and reads information about the goods from an identification device associated with the goods. The environment implementer modifies the environmental condition inside the environmentally-controlled structure. The controller receives the indication of the environmental condition inside the environmental control structure from the sensor, receives the information about the goods from the identification reader, and controls the environment implementer to maintain a desired environment inside the environmentally-controlled structure based on the information about the goods and the indication of the environmental condition.

Abstract: A buck/boost rectifier. The rectifier is connectable to an alternating current power source and includes an upper bus, a lower bus, an upper rectifier, a lower rectifier, a pulse-width-modulation (PWM) controller, a phase-angle (PA) controller, and a capacitor. The upper rectifier is coupled to the upper bus, and the lower rectifier is coupled in a series-type relationship with the upper rectifier and to the lower bus. The PWM controller is coupled to the lower rectifier and is configured to boost a direct current (DC) voltage output by the rectifier. The PA controller is coupled to the lower rectifier and is configured to buck the DC voltage output by the rectifier. The capacitor is coupled between the upper bus and the lower bus.

Abstract: An integrated power and refrigeration system is disclosed that includes a first subsystem configured to provide cooling air using a reverse-Brayton cycle using compressed air and a second subsystem configured to provide power by accepting a first portion of the compressed air from the first subsystem, heating the accepted first portion of the compressed air to form hot compressed air, and using the hot compressed air to drive a turbine that is coupled to a power generator.

Abstract: A thermal management system and method of use are provided, the system including a heat exchanger, a refrigeration system, a coolant loop thermally coupled to the heat exchanger, and a by-pass valve that regulates the amount of coolant within the coolant loop that either passes through the heat exchanger or is diverted away from the heat exchanger. The coolant loop is thermally coupled to the battery pack of an electric vehicle.

Abstract: Disclosed herein is a refrigerator capable of varying a storage condition for food in accordance with a state of the food, thereby storing the food in a fresher state for a prolonged period of time. The refrigerator includes an indicating device to measure a state of food. The indicating device is provided to be portable, separately from a refrigerator body. The indicating device includes a measurement terminal, which come into contact with food, only when contact is needed. The refrigerator also includes an input unit to receive data about a state of food, a determination unit to determine a storage condition for the food, based on the input food state data, and a controller to control driving of the cooling device, based on the determined food storage condition. The indicating device includes a measurement unit to obtain food state data, and a display to display the food state data.

Abstract: A system for air conditioning an aircraft cabin is provided. The system includes at least one cooling circuit, at least one compressed-air line and at least one compressor for compressing air. The cooling circuit is connected to the compressor by way of the compressed-air line, and the compressor is drivable independently of bleed air. This makes it possible to tap engine bleed air at a lower pressure than usual, because an arising difference from a required operating pressure can be compensated for by the compressor. The air conditioning system can thus be operated by means of a hybrid energy supply.

Abstract: A screw type wind-chilling water chiller unit including a chassis and a compressor, a shell and tube heat exchanger, a fin-type heat exchanger and an expansion valve, and a control cubicle disposed on the chassis. The expansion valve is disposed between the compressor and the shell and tube heat exchanger. The shell and tube heat exchanger is provided with three tubes, a first tube connected to the compressor, a second tube is connected to a liquid storage can via the expansion valve and a transmission tube. A heat exchange tube in the fin-type heat exchanger is connected to a collection tube, and the liquid storage can is connected to the third tube, and a handle of a cubicle door of a control cubicle is connected to a power switch inside a power supply box, so as to improve the performance, operation stability, equipment safety of the unit.

Abstract: Acid gas is removed from a high pressure feed gas that contains significant quantities of CO2 and H2S. In especially preferred configurations and methods, feed gas is contacted in an absorber with a lean and an ultra-lean solvent that are formed by flashing rich solvent and stripping a portion of the lean solvent, respectively. Most preferably, the flash vapors and the stripping overhead vapors are recycled to the feed gas/absorber, and the treated feed gas has a CO2 concentration of less than 2 mol % and a H2S concentration of less than 10 ppmv, and more typically less than 4 ppmv.

Abstract: A method of operating a refrigeration system for a refrigerated mobile cargo container includes sensing a temperature outside of the refrigerated mobile cargo container, detecting a position of a door on the refrigerated mobile cargo container, and activating the refrigeration system if the door is open and the temperature outside of the refrigerated mobile cargo container is less than a predetermined value.

Abstract: Systems and methods for low voltage detection for a heat pump water heater are disclosed. A current sensor can be used to monitor current supplied to a inductive load, such as a compressor or evaporator fan, of the heat pump water heater. The current sensor can be coupled to a controller which receives and processes information from the current sensor to determine whether a low voltage condition of the heat pump water heater has occurred. An alert can be provided to an installer/user of the heat pump water heater that a low voltage condition has occurred. The controller can also disconnect the heat pump water heater from the power source to prevent damage to the heat pump water heater.

Abstract: A cooling cube assembly for cooling a liquid contained within a beverage container. The cooling cube assembly includes a cooling element containing a cooling solution, and an insertion and extraction filament attached to the cooling element for inserting and extracting the cooling element from the liquid within the beverage. The insertion and extraction filament is an elongated flexible filament connected at a first end to the cooling element and at a second end to a tag for inserting and extracting the cooling element from the liquid within the beverage. The cooling element is inserted into the liquid to be cooled while the tag remains outside of the liquid. The cooling element is extracted from the liquid by pulling on the elongated filament with the tag after the liquid is cooled to a desired temperature.

Abstract: A system for improving the thermal efficiency of a thermal control loop in which refrigerant after compression and condensation is applied to an evaporator employs a subsidiary counter-current heat exchange intercepting refrigerant flow to maintain the quality of the refrigerant by exchanging thermal energy between the input flow and the output flow from the evaporator. The same principle is effective, with particular advantage when small connections have to be made, in systems using mixed phase media and using the concept of direct energy transfer with saturated fluid.

Abstract: A multi-type air conditioner includes an outdoor unit disposed at an exterior space, a plurality of indoor units disposed at interior spaces, and a mode conversion unit connected to the outdoor unit and the plurality of indoor units through refrigerant pipes to circulate a refrigerant between the outdoor unit and the plurality of indoor units. The mode conversion unit includes a plurality of supercooling units which are configured to supercool a refrigerant before the refrigerant is introduced to the plurality of indoor units, using a supercooling refrigerant pipe which sequentially passes through at least one of the plurality of supercooling units, so that a refrigerant after having passed through the supercooling unit, is in a state of pure gas while ensuring a desired supercooling degree that is suitable for each indoor unit.

Abstract: A cryopump is provided with: a refrigerator that generates a cold state by a heat cycle in which an operating gas inhaled inside is expanded and discharged; a heat shield thermally connected to the refrigerator so as to be cooled to a target temperature; and a control unit that determines a command value for a heat cycle frequency such that a temperature of the heat shield follows the target temperature, and provides the command value to the refrigerator. The control unit estimates whether the refrigerator outputs a refrigerating capacity corresponding to the command value for the frequency based on a flow rate of the operating gas.

Abstract: A vehicle includes an air conditioning system for conditioning intake air flowing into a vehicle interior. The air conditioning system has a primary heat exchanger in thermal communication with a drive unit via a coolant circuit, a compressor, and a secondary heat exchanger which is disposed jointly with the compressor in a refrigerant circuit. The secondary heat exchanger operates as a condenser in a heating mode of the air conditioning system and jointly with the primary heat exchanger gives off heat to the intake air. A control device controls operation of the refrigerant circuit in response to an input by a user. The control device includes an evaluation unit to carry out a comparison between a desired heat supply commensurate with the input by the user and a determined actual heat supply, and generates an output signal for operating the compressor in response to the comparison.

Abstract: A refrigeration cycle apparatus achieves efficient operation by constantly recovering power in a wide operating range. The refrigeration cycle apparatus regulates a pressure of a high pressure side by changing either one or both of an opening degree of the intermediate-pressure bypass valve and an opening degree of the pre-expansion valve on the basis of a density ratio that is obtained from an inflow refrigerant density of the expander and an inflow refrigerant density of the sub-compressor in an actual operating state and a design volume ratio that has been expected at the time of design and that is obtained from a stroke volume of the sub-compressor, a stroke volume of the expander, and a ratio of a flow rate of the refrigerant flowing to the sub-compressor.

Abstract: The invention provides a heat transfer composition comprising R-1234ze(E), R-32 and 1,1,1,2-tetrafluoroethane (R-134a).

Abstract: An appliance and method for enabling a consumer to easily override a low energy mode of an appliance to enable a feature or function of the appliance not typically available in the low energy mode. When an appliance or device is in an energy savings mode, multiple consumer requests for a given feature or function within a prescribed period of time can operate to override the energy savings mode and permit operation of the feature and/or function.

Abstract: Disclosed is a material capable of adsorbing carbon dioxide which is obtainable by compressing a mixture of a carbonious material selected from fossil carbons and/or graphite and a solid binder consisting of a disaccharide or glucose in powder form.

Abstract: An HVAC system includes an electronic expansion valve having a movable obturator with a truncated tip and a port configured to selectively receive the truncated tip. An electronically controlled expansion valve includes a movable obturator with a truncated tip and a port configured to selectively receive the truncated tip. A method of operating a heat pump HVAC system includes providing an electronically controlled expansion valve comprising an obturator having a truncated tip and flowing refrigerant through the valve.

Abstract: A system for monitoring a mobile refrigerant system including one or more system components is provided. The system includes a global positioning system, a performance monitor, and a processor. The global positioning system includes a receiver that provides a locator signal. The performance monitor provides a monitor signal indicative of operational performance of at least one of the system components of the refrigerant system. The processor is adapted to receive and combine the locator signal and the monitor signal, and produce a combined locator and monitor signal output.

Abstract: Method for controlling a device that includes at least a compressor installation and/or a drying device and a heat recovery system. The heat recovery system absorbs heat from the compressor installation, and the device further includes a controller and device for determining one or more system parameters. The controller controls both the compressor installation and/or the drying device and the heat recovery system on the basis of the system parameters, so that the overall efficiency of the device is optimised.

Abstract: An air conditioner includes: a compressor for compressing a refrigerant; an expansion valve for adjusting the flow of the refrigerant; a first temperature sensor for detecting a discharge temperature of the compressor; and a second temperature sensor for detecting a temperature of a condenser. A discharge temperature difference is calculated that is a difference between the discharge temperature detected by the first temperature sensor and the temperature of an outdoor heat exchanger or an indoor heat exchanger functioning as the condenser that is detected by the second temperature sensor. The opening of the expansion valve is set based on the calculated discharge temperature difference and a target discharge temperature difference that is set so that a target degree of superheat is obtained.

Abstract: Systems and methods are provided for controlling an expansion valve of a climate control system evaporator coil. An evaporator coil temperature sensor senses temperature of refrigerant within the evaporator coil near the evaporator coil outlet. A controller determines a control set point based on the refrigerant temperature near the evaporator outlet. The control set point is used to determine a valve opening area to regulate refrigerant flow into the evaporator coil such that temperature of refrigerant at the evaporator coil outlet is within a temperature band having a lower bound within a predetermined range above the liquid-to-vapor transition temperature.

Abstract: A cooling apparatus includes a first power supply, a second power supply, and a power switching control unit configured to switch a power supply from the first power supply to the second power supply near the time when the temperature of a compartment starts decreasing.

Abstract: Cooling via acceleration of a compressible fluid is disclosed. The fluid is accelerated by a rotatable body to a velocity that may be equal to or greater than the speed of sound in the fluid. No conventional mechanical pump is required to accelerate the fluid. A phase change of the fluid may be utilized to transfer heat from an element to be cooled.

Abstract: An expansion valve assembly includes a housing that defines a passage through which a fluid flows. The assembly also includes a diaphragm that deflects according to a characteristic of the fluid and valve member that is operably coupled to the diaphragm to move within the passage between a first position and a second position due to deflection of the diaphragm to regulate flow of the fluid through the passage. A stroke is defined by a distance between the first and second positions of the valve member. Moreover, the assembly includes a stroke measuring device having a first member and a second member. The first member is operably coupled to the valve member to move relative to the second member due to movement of the valve member. The stroke measuring device is operable to detect the amount of relative movement of the first and second members to detect the stroke.

Abstract: Some embodiments described herein relate to ionic liquids comprising an anion of a heteraromatic compound such as optionally substituted pyrrolide, optionally substituted pyrazolide, optionally substituted indolide, optionally substituted phospholide, or optionally substituted imidazolide. Methods and devices for gas separation or gas absorption related to these ionic liquids are also described herein.

Abstract: A fluid spray device system (1) that maintains a resultant fluid discharge, or a material onto which the resultant fluid is discharged, within a predetermined range of a set-point temperature by regulating the flow rate of a throttling gas using a proportional valve (22). The resultant fluid has throttling gas and cryogenic fluid components. Both the throttling gas and cryogenic fluid are preferably supplied from a single tank (11) and the cryogenic fluid supply is pressure-regulated and includes a triaxial delivery hose (33) having a return line with a back-pressure regulator (54).

Abstract: A system and method include receiving a temperature signal from a temperature sensor, controlling operation of an air conditioner condenser, and controlling an electric vehicle charger to operate to charge an electric vehicle battery only when the air conditioner condenser is not running.

Abstract: Methods, apparatuses, and computer program products are provided for monitoring functionality of a refrigeration system. A method may include periodically exercising a refrigeration system to test the refrigeration system. The method may further include monitoring operation of the exercised refrigeration system. The method may additionally include determining, based at least in part on the monitoring, whether the exercised refrigeration system is malfunctioning. The method may also include causing a notification to be provided in an instance in which it is determined that the exercised refrigeration system is malfunctioning. Corresponding apparatuses and computer program products are also provided.

Abstract: A heating, ventilation, air conditioning, and refrigeration system is includes one or more variable frequency drives (VFD) controlled by one or more VFD controller, which are configured to provide three-phase power to one or more three-phase AC motors and single-phase power to one or more single-phase AC motors. The system also includes a power source controller configured to select from a plurality of power sources based on availability of one or more power sources and time so as to maximize the economic efficiency of operating the system.

Abstract: Disclosed herein is an air conditioning or refrigeration apparatus, and in particular, a chiller apparatus containing a composition comprising 1,1,1,4,4,4-hexafluoro-2-butene and 1,2-dichloroethylene, wherein the 1,1,1,4,4,4-hexafluoro-2-butene is cis isomer or primarily cis isomer and wherein the 1,2-dichloroethylene is trans isomer or primarily trans isomer. These chillers may be flooded evaporators or direct expansion evaporators, which utilize centrifugal compressors. Also disclosed herein are methods for producing cooling comprising evaporating a composition comprising cis-1,1,1,4,4,4-hexafluoro-2-butene and trans-1,2-dichloroethylene in the vicinity of a body to be cooled. Also disclosed herein are compositions comprising cis-1,1,1,4,4,4-hexafluoro-2-butene and trans-1,2-dichloroethylene, wherein the cis-1,1,1,4,4,4-hexafluoro-2-butene is present at 50 to about 60 weight percent.

Abstract: A mobile environment-controlled unit having a structure, a compartment supported by the structure, and an environmental-control system in environmental communication with the compartment. The environmental-control system is configured to control an environmental parameter of the compartment. The environmental-control system includes an internal combustion engine, having a starter, powering the environmental-control system; a battery powering the starter; and a controller. The controller monitors battery health status, predicts battery failure, and communicates the predicted battery failure. Also, described is a method of operating the mobile environment-controlled unit and a controller for controlling the mobile environment-controlled unit.

Abstract: Disclosed herein is a chiller apparatus containing refrigerant characterized by said refrigerant being HFO-1336mzz that is trans isomer or primarily trans isomer. These chillers may be flooded evaporators or direct expansion evaporators, which utilize either centrifugal or screw compressors. Also disclosed herein are methods for producing cooling comprising evaporating trans-HFO-1336mzz in an evaporator in the vicinity of a body to be cooled, thereby producing cooling. Also disclosed herein is a method for replacing HFC-236fa or CFC-114 refrigerant in a chiller apparatus, said method comprising providing HFO-1336mzz to said chiller apparatus in place of the replaced refrigerant; wherein said HFO-1336mzz is trans isomer or primarily trans isomer.

Abstract: An intellectual refrigerator combining with a portable electric device is present. The refrigerator has an image unit, a wireless transmitting unit and a micro control unit (MCU) therein. The image unit is used to monitor status or fetch image in a case of the refrigerator. The MCU electrically connects to the image unit and the wireless transmitting unit. The refrigerator further includes a connecting socket arranged on an outer surface of the case, and the connecting socket includes a first transmitting interface electrically connected to the MCU. When the electric device is plugged in the connecting socket, a connection is established by the MCU of the refrigerator with the electric device physically via the first connecting interface. When the electric device is removed from the connection socket, the connection is automatically turned to establish by the MCU with the electric device wirelessly via the wireless transmitting unit.

Abstract: An exemplary embodiment of the present invention provides an air conditioning apparatus including: an indoor unit with a heat exchanger; and a remote controller for inputting an operation condition of the indoor, wherein the remote controller includes a sensor sensing a moving state of the remote controller; a control unit determining the operation condition of the indoor unit based on a result sensed by the sensor; and a signal transmitting and receiving unit transmitting and receiving a signal to and from the indoor unit, and the indoor unit includes a blowing unit; a wind direction control unit controlling a discharge direction of air discharged from the blowing unit; a signal transmitting and receiving unit transmitting and receiving a signal to and from the remote controller; and a control unit controlling the driving of the blowing unit and/or the wind direction control unit in accordance with the operation condition received from the remote controller.