Abstract: A cooling system for electronic equipment includes an evaporator cooling the electronic equipment, a blower making air heated by the electronic equipment flow into the evaporator, and a condenser condensing a refrigerant to be supplied to the evaporator and also includes a refrigerant liquid pipe guiding a liquefied refrigerant from the condenser to a lower part of the evaporator, a refrigerant gas pipe guiding the refrigerant which evaporates by cooling the electronic equipment from an upper part of the evaporator to the condenser, a refrigerant flow rate control valve controlling a flow rate of the refrigerant flowing into the evaporator, a temperature sensor detecting a temperature of air obtained after passing through the evaporator, and a controller for control valve controlling the control valve on the basis of a detection value of the temperature sensor.

Abstract: Disclosed is an ice making apparatus and a refrigerator having the same. The refrigerator includes an ice making tray in which ice cubes are made, an ejector to discharge the ice cubes from the ice making tray, an ice bin to store the ice cubes discharged by the ejector, an auger to move the ice cubes in the ice bin, a first drive unit to provide the ejector with rotational force, a second drive unit to provide the auger with rotational force, an emitter to output optical signals so as to sense whether or not the ice cubes in the ice bin are at a full ice level, and a receiver to receive the optical signals output from the emitter, wherein any one of the emitter and the receiver is installed at the first drive unit, and the other one is installed at the second drive unit.

Abstract: The present invention is a hand held gauge for use with refrigeration systems. The gauge includes a service port connector, a display screen, and user interfacing buttons. The gauge also includes electronic storage of the pressure-to-saturation temperature data for different refrigerants. The gauge allows for the measuring of temperature and pressure of refrigeration systems. After a user inputs a refrigerant type, the gauge uses the pressure and the saturation data to determine the saturation temperature. The saturation temperature is compared to the measured temperature to get the superheat or subcooling. These results may all be displayed on the display screen.

Abstract: A cooling system for use in cooling an interior volume. The cooling system includes a first cooling assembly that is positioned within a housing that defines the interior volume. The first cooling assembly facilitates cooling the interior volume of the housing. A second cooling assembly is positioned external to the housing in flow communication with the first cooling assembly. The second cooling assembly is configured to channel a cooling fluid to the first cooling assembly. A control system is coupled to the first and second cooling assemblies. The control system is configured to channel cooling fluid from the second cooling assembly to the first cooling assembly when a temperature of air external to the housing is less than a temperature of air inside the housing, to facilitate reducing the air temperature inside the housing.

Abstract: Disclosed is a monitoring and control system for an air source heat pump apparatus having a controller to control at least one operation of the heat pump apparatus, a temperature sensor to detect the temperature in a specified area at, near, and/or around the controller, and an operable component, the system including a control program to: determine the temperature based on the detected temperature of the temperature sensor; determine whether a first condition exists, the first condition including a determination that the controller is powered, but the operable component is not operating; determine whether a second condition exists, the second condition including a determination that the controller is powered, and the operable component is operating; and based at least partially on determinations (a)-(c), determine the ambient temperature at or around the heat pump apparatus.

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: A device for displaying the temperature of a refrigerator, having at least one temperature sensor (7) situated in the cooled interior (2) of the refrigerator (1), and having a temperature display for displaying the temperature measured by the temperature sensor (7), characterized in that the temperature display is formed by at least one refrigerator light (10) which has various colors, and which displays a different color depending on the measured temperature.

Abstract: A cryostat has a tank for accommodation of a coolant and at least one superconducting magnet coil to generate a magnetic field. The tank has on a top side at least one tower pipe for filling the coolant and/or for venting vaporized coolant. In order to immediately indicate if and when sealing of filling pipes and discharging pipes with (for example) ice has occurred, a pressure sensor is connected via a pressure sensor pipe with the inside of the tank.

Abstract: An automated control device for monitoring the position angle of an absorption type cooling system or refrigerator that circulates a refrigerant, an absorbent, and a diffusion agent within a conduit system includes a housing, a controller with a processor within the housing, a sensor in communication with the controller for measuring the angle of inclination of the refrigerator, and a stress counter connected to the controller for counting increments of stress induced into the cooling system. The tilt monitoring control method prevents system stress, which in turn prevents personal and property damage due to hydrogen gas leaks, fires and explosions.

Abstract: The present invention generally relates to heat pumps that utilize at least one solar receiver operating with the same working fluids. In one embodiment, the present invention relates to a hybrid solar heat pump comprised of at least one microchannel heat exchanger with integral solar absorber, at least one compression device as the heat pump for concurrent compression to a higher pressure and mass flow regulator of the working fluid, and at least one working fluid accumulator with the entire system operating with the same working fluid.

Abstract: An Air conditioning and potable water generating system in which a cooling element condenses water from atmospheric air is operable two switch between an air conditioning mode, in which cooled atmospheric air from which water has been extracted is supplied to a building's interior environment, and a water generating mode, in which communication of such supply air into the building interior is closed off. The system can thus be operated to collect water regardless of whether cooling of the building interior is required at a particular point in time. Use of the same cooling element in each mode provides and use of return air from the building to mix with incoming fresh air and cool the heat dissipating element of the cooling system make for efficient operation. Controls of the system are operable to change a mixture ratio of the fresh atmospheric air and circulating return air.

Abstract: An ice making device may include an ice tray, a water-supply part for supplying water to the ice tray, an electrostatic capacity sensor having two or more electrodes attached to the ice tray, a water quantity detecting section for detecting a water quantity in the ice tray on a basis of variation of an electrostatic capacity between the electrodes of the electrostatic capacity sensor, and an ice frozen detecting section for detecting water supplied to the ice tray having been frozen on the basis of the variation of the electrostatic capacity between the electrodes of the electrostatic capacity sensor. A control unit for the ice making device controls the water-supply part, an ice tray drive part and an ice detecting part on the basis of variation of the electrostatic capacity between the electrodes of the electrostatic capacity sensor.

Abstract: An air-conditioning apparatus with a manual dehumidifying function and a method for operating the same are disclosed. The air-conditioning apparatus is applied to an equipment room for air conditioning and dehumidifying the equipment room. The method of operating the air-conditioning apparatus includes the following steps: First, a temperature-sensing unit and a humidity-sensing unit are used to sense an ambient temperature and an ambient relative humidity in the equipment room, respectively. Afterward, a display unit is used to display the sensed ambient temperature and the sensed ambient relative humidity. Afterward, the air-conditioning apparatus is judged by a control unit to be manually controlled to execute the dehumidifying function. Afterward, the control unit of the air-conditioning apparatus is used to provide a variable air control and a variable water control for dehumidifying the equipment room.

Abstract: An HVAC system for conditioning air of an associated room includes one or more power consuming features/functions including at least one temperature controlling element for one of heating and cooling air. A controller is operatively connected to the one or more power consuming features/functions. The controller is configured to receive and process a signal indicative of a utility state. The controller operates the HVAC system in one of a plurality or operating modes, including at least a normal operating mode and an energy savings mode in response to the received signal. The controller is configured to at least one of selectively adjust and deactivate at least one of the one or more power consuming features/functions to reduce power consumption of the HVAC system in the energy savings mode.

Abstract: Provided is an air conditioning apparatus that is capable of suppressing increases in volume and cost of the apparatus and performing more suitable overheating protection. An electric compressor is an inverter-integrated electric compressor integrally including a compressor, an electric motor that drives the compressor, and an inverter including a temperature sensor that detects the temperature in the vicinity of a semiconductor switching device, wherein a controller estimates a discharge temperature of the compressor on the basis of a correlation of respective pressure loading characteristics for the detected temperature of the inverter, for the rotational speed of the compressor, and for the motive force of the compressor in a refrigerating cycle.

Abstract: An air conditioner equipped with a compressor, an indoor heat exchanger and an outdoor heat exchanger includes: an inverter circuit that drives a motor of the compressor; an inverter-power detecting unit that detects power of the inverter circuit; a PWM-signal generating unit that inverter-current detecting unit generates PWM signals for controlling the inverter circuit; a voltage-command-value generating unit that outputs voltage command values to the PWM-signal generating unit; and an accumulation detecting unit that detects accumulation of a liquid refrigerant within the compressor and outputs a detection result to the voltage-command-value generating unit, wherein when accumulation of a liquid refrigerant within the compressor is detected, the voltage-command-value generating unit outputs the voltage command value so that power of the inverter circuit has a predetermined power value.

Abstract: The present invention particularly relates to a decrease in a standby power in an outdoor side unit, in an air conditioner comprising an indoor side unit and the outdoor side unit. The air conditioner includes a current detector which detects an alternating current flowing through a power line connecting the indoor side unit to the outdoor side unit, and a switch which performs a circuit communicating operation in a case where a current value detected by this current detector exceeds a predetermined standard value, and the air conditioner has a constitution in which via this switch, an operation of an outdoor side control circuit is started, and with the driving of a motor of the indoor side unit, the outdoor side control circuit is operated.

Abstract: A controller (10) includes subtracters (101, 105), a command value corrector (103), and a control block (102). The subtracter (101) obtains a deviation (?v0) of an output voltage (v0) applied from a switching power-supply circuit (61) to a second load (Cdc+Load) with respect to its command value (v0*). The control block (102) performs PI control on the basis of the deviation (?v0) to generate a command value (idc*) for a current (idc) flowing in a coil (Ldc). The command value corrector (103) corrects the command value (idc*) such that high-frequency components of a current (iL) flowing in a first power-supply line (21), with respect to the fundamental frequency of an input current (iu1, iv1, iw1), are consumed in the switching power-supply circuit (61). The subtracter (105) obtains a deviation (?idc) between the corrected command value (idc*) and the current (idc). Commands (r1, r2) for switches are generated on the basis of the deviation (?idc).

Abstract: A system for an ice merchandiser having a compressor in a compressor enclosure to cool the ice merchandiser includes a sensor disposed within the ice merchandiser, and a communications component disposed within the compressor enclosure and coupled to the sensor to receive signals from the sensor representative of the amount of ice in the ice merchandiser, wherein the communications component is configured to convert the received signals to a digital format and publish the signals via a network connection.

Abstract: An intelligent energy-saving air conditioner includes a control device (1), a heat-exchange circulation system (2), a refrigerating system (3), and an inner air blower (41) and outer air blower (42) both are shared by the heat-exchange circulation system (2) and the refrigerating system (3). The control device (1) includes a temperature collecting and comparing unit and a control unit. The heat-exchange circulation system (2) includes a first heat exchanger (21) and a second heat exchanger (22) separately arranged from each other, and heat-exchange circulation pipes (24) connecting the first and second heat exchangers (21), (22). The refrigerating system (3) includes an evaporator (31), a condenser (32), a compressor (33) and refrigerating circulation pipes (34) connecting the evaporator (31), the condenser (32) and the compressor (33).

Abstract: A refrigeration managing apparatus that can reduce the time taken to determine refrigerant piping groups which connect refrigerant supply devices and cooling devices is provided. When determining cooling devices connected to refrigerant supply devices using refrigerant pipes, the refrigeration managing apparatus detects changes in the temperatures of evaporators of the cooling devices when the refrigerant supply devices are operated/stopped in accordance with change patterns which are stored in advance, which are determined on the basis of the number of refrigerant supply devices, and in which the states of the refrigerant supply devices are changed with time by being switched between an in-operation state and a stopped state.

Abstract: A receiver (50) is provided for collecting a refrigerant flowing through a refrigerant flow circuit. The receiver housing (52) defines an enclosed volume (55) establishing a refrigerant collection reservoir, and has an inlet (54), a first outlet (56), and a second outlet (58). A refrigerant metering device (70) is disposed within the enclosed volume (55) in operative association with the second outlet (58) for controlling a flow of refrigerant discharging through the second outlet (58). The refrigerant metering device (70) may be a capillary tube metering device (72). The receiver (50) may also include a refrigerant filter/dryer (80) disposed within the enclosed volume (55).

Abstract: A system, apparatus, and method for determining when an amount of ice formed on an evaporator or evaporator grid has reached a predetermined size are illustrated. An acoustic transmitter an acoustic transmitter positioned proximate to the evaporator channels acoustic signals emanating from the evaporator or evaporator grid to an acoustic sensor, which generates an electronic signal indicative of the acoustic signal. A receiver module coupled to the acoustic sensor is configured to receive the electronic signal and determine that ice formed on the evaporator has reached a predetermined size based on the electronic signal.

Abstract: A method is provided for protecting a refrigerant vapor compression system during a standstill period following shutdown of the refrigerant vapor compression system. A method is provided for detecting a low refrigerant charge level in a refrigerant vapor compression system operating in a transcritical mode. A refrigerant vapor compression system is provided that includes a controller operative to perform a refrigerant charge detection method.

Abstract: A controller continues to operate an ice making machine in a safe mode when a failure of a component is detected. While in the safe mode due to failure of an ice thickness probe, the freeze cycle freeze time is based on an average freeze time of a predetermined number of the most previous freeze cycles prior to the failure. While in the safe mode due to failure of a water level probe, the water valve on time is based on an average water valve on time of a predetermined number of the most previous freeze cycles prior to the failure. If the failure is uncured after a predetermined time, the controller causes the ice making machine to enter a standby mode or disables the ice making machine from making ice.

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 method and system for detecting and correcting unintended reverse or backward operation of an electric motor driven scroll compressor of a refrigeration system is characterized by monitoring the pressure at a suction side of the compressor during operation of the refrigeration and determining whether the pressure, after a first time interval following startup of the compressor, exceeds and remains in excess of a predetermined upper pressure limit for at least a second time interval. If it does, the compressor is turned off for a third time interval and is then restarted. The foregoing is repeated and if the compressor is turned off a selected number of times because of successive occurrences of high suction side pressures during operation of the refrigeration system in a chilling cycle, an error indication is generated and the refrigeration system is shut down.

Abstract: A user interface system includes a data receiving device and a portable data device having a memory. The portable data device may include a wireless interface configured to transmit data stored in the memory. A user may interface with the data receiving device by physically manipulating the portable data device.

Abstract: When an operating state indicated by a set of operation data measured during normal operation becomes a state satisfying an operation data obtaining condition, the set of operation data at the time is obtained as a set of operation data for initial learning, and an inner volume of a refrigerant extension piping is calculated based on the obtained set of operation data for initial learning. A total amount of refrigerant in a refrigerant circuit 10 is calculated based on the calculated inner volume of the refrigerant extension piping and the current set of operation data, and the calculated total refrigerant is compared with a reference amount of refrigerant to determine a presence or absence of refrigerant leakage.

Abstract: Disclosed is an air conditioner, in which, when a temperature sensor is rotated, the rotating speed of the temperature sensor is increased or the temperature sensing cycle is elongated in a rotating section where an object does not exist rather than in a rotating section where the object exists. Further, the rotating speed of the temperature sensor is increased or the temperature sensing cycle is elongated if the object is located at a short distance from the air conditioner rather than if the object is located at a normal distance from the air conditioner, and the rotating speed of the temperature sensor is decreased or the temperature sensing cycle is shortened if the object is located at a long distance from the air conditioner rather than if the object is located at a normal distance from the air conditioner.

Abstract: Disclosed is a refrigerator, and more particularly to a refrigerator wirelessly setting functions of the refrigerator by improving a configuration of the refrigerator. The refrigerator according to an embodiment includes a main body formed with a storage chamber, a door rotatably coupled to the main body, a first user interface rotatably coupled to the door, and a second user interface provide on the door, positioned on an rear side of the first user interface, and provided with a receiving unit receiving a wireless signal by an external remote controller.

Abstract: In a multi-type air conditioner, the adequacy of the refrigerant quantity charged in the air conditioner can be accurately determined, even when the refrigerant quantity charged on site is inconsistent, or even when a reference value of the operation state quantity, which is used for determining the adequacy of the refrigerant quantity, fluctuates depending on the pipe length of the refrigerant communication pipe, combination of utilization units, and the difference in the installation height among each unit. In an air conditioner (1) including a refrigerant circuit (10) configured by the interconnection of a heat source unit (2) and utilization units (4, 5) via refrigerant communication pipes (6, 7), a refrigerant quantity determining system determines the adequacy of the refrigerant quantity and includes a state quantity storing means and a refrigerant quantity determining means.

Abstract: A cooling device is disclosed for cooling a superconductor, wherein the cooling device includes a linear compressor for compressing a working medium and a cooling unit for providing a cooling power to a cryogenic coolant of the superconductor by expanding the working medium. The linear compressor includes two pistons of which at least one, preferably both synchronously relative to each other, are displaceable at a frequency and a stroke linear to the other piston, wherein a defined cooling power can be generated at a good efficiency so that the cooling device is suitable for use particularly in mobile installations, such as ships. To this end, according to at least one embodiment of the invention, the stroke of the at least one displaceable piston is controlled at a preferably prescribed target value.

Abstract: A method and machine for producing fresh and cool air, dew drinking water, hot air for the dryer, hot water for bathing or other purposes using an energy-saving and environmentally-friendly multipurpose air conditioning as a generator of dew drinking water, hot water and dryer. Mixture of fresh outdoor air and returned air from the rooms passed to the evaporator coils to condense the moisture from the air to produce pure and fresh dew drinking water and cool fresh air, where the air is then flown back into the room. Municipal water or other water then dip the hot discharge line to subcool the refrigerant before entering the condenser thus saving energy and at the same time produce hot water that can be used for bathing or other purposes. Hot air coming from air-cooled condensers can be used as a dryer.

Abstract: A refrigerator includes a refrigerator cabinet, at least one compartment disposed within the refrigerator cabinet, a door for providing access to one or more of the at least one compartment, an ice container at the door, an LED housing proximate the ice container, and at least one LED disposed within the LED housing for providing illumination of the ice container. In addition to providing lighting, the at least one LED may used to indicate status information associated with the refrigerator.

Abstract: According to a controller for a cooling system, when an optimum value of a low-pressure side pressure set value corresponding to an operation environmental condition to be generated is registered in a data base 15, the optimum value of the low-pressure side pressure set value is used. In a case where the optimum value of the low-pressure side pressure set value is not registered in the data base 15, when an optimum value of a low-pressure side pressure set value Ps corresponding to an operation environmental condition adjacent to the operation environmental condition to be generated is registered, the optimum value of the low-pressure side pressure set value Ps is used.

Abstract: Disclosed are apparatus and methodology subject matters for temperature monitoring and controlled access to refrigerated medications. An electronically controlled lock is installed on a refrigerator used for storage of temperature sensitive medications. Lock access is given to individuals having differing levels of access authorization so that user level authorization holders may have access to stored medications. Supervisor level authorization holders may have access to stored medications and may also effect changes in lock settings including setting alarm levels. Alarm levels may be adjusted to monitor temperatures within the refrigerated storage area so that in the case that temperature fall outside preset limits, access to the stored medicines may be had only by those individuals having supervisory access authorization.

Abstract: Disclosed is an electrostatic atomizer, which comprises a cooler adapted to cool an atomizing electrode so as to allow moisture in air to be frozen onto the atomizing electrode, a melter adapted to melt ice frozen on the atomizing electrode so as to supply water onto the atomizing electrode, a high-voltage applying section adapted to apply a high voltage to the atomizing electrode, and a control section adapted to activate the high-voltage applying section in a state after supplying water onto the atomizing electrode by melting the ice frozen thereon, so as to apply a high voltage to the atomizing electrode to electrostatically atomize the water supplied on the atomizing electrode.

Abstract: Provided is a refrigeration cycle wherein, when an orifice is disposed within a refrigeration circuit, and a differential pressure between the upstream side and the downstream side of the orifice is detected using two pressure sensors, the difference between the characteristics of the pressure sensors can be adequately and easily absorbed in software, to accurately determine an actual differential pressure, so that the flow rate of refrigerant and the torque of a compressor can be accurately estimated.

Abstract: Sensing, actuation of apparatus, and a control algorithm for use in automatically controlling an air-conditioning system by sensing multiple conditions and responding by actuating the mechanical components of the air-conditioning system to optimize the temperature of the coolant fluid, provide improved zone temperature control, provide status of system components, and provide an alert if there is overheating of a supply side system mechanical component.

Abstract: Controlling energy usage of a building. At least one temperature sensor monitors temperature within a zone of a building. A processor determines an off-peak temperature target as a function of a duration of an off-peak operating state of the monitored zone and a desired temperature within the monitored zone during a subsequent peak operating state of the monitored zone. A controller receives the determined off-peak temperature target and is responsive to the received off-peak temperature target to control the temperature within the monitored zone of the building during the off-peak operating state. Other aspects of the invention are directed to computer-readable media for controlling energy usage of a building as described.

Abstract: A management center is configured to communicate with a controller for an energy consuming system at a remote location, to receive ambient temperature data corresponding to an ambient temperature at the remote location, to calculate a projected energy consumption value for at least one component of the energy consuming system based on the ambient temperature data, to receive an actual energy consumption value for the at least one component from the controller, to compare the actual energy consumption value with the projected energy consumption value, and to generate an output based on the comparison.

Abstract: The present technology provides an illustrative hydrofluorocarbon (HFC) detection device that includes a decomposition component, a charged particle filter, and a sensing component. The decomposition component is configured to irradiate a gas sample with a radioactive element to decompose HFC gas under conditions sufficient to form hydrogen fluoride (HF) gas and one or more ionized particles. The charged particle filter is configured to filter the one or more ionized particles, and the sensing component is configured to detect the HF gas.

Abstract: A method and device for managing the operating conditions of a refrigerator unit using a single sensor are disclosed. The method includes the steps of determining a sensor temperature of a refrigerator unit, determining to which a plurality of disjoint temperatures regions the temperature lies within and setting an operating condition of each of a plurality of components of the refrigerator unit based on the determined temperature region.

Abstract: A control method includes measuring acidity of a fermented food and judging a ripening degree of the fermented food according to the measured acidity, determining whether or not measurement of salinity of the fermented food is performed through the judged ripening degree, and measuring salinity of the fermented food, and adjusting a storage temperature of the fermented food by lowering the storage temperature, if the measured salinity is higher than reference salinity, and raising the storage temperature, if the measured salinity is lower than the reference salinity. The storage temperature of the fermented food is set according to the measured ripening degree or salinity of the fermented food, and thus the storage temperature is set to the optimum temperature proper for the current state of the fermented food.

Abstract: A method and apparatus for actively cooling the battery pack of an electric vehicle after the vehicle has been turned off, thereby limiting the adverse effects of temperature on battery life, are provided. Different battery pack cooling techniques are provided, thus allowing the cooling technique used in a particular instance to be selected not only based on the thermal needs of the battery pack, but also on the thermal capacity and energy requirements of the selected approach.

Abstract: A method for decontaminating air in an ice making machine, comprising: controlling the level of ozone outputted from an ozone generator by modulating the voltage using pulse width modulation; and contacting the air with the ozone.

Abstract: A refrigerant system includes a compressor that has safe operating limits that are also built into a refrigerant system control to protect the compressor. Under certain conditions, these safe operational limits may be changed to allow the compressor to operate beyond the safety limits at least for a period of time.

Abstract: Systems and methods are provided for detecting performance degradation in a refrigeration system. Specifically, the present invention provides systems and methods for detecting, at a very early stage, a low refrigerant charge and degradation in condenser performance of a refrigeration system.

Abstract: In a refrigerating air conditioning system using refrigerant such as CO2 used in a supercritical area, a highly efficient refrigerating air conditioning system is provided by adjusting the amount of refrigerant in a radiator which contributes to the efficiency of the system stably and quickly. During heat utilizing operation, the superheat at the exit of an evaporator is controlled to a predetermined value by controlling the opening of an expansion valve provided on the upstream side of the evaporator, and an expansion valve is controlled so that the state of refrigerant in a connection pipe on the high-pressure side becomes a supercritical state. In this state, a flow rate control valve is controlled to change the density of the refrigerant stored in a refrigerant storage container and the amount of refrigerant existing in the radiator is adjusted.