Abstract: The present disclosure provides a computer-implemented method of defrosting a heat pump of a water provision system installed in a building, the water provision system comprising the heat pump configured to transfer thermal energy from outside the building to a thermal energy storage medium inside the building and a control module configured to control operation of the heat pump, the water provision system being configured to provide water heated by the thermal energy storage medium to an occupant of the building at one or more water outlets, the method being performed by the control module and comprising: determining, based on performance of the heat pump, an expected start time of a next defrost cycle; and preparing the water provision system before the expected start time of the next defrost cycle.

Abstract: An air conditioner unit and a film heating assembly for use in the air conditioner unit, the air conditioner unit comprising a bulkhead defining an indoor portion and an outdoor portion and an indoor fan positioned within the indoor portion for selectively urging a flow of air through an indoor heat exchanger. The film heating assembly comprises a plurality of thick film heaters mounted to the bulkhead and an electrical relay system for selectively coupling the plurality of thick film heaters to an external power source.

Abstract: A humidifier includes a housing, a humidifying rotor, and an irradiator. The housing is formed with an air passage through which air passes and a water storage tank configured to store water. The humidifying rotor extends over the air passage and the water storage tank. The humidifying rotor rotates so that a portion of the humidifying rotor having absorbed moisture from the water storage tank moves to the air passage and releases the moisture. The irradiator irradiates part of the humidifying rotor with ultraviolet light.

Abstract: A ventilator comprising a housing comprising a first flowpath extending from a first inlet to a first outlet, and a second flowpath extending from a second inlet to a second outlet. The housing further comprises a partition defining a first chamber therein. The ventilator further comprises a second chamber. The first flow path extends through the first chamber and the second chamber, and the second flowpath extends through the first chamber. The ventilator further includes a movable damper disposed in the first flowpath and configured to apportion a quantity of a first fluid flowing therein between the first and second chambers. The second chamber and the movable damper are configured in a removable part adapted to be fitted in place of a cover part of the housing of the ventilator.

Abstract: A ventilator having a bypass ventilator core/blank core configured removably in a first chamber of a housing of the ventilator. Housing includes a first flowpath between a first inlet and a first outlet, and a second flowpath between a second inlet to a second outlet. The two flowpaths extend through the first chamber. The blank core includes at least one first passageway and at least one second passageway that are in fluid communication with the first flowpath and the second flowpath respectively, thereby allowing a first fluid to flow from the first inlet to the first outlet and a second fluid from the second inlet to the second outlet. Replacement of the blank core by one or more recovery cores enables conversion of the ventilator to a recovery ventilator.

Abstract: An analysis device is configured to operate a heating, ventilation, and air conditioning (HVAC) system and to receive an audio signal from a sound sensor, wherein the audio signal is associated with a condensing unit of the HVAC system. The device is configured to determine an audio signature from the audio signal and to determine whether a motor of the condensing unit is operating within a mode of operation based on the audio signature. The device is further configured to determine a fault type that is associated with the audio signature and to output a recommendation based on the determined fault type.

Abstract: A system for predicting a leak of a HVAC/Refrigeration system includes a critically charged HVAC/Refrigeration system configured to circulate a refrigerant to cool a space, and processing circuitry. The processing circuitry is configured to obtain the subcooling data from the critically charged HVAC/Refrigeration system. The processing circuitry is configured to predict a leak event by providing the subcooling data as an input to a neural network. The neural network is trained using historical data of one or more subcooling parameters of a plurality of critically charged HVAC/Refrigeration systems. The processing circuitry is configured to operate a display to provide a notification to a technician or a manager regarding the predicted leak event at the critically charged HVAC/Refrigeration system.

Abstract: Described herein are techniques for optimizing operation of a refrigerant climate control system using an energy management device. In an example process, the energy management device may receive an energy optimization signal that describes a characteristic associated with an electrical energy source. The process may also include the energy management device generating a control signal for a refrigerant climate control system to use the electrical energy source based at least in part on the characteristic of the energy optimization signal. The process may also include the energy management device providing the control signal to a controller of the refrigerant climate control system.

Abstract: The present disclosure provides embodiments for improved monitoring of building environments for building automation based on environment inferences and various aspects associated therewith. A method can include receiving, via a standalone sensing device positioned in a monitored building environment, real-time environmental sensor data. The method can include generating, for the monitored building environment and based on the real-time environmental sensor data, an environmental building inference indicative of a state of at least one of an occupancy of the monitored building environment, an asset within the monitored building environment, or an ambience of the monitored building environment. The method can include generating, for the monitored building environment based on the environmental building inference, a prescriptive building insight.

Abstract: A communication adapter connected to an indoor unit included in an air conditioner includes a communication unit, a determination unit, and a communication control unit. The communication unit communicates data to an air conditioning control apparatus that performs centralized control of a plurality of air conditioners. The determination unit determines whether or not transmission target data is communicated by using encryption communication. The communication control unit controls, when the transmission target data is communicated by using the encryption communication, the communication unit in order to communicate the transmission target data by using the encryption communication. Consequently, it is possible to decrease a laying cost of a dedicated communication cable and reduce a communication load needed for data communication related to the air conditioners in an existing communication network at the time of central control performed on the air conditioners.

Abstract: The systems and methods described herein allow for data produced by an HVAC device to be selectively shared with a third party, such as a contractor used to perform maintenance services on the HVAC device. The system and methods also allow for HVAC devices to be remotely configured to share data based on certain triggering conditions. Specifically, a controller built into an HVAC device may include a configuration file, which may dictate rules associated with collection and transmission of data by the HVAC device. A remote server may be configured to passively listen for data transmissions from any HVAC devices.

Abstract: A method for tracking amount of refrigerant added or removed from an HVAC/refrigeration system includes fluidly coupling a service tool with an inner volume of the refrigeration system. The service tool includes a reservoir that stores and discharges a refrigerant into the refrigeration system or receives the refrigerant from the refrigeration system, and a sensing portion positioned along a fluid flow path between the reservoir and the inner volume of the refrigeration system. The method includes operating the service tool to transfer an amount of refrigerant between the inner volume of the refrigeration system and the reservoir of the service tool. The method includes obtaining a signal from a sensor of the sensing portion indicative of a flow rate of the amount of refrigerant over a time period that the refrigerant is transferred. The method includes determining the amount of refrigerant based on the signal obtained from the sensor.

Abstract: A method includes determining, based on a signal from a sensor of a service tool that couples with a service port of the HVAC/Refrigeration system to add refrigerant to the HVAC/Refrigeration system or remove refrigerant from the HVAC/Refrigeration system, an amount of refrigerant added to the HVAC/Refrigeration system or an amount of refrigerant removed from the HVAC/Refrigeration system. The method includes determining a current refrigerant level in the HVAC/Refrigeration system. The method also includes performance monitoring for a fleet of units, and predicting an indication of a leak at the HVAC/Refrigeration system. The method includes building or using a database along with artificial intelligence (AI) or machine learning (ML) to predict leaks. The method includes operating a display to provide at least one of the amount of refrigerant added, the amount or refrigerant removed, or the current refrigerant level of the HVAC/Refrigeration system to a user.

Abstract: The system is for use with an occupiable space and comprises (i) a heat pumping arrangement including a refrigerant-containing circuit including an interior portion within the space and an exterior portion exterior to the space; (ii) a compression-expansion mechanism including a compressor and one or more expansion valves and operable in a heating mode to provide for compression of the refrigerant upstream of the exterior portion and downstream of the interior portion; and expansion of the refrigerant downstream of the exterior portion and upstream of the interior portion; (iii) a heater for producing a flow of heat; and (iv) distribution apparatus for, simultaneously: when the heater is producing, receiving its flow and transferring the received heat to air within the space; and when the compression-expansion mechanism is operating in the heating mode, absorbing heat from the interior portion of the circuit and transferring such heat to air within the space.

Abstract: A device is configured to operate a Heating, Ventilation, and Air Conditioning (HVAC) system. The device is further configured to receive a temperature value and determine a load demand value based on the temperature value. The device is further configured to determine the load demand value is greater than the load capacity value for the HVAC system and, in response, identify a first setting from among a first plurality of settings for the HVAC system. By default, access to the first plurality of setting for the HVAC system is restricted for a user. The device is further configured to receive a response approving permission to operate the HVAC system using the first setting to the user and send a trigger signal to an HVAC controller to operate the one or more components of the HVAC system using the first setting.

Abstract: An air conditioner includes an indoor and outdoor units connected by a power supply line, a common line, and a signal line. The indoor unit includes a first switch for connection between the power supply line and the signal line, and the outdoor unit includes: a second switch for connection between the power supply line and the outdoor unit; a smoother; and a third switch to connect the signal line and a resistor when in an off state, and be open when in an on state, the resister being connected to the second switch. When the outdoor unit starts, the first switch is turned on with the third switch in the off state to allow flow of an inrush current for charging the smoother and, after which, the second switch is turned on and subsequently the first switch is turned off and the third switch is turned on.

Abstract: An aspect of this electrical device includes: a body controller which controls the electrical device; a voltage generator which generates a voltage supplied to the electrical device; a wiring which connects the body controller to the voltage generator; and an electrical device casing which accommodates the body controller and the voltage generator, wherein the electrical device casing includes: a wiring chamber in which the wiring is arranged; a first chamber in which the body controller is accommodated; and a second chamber in which the voltage generator is accommodated, wherein an inside of the first chamber and an inside of the second chamber are connected to each other through the inside of the wiring chamber.

Abstract: An indoor unit included in an air conditioner that includes an outdoor unit includes a power receiving circuit (PR2), a low-frequency transmission and reception circuit as a first reception circuit, a high-frequency transmission and reception circuit as a transmission and reception circuit, and an inner-controller. The low-frequency transmission and reception circuit receives a current signal transmitted from an outdoor unit by using a current loop formed by a power line included in power supply wiring. For a first communication state in which physical connection between with the outdoor unit is recognized and a second communication state in which communication for operation of the air conditioner is performed between with the outdoor unit, the inner-controller selects use of the low-frequency transmission and reception circuit and the high-frequency transmission and reception circuit in the first communication state and the second communication state.

Abstract: The invention relates to an HVAC field device comprising a plurality of HVAC device blocks. The HVAC field device comprises: a) a base HVAC device block comprising: a base housing; an electric motor configured to drive an actuated part, and/or a sensor for the measurement of operational parameters of an HVAC system; a base control module connected to the electric motor, and/or the sensors; a base near field communication (NFC) circuit connected to the base control module; and b) a first add-on HVAC device block comprising: an add-on housing and a first add-on NFC antenna, wherein the base HVAC device block and the first add-on HVAC device block are mechanically connected, and wherein the first NFC antenna is electrically connected to the base HVAC device block.

Abstract: An acoustically absorptive system for a heating, ventilation, and/or air conditioning (HVAC) system includes a panel assembly. The panel assembly includes at least one acoustic absorptive member and a porous housing disposed about the at least one acoustic absorptive member such that a porous layer of the housing covers the at least one acoustic absorptive member at opposing faces of the panel assembly. A mounting assembly positions the panel assembly in a chamber of the HVAC system such that a gap is defined between a rear surface of the panel assembly and a wall of the chamber, the mounting assembly including one or more channels attached to the chamber.

Abstract: A blower is disclosed. The blower includes a fan configured to generate flow of air, a lower body providing an internal space in which the fan is installed, and having a suction hole through which air passes, an upper body positioned over the lower body and providing an internal space in which air discharged from the fan flows, a damper positioned behind the upper body, and a discharge port formed between an end of the upper body and an end of the damper, in which the upper body includes an opening formed at a rear end of the upper body and communicating with the internal space of the upper body, and the damper opens and closes the discharge port while moving in a front-rear direction behind the opening.

Abstract: An air conditioner indoor unit is provided. The air conditioner indoor unit includes a housing and a door opening and closing device. The housing has a vent and a mounting boss. The mounting boss has a first shaft hole and a mounting notch that is in communication with the first shaft hole. The door opening and closing device includes a valve, a motor cover, and a motor. The valve is located at the vent. The valve includes a first pivoting portion. A motor shaft of the motor cooperates with the first pivoting portion. The first pivoting portion is mounted in the first shaft hole through the mounting notch. The motor cover is fixed at the mounting boss.

Abstract: A heat pump water heater has a tank, a heat source, and a heat pump system. The heat pump system has a refrigerant path, at least a portion of which is in thermal communication with the water tank volume so that heat transfers from refrigerant to the water tank volume. A fan causes air to flow through a housing, and another portion of the refrigerant path includes an evaporator in the housing. The fan is within the housing and may further be within a second housing. The first housing may comprise a baffle to direct air flow. The fan may be a variable speed fan in communication with a controller, so that the controller controls the fan speed depending on a temperature of the refrigerant.

Abstract: A condensing heat exchanger (100) capable of lowering a requirement for a fan and a water heater having the same, wherein the condensing heat exchanger (100) comprises: a heat exchanger housing (110) having a flue gas inlet (101) and a flue gas outlet (102); and a heat exchange unit (104) located within the heat exchanger housing (110), wherein a sidewall flue gas exhaust channel (105) communicated with the flue gas outlet (102) is provided between the heat exchange unit (104) and an inner sidewall of the heat exchanger housing (110), the heat exchange unit (104) surrounds a flue gas inlet channel (103) communicated with the flue gas inlet (101), the sidewall flue gas exhaust channel (105) surrounds the heat exchange unit (104), and the heat exchange unit (104) is internally provided with a heat exchange flue which communicates the flue gas inlet channel (103) with the sidewall flue gas exhaust channel (105).

Abstract: The present disclosure relates to a computer-implemented method of modulating utility usage of a water provision system, the water provision system comprising a heat pump configured to transfer thermal energy from the surrounding to a thermal energy storage medium and a control module configured to control operation of the heat pump, the water provision system being configured to provide water heated by the thermal energy storage medium to a user at one or more water outlets, the method being performed by the control module and comprising: determining a water-usage event upon a water outlet being turned on for provision of water at a first temperature, the first temperature being set by the user; determining whether the water-usage event is a short-duration event based on at least one indicator; and deploying one or more utility-reduction strategies upon determining that the water-usage event is a short-duration event.

Abstract: There is provided a hot water supply system including: a controllable hot water supply outlet having when fully opened a given flowrate; a thermal energy store, containing an energy storage medium comprising a phase change material to store energy as latent heat, that is configured to receive energy from a source of renewable energy; a renewable energy source; the hot water supply system being operable, under the control of the processor, to heat water that is to be supplied to the hot water outlet to a target system supply temperature using a selection of one or more of the renewable energy source, energy from the thermal energy store, and optionally an auxiliary water heater intermediate the thermal energy store and the hot water supply outlet; wherein the thermal energy store has an energy storage capacity, when fully charged, that is sufficient to provide hot water to the hot water outlet, at the given flowrate, and at the target system supply temperature for a period of at least 8 minutes, and preferably

Abstract: An automated wirelessly-controlled solar pool heater including a photothermal module atop a floatation vessel for exposure to the sun, an internal pump assembly, a first temperature sensor for sensing temperature in the photothermal module, a second temperature sensor for sensing ambient pool water, a microcontroller board with wireless transceiver for remote monitoring and operation, and a solar-charging battery. In operation, the pump assembly self-primes and automatically fills the entire photothermal module with pool water. Water in the photothermal module begins to heat via heat absorption from the sun's rays and, when heated, the microcontroller activates the pump assembly to intermittently expel a partial volume of the heated water back into the pool, simultaneously refilling the photothermal module with unheated pool water. The recirculation program continues until the water temperature of the entire pool reaches its desired temperature.

Abstract: An energy collection system including a collection apparatus having a light concentrating lens is disclosed. The light concentrating lens can include a light receiving surface and a light exiting surface opposite the light receiving surface. The light exiting surface includes a curved shape configured to direct light passing through the lens to a focal point. The energy collection system further includes a concentrator apparatus having a conduit and an energy absorbing medium within the conduit to convert the solar energy to thermal energy.

Abstract: The invention relates to a facet for solar concentrators, suitable for its use as reflective element of a heliostat, the facet comprising a main body defining a front surface and a back surface. Advantageously, the back surface of the main body is attached to at least three substantially linear ribs, which are arranged substantially parallel along said back surface, and wherein at least one of the three ribs is configured with adjustable anchoring means adapted for their connection to the structure of a solar concentrator. Moreover, the anchoring means are adapted such that the distance between at least one of the three ribs and the structure of a solar concentrator can be varied. The invention also relates to a solar concentrator comprising said facet, and to a method of installation thereof.

Abstract: A heating, ventilation, and air-conditioning (“HVAC”) system for use with a refrigerant. The HVAC system includes a compressor, a condenser, an expansion device, an evaporator, and a separator. The compressor is operable to compress the refrigerant. The condenser is positioned downstream of the compressor and operable to condense the refrigerant. The expansion device is positioned downstream of the condenser and operable to reduce a pressure of the refrigerant flowing therethrough. The evaporator is positioned downstream of the expansion device and operable to vaporize the refrigerant from the expansion device. The separator is positioned downstream of the expansion device and operable to separate the refrigerant into liquid refrigerant and gaseous refrigerant. The gaseous refrigerant from the separator and the liquid refrigerant from the separator are combined prior to being compressed by the compressor.

Abstract: Disclosed is a sub-Kelvin temperature zone refrigeration mechanism. The sub-Kelvin temperature zone refrigeration mechanism includes a pulse tube refrigeration unit, first pre-cooling heat exchangers, a throttling refrigeration unit, second pre-cooling heat exchangers, an adsorption refrigeration unit, a third pre-cooling heat exchanger and a dilution refrigeration unit. The pulse tube refrigeration unit includes a pulse tube refrigeration part. The throttling refrigeration unit includes a throttling refrigeration part, and the throttling refrigeration part is connected with the adsorption refrigeration unit through the second pre-cooling heat exchangers so as to pre-cool the adsorption refrigeration unit. The adsorption refrigeration unit includes an adsorption refrigeration part, and the adsorption refrigeration part is connected with the dilution refrigeration unit through the third pre-cooling heat exchanger.

Abstract: The present application pertains to processes and systems for enhanced heat transfer. In some embodiments a process is described for removing a portion of a chemical from a heat transfer loop comprising a heat transfer fluid. The process may comprise adding a solvent to the heat transfer fluid in the heat transfer loop; removing at least a portion of the heat transfer fluid from the heat transfer loop; separating said removed heat transfer fluid into a permeate and a retentate using a membrane; and adding at least a portion of the permeate to the heat transfer fluid in the heat transfer loop.

Abstract: Systems, apparatuses and methods may provide for technology that includes a Peltier module and a subsystem thermally coupled and electrically coupled to the Peltier module, the subsystem to monitor an operational state of the subsystem, place the Peltier module in a first power mode if the operational state indicates that a demand spike exists with respect to the subsystem, and place the Peltier module in a second power mode if the operational state indicates that the demand spike does not exist with respect to the subsystem, wherein the second power mode is associated with a lower level of system power consumption than the first power mode.

Abstract: A heat pump includes a housing, at least one load transfer element arranged on an underside of the housing, a compressor arranged in the housing perpendicularly above the load transfer element, and further heat pump components that are likewise arranged in the housing, wherein a resilient insulating element is arranged between the compressor and the load transfer element. A plurality of heat pump components are positioned on a common carrying element arranged perpendicularly above a load transfer element, wherein a resilient insulating element is arranged between the carrying element and the load transfer element, wherein the compressor and the carrying element are assigned to the same load transfer element.

Abstract: A cryocooler includes an expander provided with an expander motor including a motor rotary shaft, a displacer that changes a volume of an expansion space of a working gas by reciprocating linearly by the motor rotation shaft rotating, and a rotary valve that controls intake and exhaust of the working gas into the expansion space by rotating by the motor rotation shaft rotating, a pressure sensor that measures a pressure of the working gas and outputs a measurement signal indicating the measured pressure, and a controller that receives the measurement signal, detects a feature point appearing periodically in the measured pressure during an operation of the cryocooler, acquires a motor drive waveform indicating a command rotation speed of the motor rotary shaft determined to vary within one rotation of the motor rotary shaft, and outputs the motor drive waveform in synchronization with the feature point appearing periodically.

Abstract: A Heating, Ventilation, and Air Conditioning (HVAC) system that is configured to receive a refrigerant from a condenser at a fixed expansion device and a variable expansion device. The system is further configured to output a first portion of the refrigerant to a first downstream HVAC component at a fixed flow rate using the fixed expansion device. The system is further configured to apply a first force to a pin of the variable expansion device based on a sensed temperature. The system is further configured to apply a second force to a valve of the variable expansion device via the force applied to the pin and to output a second portion of the refrigerant to a second downstream HVAC component at a variable flow rate based on the second force using the valve of the variable expansion device.

Abstract: A gas-liquid separator and an air conditioning device are provided. The gas-liquid separator includes a shell, an air outlet pipe, a filter member, and a fixed frame. The shell is provided with a liquid storage chamber. The air outlet pipe is at least partially disposed in the liquid storage chamber, and a portion of the air outlet pipe located in the liquid storage chamber is provided with a filter port. The filter member is fixedly connected to the filter port of the air outlet pipe to filter medium entering the air outlet pipe from the filter port. The fixed frame is fixedly connected to the shell and the filter member.

Abstract: A dynamic refrigeration system may automatically, at pre-determined time periods on-the-fly, adjust a refrigerant system's refrigerant pressures to predetermined optimal efficiency pressures as the internal and external heat loads change over a range. This may result in the refrigerant system pressures closely operating within a range of predetermined optimal efficiency pressures. This system may automatically instantaneously fine tune and balance on all air conditioning, heat pump, and refrigeration systems as the internal and external heat loads are continuously changing dynamically. The system may include a small liquid refrigerant pump and refrigerant storage tank, one or more wired or wireless pressure transducers and temperature sensors, and a “brain” to make decisions to keep the system instantaneously set at factory specs all the time. The system may include a wireless communication means so it can instantaneously report its operating condition, loads, and cost of operating.

Abstract: A refrigeration system comprises a variable speed compressor and a first evaporator. A second evaporator is operably coupled in series with the first evaporator. A first valve is coupled to the variable speed compressor and the first evaporator. A second valve is fluidly coupled to the second evaporator, and a pressure regulator is coupled to the second valve.

Abstract: Systems, methods, and computer-readable mediums are provided for improving the efficiency of a filter-type oil separator in a cooling system including a compressor that pumps a mixture of lubricating oil and refrigerant through the filter-type oil separator. The filter type oil separator is configured to receive a first portion of the mixture from the compressor, and a bypass line is configured to bypass a second portion of the mixture around the filter-type oil separator. The bypass line ensures a sufficient amount of oil is present in the compressor.

Abstract: The present application relates to techniques for operating a refrigerant climate control system in one of a plurality of operating modes. In an example process, sensor data is received. The sensor data may correspond to a current state of a refrigerant in a receiver of the refrigerant climate control system. The process may also include receiving an energy control signal requesting operation of the refrigerant climate control system. The process may also include determining an operating mode of the refrigerant climate control system based on a signal type of the energy control signal and the current state of the refrigerant in the receiver. The process may also include instructing the refrigerant climate control system to operate in the determined operating mode.

Abstract: Described herein are techniques for coordinated operation of refrigerant climate control systems in an optimized manner. In an example process, climate control information for a plurality of refrigerant climate control systems is maintained. An energy optimization signal is received that describes a characteristic associated with an electrical energy source. A set of control signals is generated for a set of refrigerant climate control systems based on climate control information and the energy optimization information. The set of control signals is then sent to a set of refrigerant climate control systems. Each control signal may be configured to cause a respective refrigerant climate control system to operate using the electricity from the electrical energy source.

Abstract: An ice maker comprises: a first tray forming a part of an ice-making cell; a second tray forming another part of the ice-making cell; and a heater which is disposed so as to be adjacent to the first or the second tray, wherein the heater operates during a period when cold air is supplied to the first tray and the second tray and ice making takes place, and supplies heat to the first tray and/or the second tray.

Abstract: An ice maker includes an ice-making container that includes a first tray and a second tray coupled to each other at a sealing surface between the first tray and the second tray. The ice maker may include a water supply guide including one end connected to the ice-making container, the water supply guide being configured to supply water to the ice-making container. The ice maker may include a first heater provided adjacent to or in the ice-making container; and a second heater provided adjacent to or in the ice-making container, and provided at a position that is different than a position of the first heater. The first heater may be provided closer to the sealing surface than the second heater.

Abstract: A refrigerator includes a cabinet defining a storage space, a door configured to open and close at least a portion of the storage space, and an ice maker assembly provided in the storage space. The ice maker assembly includes an ice maker provided forward of a cold air discharge port that is provided at a rear portion of the storage space, where the cold air discharge port is configured to deliver cold air, a front cover that covers a front side of the ice maker and that is configured to be exposed to an outside of the cabinet based on the door being opened, and a heat insulating material provided at a rear surface of the front cover and configured to at least partially block the cold air passing through the ice maker from being delivered past a front surface of the front cover.

Abstract: An electronic paper display is used for an ice-lined cold storage device to display data from the device's data system and/or from an external network.

Abstract: Payload containers containing temperature modulators and coolant containers containing coolant movably coupled inside of an outer container. Temperature modulators contain one or more solutions that directionally freeze when the product container is in contact with the coolant container, exerting force to push thermal conductors apart. When thermal conductors are apart, air flow and thermal conduction from the coolant container to the payload container is reduced, thereby stopping the cooling of the payload container. When the one or more solutions melt, the thermal conductors reconnect, reestablishing the cooling of the payload container. The modulation allows the payload to stay within safe temperature ranges.

Abstract: Provided is an electrical device. In a setting unit, a right-room temperature display unit displays a set temperature or the current temperature of a first housing room. A left-room temperature display unit displays a set temperature or the current temperature of a second housing room. A right-room temperature setting button is an operation unit for a user to switch the set temperature of the first housing room. A left-room temperature setting button is an operation unit for a user switch the set temperature of the second housing room. The set temperature difference between the first and second housing rooms is controlled to be within a prescribed value. When the set temperature of one of the first and second housing rooms is changed so that the set temperature exceeds a prescribed value, a microcomputer automatically changes the other set temperature so that the set temperature difference is within a prescribed value.

Abstract: A refrigeration system including an evaporator defining an evaporator envelope and positionable to condition an airflow, the evaporator including an airflow inlet, an airflow outlet, and one or more refrigerant coils. The refrigeration system also includes a pressure sensor that is positioned to detect an outlet air pressure at or adjacent the outlet, and positioned to detect one or both of an ambient air pressure and an inlet air pressure and to generate a signal indicative of the corresponding air pressure. A control system in operative communication with the pressure sensor to determine a pressure differential based on the signal indicative of the outlet air pressure and the signal indicative of the ambient air pressure or the inlet air pressure, the control system configured to selectively initiate a demand defrost of the evaporator based on the determined pressure differential.

Abstract: A refrigerator appliance having a cabinet defining a chamber and a rotatably hinged door to at least partially seal the chamber or provide access to the chamber. The cabinet includes an induction coil and the door includes a heat pipe to provide a wireless anti-condensation system to a refrigerator mullion.