Abstract: An industrial heat exchange system includes a cooling tower having an exterior wall and a top aperture. An exhaust fan is positioned near the top aperture. A mixing space of the cooling tower is positioned below the exhaust fan. An ambient air inlet extends through the exterior wall for providing outside air into the mixing space. A manufacturing air inlet extends through the exterior wall for providing heated air into the mixing space. The outside air and the heated air combine within the mixing space to define control air that is maintained above a minimum temperature. The heated air is delivered through an air duct extending from a manufacturing facility to the manufacturing air inlet.

Abstract: A front end of a steering grill from which air is discharged protrudes further than the front surface of a door assembly, and the steering grill is steered by a steering assembly, and thus conditioned air may be provided by a directed air movement to a long-distance target region, and since the front end of the steering grill protrudes further than the front surface of the door assembly, the occurrence of flow resistance as a result of a cabinet assembly or the door assembly interfering with the discharged air may be minimized, and the direction of the steering grill may be instantly changed, by means of steering, from any one direction to another among up, down, left, right, upper left, lower left, upper right, or lower right.

Abstract: A front end of a steering grill from which air is discharged protrudes further than the front surface of a door assembly, and the steering grill is steered by a steering assembly, and thus conditioned air may be provided by a directed air movement to a long-distance target region, and since the front end of the steering grill protrudes further than the front surface of the door assembly, the occurrence of flow resistance as a result of a cabinet assembly or the door assembly interfering with the discharged air may be minimized, and the direction of the steering grill may be instantly changed, by means of steering, from any one direction to another among up, down, left, right, upper left, lower left, upper right, or lower right.

Abstract: A front end of a steering grill from which air is discharged protrudes further than the front surface of a door assembly, and the steering grill is steered by a steering assembly, and thus conditioned air may be provided by a directed air movement to a long-distance target region, and since the front end of the steering grill protrudes further than the front surface of the door assembly, the occurrence of flow resistance as a result of a cabinet assembly or the door assembly interfering with the discharged air may be minimized, and the direction of the steering grill may be instantly changed, by means of steering, from any one direction to another among up, down, left, right, upper left, lower left, upper right, or lower right.

Abstract: Provided is an air conditioner comprising an outdoor unit comprising an outdoor heat exchanger; and an injection device configured to inject water to the outdoor unit, the injection device including a water tank configured to store water; a nozzle configured to inject the water to the outdoor heat exchanger; a communication interface; a memory storing at least one instruction; and at least one processor configured to: obtain state information of the outdoor unit, wherein the obtained state information includes at least one of condenser operating frequency information or fan revolution per minute information of the outdoor unit, and control a water injection operation of the nozzle to inject water to the outdoor heat exchanger, in accordance with the at least one of the condenser operating frequency information or the fan revolution per minute (RPM) information of the outdoor unit included in the obtained state information.

Abstract: An evaporative humidifier including a power unit housing, a blower assembly, a water tank, and a wick. The power unit housing includes an air entrance and an air exit. The blower assembly positioned in the power unit housing, the blower assembly being configured to draw air through the power unit housing when the evaporative humidifier is in an operational state in which humidified air is being supplied to an ambient environment. The water tank configured for storing water, and having no lower water outlet used when in the operational state. The wick positioned in the water tank such that water is drawn into the wick from the water tank, through the wick, and toward an air outlet, and such that when the evaporative humidifier is in the operational state, the blower assembly moves air from the air exit, through the wick, and toward the air outlet.

Abstract: A humidifier includes a water containing arrangement for containing water and a nebulizing device for nebulizing water from said water containing arrangement. Further, the humidifier includes an evaporation chamber arranged over said nebulizing device and said evaporation chamber terminates at an impactor. A fan is arranged to generate an air flow through said evaporation chamber towards the impactor. The impactor includes an inner body having a plurality of apertures, and an outer body having a plurality of further apertures fluidly connected to said plurality of apertures. The plurality of further apertures are offset relative to said plurality of apertures, such that each aperture of the plurality of apertures in the inner body faces a section of a material of the outer body that is spatially separated from said aperture of said plurality of apertures. Further, described is an impactor for use with such a humidifier.

Abstract: The disclosed technology relates to air filters and filter assemblies for filtering particulates from air, and more particularly to for filtering paint particulates from air. The disclosed technology can include a filter support frame having a plurality of air filter receptacle shelves configured to support a plurality of air filter boxes, a tray receptacle configured to receive a removable tray, an inlet configured to receive a mixture of air and particulates and channel a mixture of air and particulates across the removable tray toward the plurality of air filter boxes, an outlet configured to receive filtered air from the plurality of air filter boxes and channel the filtered air out of the filter support frame, and a base configured to support a removable plenum. The removable tray can be configured to collect particulates.

Abstract: A system and method for controlling air quality within an indoor space are disclosed. An example system includes an air circulation unit that moves air through ductwork of a heating, ventilation, and air conditioning (HVAC) system and an air sanitization unit within the ductwork of the HVAC system that sanitizes air passing through the ductwork of the HVAC system. The system further includes an indoor air quality controller that controls a rate at which the air circulation unit moves the air through the ductwork of the HVAC system responsive to inputs received at the indoor air quality controller and controls an operational status of the air sanitization unit responsive to the inputs received at the indoor air quality controller.

Abstract: Provided is a smart air disinfection ventilation system and method that can perform sterilization of floating bacteria and a floating virus in indoor air intended for minimizing harmfulness to the human body, and can minimize the consumption of energy.

Abstract: An air quality monitoring device and an associated method of manufacturing. An example air quality monitoring device may include a housing having a chamber and an inlet port. The inlet port may be structured to receive an air flow from outside the housing and provide the air flow to the chamber. The air quality monitoring device may include a plurality of sensors disposed within the chamber and configured to measure air quality data associated with the air flow. The air quality monitoring device may include an adapter configured to be connected to the inlet port and a continuous positive airway pressure machine. The inlet port may be configured to receive the air flow from the continuous positive airway pressure machine via the adapter. The air quality monitoring device may include a controller connected with the plurality of sensors and configured to transmit the air quality data to a computing device.

Abstract: The present disclosure provides an interface control relay module including a refrigerant sensor input connected to a refrigerant sensor of an air handling unit (AHU) that generates an input proportional to a concentration of a refrigerant leak in the AHU. The relay module further includes a control unit coupled to the refrigerant sensor input to receive the input from the refrigerant sensor; a first relay output and a second relay output, each connecting the control unit to a cooling unit of the AHU; a third relay output connecting the control unit to a fan of the AHU; and a fourth relay output connecting the control unit to a damper of the AHU. The control unit activates or deactivates at least one of the first relay output, the second relay output, the third relay output and the fourth relay output based on the input received from the refrigerant sensor.

Abstract: An air conditioner may include a case through which outdoor air flows into an indoor space is formed; a first heat exchanger that exchanges heat between the air and refrigerant; a second heat exchanger disposed downstream of the first heat exchanger, through which the refrigerant selectively flows, and that exchanges heat between the air and the refrigerant; a liquid pipe connected to each of the first and second heat exchangers; a high-pressure gas pipe connected to each of the first and second heat exchangers; a low-pressure gas pipe through which the gaseous refrigerant discharged from the first and second heat exchangers flows; a high-pressure gas pipe valve; a low-pressure gas pipe valve; an expansion valve installed in the liquid pipe; and a controller configured to control an opening degree of the low-pressure gas pipe valve, based on a temperature of the refrigerant flowing through the first heat exchanger.

Abstract: A parking garage having a ventilation control system for ambient gases utilizes software to intelligently modulate the rate of speed of a plurality of garage fan motors in the enclosed parking garage structure. Savings are driven by the known relationships between fan power draw and fan speed, whereby fans operate at lower speeds will draw much less power than when operating at high power, taking advantage of the highly non-linear relationship between the two.

Abstract: System and method for monitoring and detecting potential problems early in a VCC based HVAC&R system employs a monitoring application or agent that uses continuous machine learning and a temperature map to derive or “learn” a relation between a measured input power parameter of one or more system compressors, and condenser and evaporator intake fluid temperatures, based on observations of the temperatures and the input power parameter when the HVAC&R system is new or in a “newly maintained” condition. The monitoring agent can then use the learned relation to determine, based on subsequent observations of the condenser and evaporator intake fluid temperatures, the input power parameter values that should be expected if the HVAC&R system were operating in the “newly maintained” condition. The agent can thereafter compare the expected compressor input power parameter values with observed input power parameter values to determine early whether the system is experiencing performance degradation.

Abstract: A heating, ventilation, and air conditioning (HVAC) system includes a thermostat comprising a processor configured to determine instructions for providing a flow of conditioned air to a first zone of the HVAC system. The HVAC system includes a damper located in a duct associated with the first zone of the HVAC system. The damper includes a moveable plate configured to block the flow of conditioned air through the duct when the movable plate is in a closed position and allow the flow of conditioned air through the duct when the movable plate is in an at least partially open position. The damper includes a wireless receiver and transmitter configured to receive the instructions for providing the flow of conditioned air to the first zone. The damper includes an actuator configured to move the movable plate based at least in part on the received instructions, thereby adjusting the flow of conditioned air to the first zone.

Abstract: A system and method for intelligent operation and control of ductless HVAC devices in a manner similar to existing intelligent operation and control of central HVAC systems. In an embodiment, the system and method comprise using a smart thermostat to separately monitor the room temperature of a room in which a ductless HVAC device is installed, wherein the smart thermostat overrides the standard operation of the HVAC device by setting and re-setting the target temperature of the ductless HVAC device to force it to operate according to settings and algorithms of the smart thermostat which mimic the smart controls available on central HVAC systems.

Abstract: A heating, ventilation, and/or air conditioning (HVAC) system in accordance with present embodiments includes a housing, one or more sensing units disposed within the housing, and a controller disposed within the housing. The controller is operable to communicate with the one or more sensing units through a wireless communication link to receive sensed data, and analyze the sensed data by applying one or more data processing techniques.

Abstract: A method includes generating a mixed air temperature value using a reinforcement learning model running on the edge controller. A temperature setpoint and a weather forecast are inputs to the reinforcement learning model. The method also includes controlling damper positions of an air handling unit to achieve the mixed air temperature value.

Abstract: A heating, ventilation, and air conditioning (HVAC) fault prediction system for a building including a processing circuit including a processor and memory, the memory having instructions stored thereon that, when executed by the processor, cause the processing circuit to receive HVAC data relating to a plurality of HVAC components, the HVAC data indicating performance of the plurality of HVAC components, generate, based on the received HVAC data, a univariate prediction model and a multivariate prediction model, generate, using the received HVAC data, one or more predicted operational parameters for the plurality of HVAC components corresponding to a future time period, and execute at least one of the univariate prediction model or the multivariate prediction model on the one or more predicted operational parameters to predict a HVAC fault associated with at least one of the plurality of HVAC components to occur during the future time period.

Abstract: Appropriate ventilation for a building space while maintaining building comfort includes tracking one or more interior environmental conditions within the building space and one or more exterior environmental conditions outside of the building space during operation of the HVAC system. An environmental model for the building space is learned over time based at least in part on these tracked environmental conditions, where the environmental model predicts an environmental state of the building space in response to operation of the HVAC system under various interior and exterior environmental conditions. A maximum allowed ventilation rate that can be achieved without causing the HVAC system to compromise on any of one or more comfort conditions of the building space is predicted using the environmental model. The outdoor air ventilation damper of the HVAC system is then controlled to provide an appropriate ventilation up to or at the predicted maximum allowed ventilation rate.

Abstract: An air conditioner includes an indoor unit, an outdoor unit, an outdoor expansion valve, an indoor expansion valve, and a controller. The controller executes first control and second control. The first control includes stopping cooling operation or heating operation if a first condition is satisfied during cooling operation or heating operation, and then starting cooling operation or heating operation if a second condition is satisfied. The first condition indicates that a heat load in a target space is low. The second condition relates to the heat load in the target space. The second control includes setting opening degrees of the outdoor expansion valve and the indoor expansion valve upon a start of cooling operation or heating operation according to the first control to be larger than opening degrees upon satisfaction of the first condition.

Abstract: An air conditioning device is provided. The device has a fresh air component and a control valve assembly. The fresh air component has a housing assembly and an air treatment assembly. The housing assembly has a ventilation cavity, a fresh air cavity and an exhaust cavity. The air treatment assembly is disposed in the exhaust cavity. The control valve assembly has a first valve assembly and a second valve assembly, which are independent of each other. An outlet of the ventilation cavity is in communication with an indoor space through the exhaust cavity and an air outlet when the first valve assembly is in an open state. The outlet of the ventilation cavity is in communication with the fresh air cavity when the second valve assembly is in an open state.

Abstract: Systems and methods for thermal management are provided. In some embodiments, a vehicle for transporting one or more actively cooled totes, the vehicle includes: a central heat reject subsystem operable to reject heat from the one or more actively cooled totes; and an attachment mechanism for moving heat from the one or more actively cooled totes to the central heat reject subsystem.

Abstract: A chiller including a heat transfer tube and a method for controlling a chiller to determine a degree of contamination of a heat transfer tube are provided. As a degree of contamination of the heat transfer tube may be determined and a notification provided to a user regarding whether to clean the heat transfer tube, the chiller may be managed efficiently and an operation performance of the chiller may be maintained well.

Abstract: An air conditioning apparatus includes a refrigerant circuit and a controller. The refrigerant circuit is configured to allow refrigerant to circulate through a compressor, a condenser, an LEV, and an evaporator. The LEV has an opening degree variable from a lower limit opening degree to an upper limit opening degree. The controller is configured to control the LEV to alternately repeat a first opening degree and a second opening degree in a range of less than or equal to a quarter of the upper limit opening degree, the second opening degree being smaller than the first opening degree.

Abstract: A heating, ventilation, and air conditioning (HVAC) system includes a primary heat transfer circuit having a first heat exchanger fluidly coupled to an ambient environment and a compressor fluidly coupled to the first heat exchanger and configured to circulate a refrigerant through the primary heat transfer circuit. The HVAC system also includes a secondary heat transfer circuit having a second heat exchanger fluidly coupled to a thermal load and a pump fluidly coupled to the second heat exchanger and configured to circulate a heat transfer fluid through the secondary heat transfer circuit, where the heat transfer fluid is a non-volatile or inert fluid.

Abstract: An air-conditioning system includes: a compressor unit including a housing accommodating a refrigerant compressor; a high-pressure gas refrigerant pipe connected to a discharge side of the refrigerant compressor; a low-pressure gas refrigerant pipe connected to a suction side of the refrigerant compressor; and air-conditioners. The air-conditioners each include: a return-air inlet and a supply-air outlet each communicating with a predetermined space that is to be air-conditioned; a first heat exchanger configured to cause heat-exchange between refrigerant flowing in the first heat exchanger and air passing through the first heat exchanger; an exhaust-air outlet and an outside-air inlet each communicating with an outside of the predetermined space; and a second heat exchanger configured to cause heat-exchange between refrigerant flowing in the second heat exchanger and air passing through the second heat exchanger.

Abstract: Apparatus for tensioning pliable airducts while supporting internal HVAC components are disclosed. An airduct system includes an airduct having a tubular wall of a pliable material. The airduct is elongate in a longitudinal direction. The airduct system further includes a frame including a hoop disposable inside the airduct to support the tubular wall in a radial direction that is perpendicular to the longitudinal direction. The hoop is less flexible than the pliable material. The airduct system also includes a sensor to be attached to the frame to be in fluid communication with a current of air within the airduct. The sensor is to provide a feedback signal that varies in response to a changing condition of the current of air.

Abstract: A register for mounting on an opening of an air duct in a structure includes an annular face plate with a perimeter side wall sized and configured for a close fit with the opening. Two plenums are positioned inside the perimeter side wall, with a recess surrounding the plenums. Each plenum has a planar top surface that is adjacent or nearly co-planar with the annular face plate. The plenums open to the air duct and define a plurality of cavities beneath the top surface. A plurality of vent openings are defined in a perimeter wall of each plenum so that air from the air duct enters the plurality of cavities and flows through the plurality of vent openings and through the recess into the surrounding environment. The register presents a generally uniform aesthetic appearance between the face plate and the top surfaces of the plenums.

Abstract: An airfoil blade assembly includes an upper airfoil shell, and a lower airfoil shell and a pair of upper legs protruding from the upper airfoil shell and extending towards the lower airfoil shell. A pair of lower legs protrudes from the lower airfoil shell and extending towards the upper airfoil shell and are formed by bending material of the lower airfoil shell back upon itself. An upper strengthening rib formed is in the upper airfoil shell, and a lower strengthening rib is formed in the lower airfoil shell. The pair of upper legs and the pair of lower legs are abutting when the upper airfoil shell and the lower airfoil shell are selectively fixed to one another.

Abstract: This disclosure is a condensate evaporation device. An air conditioning apparatus includes a compressor, an evaporator and a condenser connected with one another. A water tray is arranged to receive the condensate. A water distribution module includes a water separator base and a water separator piece. The water separator piece and the water separator base are combined to define a water channel. The condensate flows through the water channel to evenly flow out. A multi-folded water absorbing body is arranged on one side of the water separator base to absorb the condensate flowed out from the water separator base. The water tank is arranged on a bottom side of the multi-folded water absorbing body. A fan is arranged on one side of the multi-folded water absorbing body. Accordingly, the condensate may be evaporated efficiently.

Abstract: An indoor unit is used in an air conditioner capable of executing a cooling operation by circulating a refrigerant. The indoor unit includes an indoor heat exchanger, a drain pan, a drain pump, and an indoor controller. The indoor heat exchanger (50) exchanges heat between the refrigerant and indoor air. The drain pan receives water generated in the indoor heat exchanger. The drain pump sucks up the water from the drain pan. At a time of executing the cooling operation, the indoor controller operates the drain pump when an evaporation temperature of the refrigerant in the indoor heat exchanger is equal to or lower than a dew point temperature of the indoor air. At the time of executing the cooling operation, the indoor controller controls the drain pump so as to have a period in which operation of the drain pump is not performed when the evaporation temperature of the refrigerant is higher than the dew point temperature.

Abstract: An exhaust conduit for neutralizing condensate from high efficiency gas storage water heaters is provided. The exhaust conduit includes an inlet configured to be coupled to an exhaust outlet of the heater, an outlet configured to be coupled to an exhaust vent, and a condensate chamber having an interior in fluidic communication with the inlet and the outlet. The condensate chamber has a lower portion configured to receive a neutralizer and an upper portion having a service port configured to provide access to the lower portion of the condensate chamber. The condensate chamber further includes a fluid outlet for draining the neutralized condensate via a drain line. The exhaust conduit has one or more ridges disposed in the chamber that are arranged to define a channel for directing condensate from the inlet across the neutralizer toward the fluid outlet.

Abstract: A flow-through heater assembly includes a housing and a heater. The housing includes an inlet, an outlet, and a bore extending between the inlet and the outlet. The heater is disposed within the housing and extends between the inlet and the outlet. The heater includes at least one opening proximate the inlet and at least one opening proximate the outlet. The heater defines an anfractuous path from the inlet to the outlet, and the openings in the heater are in fluid communication with the bore of the housing.

Abstract: A water heater support that supports and braces a water heater having a curved outer surface from falling backwards and damaging an adjacent firewall comprising an extendable support arm; a mount configured to mount the extendable support arm to the adjacent firewall; and a tip configured to engage the curbed outer surface of the water heater so that the extendable support arm supports and braces the water heater from falling backwards and damaging an adjacent firewall.

Abstract: The present disclosure is directed to systems and methods for automatically shutting off fluid flow through a fluid inlet line of a water heater upon detection of a leak of the water heater. The system may include an electrically powered shutoff assembly operatively coupled to the fluid inlet line, and a capacitor operatively coupled to the electrically powered shutoff assembly. The electrically powered shutoff assembly may be configured to shut off fluid flow through the fluid inlet line upon detection of a leak of the water heater, and the capacitor may be configured to store power received from an external power source. Accordingly, when the electrically powered shutoff assembly does not have access to electric power, the capacitor may power the electrically powered shutoff assembly to shut off fluid flow through the fluid inlet line.

Abstract: The present disclosure is directed to a mechanical and powerless leak detection and shutoff system that may be used in any commercially available water heater, e.g., both gas and electric. The system includes a spring-loaded shutoff assembly having a valve member operatively coupled to a fluid inlet line of the water heater. A handle of the shutoff assembly is maintained in an open configuration via a latching mechanism until a force is applied to cause the latching mechanism to release the handle and actuate the valve member to shutoff fluid flow through the fluid inlet line. The shutoff assembly is operatively coupled to a leak detection assembly via a cable. The leak detection assembly uses a fluid-soluble material that dissolves when exposed to fluid to thereby pull the cable to apply the force to disengage the latching mechanism.

Abstract: A solar energy utilization device, comprising a light energy utilization device (200) and a convex light concentrating device (100). The convex light concentrating device (100) is filled with a transparent liquid (130). The convex light concentrating device (100) has a light-transmissive convex sidewall (110) provided obliquely, and sunlight can be transmitted to the transparent liquid (130) from the light-transmissive convex sidewall (110). A first light energy utilization part (210) is provided at the bottom of an accommodating cavity, and sunlight transmitted from the transparent liquid (130) to the light-transmissive convex sidewall (110) forms a total internal reflection phenomenon, so that the convex light concentrating device (100) more conveniently concentrates the sunlight onto the first light energy utilization part (210).

Abstract: Disclosed is a portable heating/cooling device comprising one or more heating elements for transferring heat to an object, one or more cooling elements for cooling an object; wherein said heating or cooling elements are adapted for selectively providing either heating or cooling based on temperature maintenance requirements, an integrated control unit for regulating the temperature, one or more temperature sensors that provide real-time feedback to the control unit, and a power source for supplying energy to the heating/cooling elements.

Abstract: A heating, ventilation, and air conditioning (HVAC) system and controller therefor to operate with thermal energy reservoirs are provided to set a four-way valve to route a refrigerant through a refrigerant circuit in a first direction when the HVAC system is set to a cooling mode or in a second direction, opposite to the first direction, when the HVAC system is set to a heating mode; and set bypass valves in the refrigerant circuit based on a temperature of a temperature holding material in a thermal energy reservoir and which of the heating mode and the cooling mode the four-way valve is set to, wherein the bypass valves route the refrigerant through the thermal energy reservoir to transfer thermal energy between the refrigerant and the temperature holding material.

Abstract: A heat pump system comprises: an indoor unit comprising an air conditioning unit and a refrigeration cabinet unit, and an outdoor unit comprising a compressor unit, an outdoor heat exchange unit, and a switching device for selectively connecting the exhaust end of the compressor unit to one of the air conditioning unit and the outdoor heat exchange unit, and connecting the suction end of the compressor unit to the other of the air conditioning unit and the outdoor heat exchange unit; wherein, the outdoor throttling device side of the outdoor heat exchange unit is respectively connected to the first port of the air conditioning unit and the first port of the refrigeration cabinet unit, and the second port of the refrigeration cabinet unit is connected to the suction end of the compressor unit.

Abstract: An energy efficient heat pump includes a variable capacity compressor and a controller communicatively coupled to the variable capacity compressor. The controller is configured to receive a call for heating, determine an upper discharge pressure limit of the energy efficient heat pump, determine a lower discharge pressure limit of the energy efficient heat pump, determine a target discharge pressure value, where the target discharge pressure value is less than or equal to the upper discharge pressure limit and is greater than or equal to the lower discharge pressure limit, and modulate operation of the variable capacity compressor such that a detected discharge pressure of the heat pump approaches the target discharge pressure value.

Abstract: Disclosed herein are evaporator assemblies for heat pump systems. The evaporator units can comprise a housing defining an interior chamber, an air inlet and an air outlet. The air inlet and the air outlet can form an air flow path through the interior chamber, and an evaporator unit can be positioned within the interior chamber such that the air flow path contacts the evaporator unit. The air inlet having a semi-circular cross section through which air flows into the interior chamber, the semi-circular cross section having a straight edge and a curved edge. A velocity magnitude of the air flowing from the air inlet into contact with the evaporator unit can deviate less than 0.1 m/s from the average air velocity across the surface area of the evaporator.

Abstract: A cooling system drains oil from low side heat exchangers to vessels and then uses compressed refrigerant to push the oil in the vessels back towards a compressor. Generally, the cooling system can operate in any number and combination of three different modes of operation: a normal mode, an oil drain mode, and an oil return mode. During the normal mode, a primary refrigerant is cycled to cool one or more secondary refrigerants. As the primary refrigerant is cycled, oil from a compressor may mix with the primary refrigerant and become stuck in a low side heat exchanger. During the oil drain mode, the oil in the low side heat exchanger is allowed to drain into a vessel. During the oil return mode, compressed refrigerant is directed to the vessel to push the oil in the vessel back towards a compressor.

Abstract: The present invention relates to a connector provided between a condenser and a receiver driver and configured to fixedly couple the condenser and the receiver driver, and a vehicle heat exchanger including the same, and more particularly, to a connector capable of improving weldability between the receiver dryer side and the connector by means of a pipe-shaped clad plate or a ring-shaped clad seating member, and a vehicle heat exchanger including the same.

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed herein that include a cryogenic pump system comprising: a cryogenic liquid tank; a cryogenic pump including a suction adapter, the suction adapter connected to the cryogenic liquid tank via a liquid supply line and a gaseous return line; and a phase separator connected downstream of the cryogenic liquid tank and upstream of the cryogenic pump, the phase separator including a filtration structure integrated into the liquid supply line to separate vapor from cryogenic liquid, the phase separator connected to the gaseous return line to direct the vapor to the cryogenic liquid tank.

Abstract: A system for refrigerant leakage detection includes one or more sensors configured to detect one or more parameters of a building system including a refrigerant. The system further includes one or more storage devices storing instructions thereon that, when executed by one or more processors, cause the one or more processors to receive sensor data from the one or more sensors; apply the sensor data to a long short-term memory (LSTM) model to generate predicted sensor data corresponding to the one or more sensors; receive subsequent sensor data from the one or more sensors; compare the predicted sensor data to the subsequent sensor data; determine that the building system has a refrigerant leakage based on the comparison of the predicted sensor data to the subsequent sensor data; and, responsive to determining that the building system has the refrigerant leakage, take an action to address the refrigerant leakage.

Abstract: An air conditioning system, a refrigerant state detection method and a computer-readable storage medium. By adjusting first operating parameters of the air conditioning system, where the first operating parameters include a frequency of a compressor, a wind speed setting, and an opening degree of an electronic expansion valve; collecting second operating parameters of the air conditioning system at a preset time after the first operating parameters have been adjusted, where the second operating parameters include an outdoor environment temperature and operating parameters of the compressor; and determining a refrigerant state of the air conditioning system according to the second operating parameters.

Abstract: A refrigerant leakage detection system includes a first controller, and a second controller. The first controller uses a first method to determine the presence or absence of refrigerant leakage from the refrigerant circuit. The second controller uses a second method different from the first method to determine the presence or absence of refrigerant leakage from the refrigerant circuit. The refrigerant leakage detection system determines the presence or absence of refrigerant leakage from the refrigerant circuit on the basis of the determination result of the first controller and the determination result of the second controller. The refrigerant leakage detection system determines that there is a refrigerant leakage in the refrigerant circuit if the first controller determines that there is a refrigerant leakage from the refrigerant circuit and the second controller determines that there is a refrigerant leakage from the refrigerant circuit.