Abstract: A motor control device includes: a control processing unit that controls the driving of a motor based on a command signal input from a controller and a detection signal which is a detection result of the operation of the motor; an abnormality determining unit that detects an abnormality in the controller, the motor control device, and the motor according to the command signal, the detection signal, and a control signal generated in the motor control device and that determines a level of repeatability of the detected abnormality on the basis of a predetermined criterion; a specific abnormality storage unit that stores occurrence information of a specific abnormality which is determined to have high repeatability on the basis of the predetermined criterion; and an abnormality releasing unit that erases the occurrence information of the specific abnormality stored in the specific abnormality storage unit according to an erasure command signal.

Abstract: The present invention in some embodiments can utilize a board for retaining a tube within a region. The board (or boards) and region can have many configurations. A transfer layer having a graphite layer can be applied and/or bonded to the board. A metal or non-metal layer can be bonded to the graphite layer as part of the transfer layer. The present invention takes advantage of the principles of heat transfer to produce a more effective and efficient system and methods of use.

Abstract: A reducing agent tank is provided which enables detachment of a top cover and a heat exchanger while maintaining a long path length of a heat exchanger in a reducing agent tank. A first pipeline and a second pipeline respectively have extension portions which extend from lower ends of a suspended portion along a bottom face toward a side face of a container main body, and rising portions which extend from leading ends of the extension portions along the side face toward an upper face of the container main body. A length of the extension portions along the bottom face is larger than a maximum inside length of an opening. The rising portions and a turning portion form a leading end bent portion, and a rising length of the leading end bent portion is smaller than a minimum inside length passing through a center of the opening.

Abstract: An electromagnetic probe for non-destructive inspection of a twisted tube of a twisted tube heat exchanger comprising a probe body having a sensing section being configured to allow circulation of the probe body within the length of circular tube and the length of helical oval tube and to allow displacement of the electromagnetic sensor(s) from a radially inward contracted position to a radially outward expanded position in close proximity to an interior surface of a crest of the oval tube; a conduit attached to a proximal end of the probe body, the at least one conductor extending within the conduit to a remote end of the electromagnetic probe.

Abstract: A hazardous gas detection system includes a first and second plurality of air sampling ports in fluid communication with an exhaust duct of a gas turbine enclosure. The first and second plurality of air sampling ports is fluidly connected to a first and second outlet orifice respectfully. A primary sensor is in fluid communication with the first outlet orifice and a secondary sensor is in fluid communication with the second outlet orifice. The primary and secondary sensors generate signals indicative of hazardous gas concentrations in first and second aggregated exhaust air samples. A computing device monitors the hazardous gas concentrations, monitors functionality of the primary and secondary sensors and generates a command signal indicating an operating mode for the gas turbine based on at least one of the hazardous gas concentrations in the first and second aggregated exhaust air samples and the functionality of the primary and secondary sensors.

Abstract: A service water heating unit (2), provided for use in a heating installation, includes at least one heat exchanger (6), defining a first flow path (10) for a heating medium and a second flow path (12) for service water to be heated. The two flow paths (10, 12) are guided relative to one another in a first portion (A) in a countercurrent arrangement with directions of flow oriented in opposite directions, and in a second portion (B) connecting downstream, viewed in the direction of flow of the service water, in a co-current arrangement with directions of flow oriented in the same direction.

Abstract: Methods and systems are provided for monitoring the condition of an air filter of an HVAC system to provide an indication of when the air filter should be changed. An HVAC controller may be configured to include a filter change notification, wherein the HVAC controller may monitor the current condition of the air filter, and may display a filter change notification on the display when the current condition of the air filter passes a filter change threshold value. In some cases, the HVAC controller may be configured to perform, sometimes at the request of a user, one or more calibration tests on the air filter to help the user identify an appropriate filter change threshold value. Alternatively, or in addition, the HVAC controller may, through a user interface, allow a user to enter and/or change a filter change threshold value, as desired.

Abstract: A temperature sensor assembly for use with a process vessel wall includes a base structure, a first temperature sensor, a second temperature sensor, and a processor. The base structure forms a contact area with an external surface of the process vessel wall. The first temperature sensor extends through the base structure to measure a temperature of the external surface of the process vessel wall. The second temperature sensor is at a second surface spaced from the first surface to measure a temperature of the second surface of the base structure. The processor is connected to the first and second temperature sensors, and adapted to determine an internal process vessel wall temperature value as a function of the measured temperature of the external surface of the process vessel wall, the measured temperature of the second surface of the base structure, base structure parameters, and process vessel wall parameters.

Abstract: The invention relates to a heat exchanger 10, comprising: a first unit 12 having a first conduit 16 for passing a flow of a first fluid through the first unit 12; a second unit 14 having a second conduit 28 for passing a flow of a second fluid through the second unit 28, wherein the flow of the first fluid is isolated from the second unit 14 and the flow of the second fluid is isolated from the first unit 12; and, a third conduit 40 connecting the first 12 and second 14 units, wherein the third conduit 40 is for carrying a flow of an intermediate fluid between the first 12 and second 14 units so as to transfer heat between the first fluid and the second fluid, when in use.

Abstract: A refrigerating apparatus includes a casing body attached to an opening formed at one end of a box-shaped cooling compartment so as to close the opening, a refrigeration cycle unit including a compressor and a radiator provided on an outer side of the cooling compartment relative to the casing body and an evaporator provided on an inner side of the cooling compartment relative to the casing body, a diagnosis process executer configured to control the refrigeration cycle unit to execute a diagnosis process for diagnosing a performance of the cooling compartment, and a performance determinator configured to determine the performance of the cooling compartment in the diagnosis process.

Abstract: A method of collecting data from multiple sources in a multi-tenant system is provided. The method includes obtaining data corresponding to a first tenant in the multi-tenant system and a second tenant in the multi-tenant system from a first source, obtaining data corresponding to the first tenant in the multi-tenant system and the second tenant in the multi-tenant system from a second source, and aggregating the data obtained from the first and second sources into a single database and associating each entry of the obtained data with at least one of the tenants of the multi-tenant system.

Abstract: A system and method for operating an electric heater to determine heater functionality is based on actual heater power consumption relative to expected heater power consumption during operating conditions where electrical power consumption by other system components can be accurately estimated. One or more components, including a second heating source, may be controlled based on the heater functionality. The system may include a hybrid vehicle having an engine, an electric heater and heater core, a valve positioned to route coolant through the engine and/or the electric heater, and a controller configured to store a diagnostic code and/or start the engine when the electric heater is commanded on and when the actual energy consumption of the electric heater is below a corresponding threshold.

Abstract: Systems, methods, and medium remotely monitor and control heating, ventilation and air-conditioning (HVAC) units. The method includes receiving by a processor via a communication network supply temperature data indicating a supply air temperature in a duct coupled to an HVAC unit. The method includes receiving by the processor via the communication network zone temperature data of a space being maintained by the HVAC unit. The method includes receiving by the processor via the communication network thermostat data from a thermostat in the space and analyzing by the processor at least one of the supply temperature data, the zone temperature data and thermostat data. The method includes generating by the processor a control signal responsive to the analysis and transmitting via the communication network the control signal to an HVAC controller, wherein the control signal causes the HVAC controller to control the HVAC unit.

Abstract: In one embodiment, the disclosure includes an air-based geothermal cooling system for a telecom utility cabinet. The air-based geothermal cooling system includes a plurality of heat exchange tubes configured to extend into an underground environment. The air-based geothermal cooling system also includes an input/output (I/O) manifold coupled to the plurality of heat exchange tubes and providing an airway between the plurality of heat exchange tubes and the telecom utility cabinet.

Abstract: A system and method are disclosed for automatically operating a high voltage resonance circuit. An embodiment of the system includes one or more coils each coil can be an alternating current (AC) coil or a direct current (DC) coil. An embodiment of the system further includes a microprocessor that issues commands to control amplitude and frequency of pulses of the one or more coils to reach and maintain a resonant condition for water treatment. The microprocessor determines whether a coil is an AC coil or a DC coil by detecting whether a capacitor is connected in series with the coil. An embodiment of the system further includes one or more sensors that measure the quality of water and provide feedback to the microprocessor.

Abstract: Fan coil thermostats can provide energy savings by, for example, not unnecessarily heating and/or cooling an unoccupied room or other space. Fan coil systems employing such a fan coil thermostat may be more energy efficient. A fan coil system may include a fan coil that is configured for fluid communication with a source of heated fluid and/or a source of cooled fluid, a valve that controls fluid flow through the fan coil, a fan that blows air across the fan coil and a fan coil thermostat. The fan coil thermostat may include a controller that implements a control algorithm that may include an unoccupied temperature setting. The controller may be programmed to permit a user to enter a user-chosen temperature setting. In response, the controller may initiate a timer, and may automatically return to the unoccupied temperature setting once the timer has expired.

Abstract: A mix door includes a slide door unit, a slide driving part configured to drive the slide door unit, and a gear cover partially covering the slide driving part. The slide driving part includes a gear mechanism portion formed of a rack portion and a gear portion. The gear cover is provided to cover the gear portion.

Abstract: A method and a device for transporting heat-sensitive products in a refrigerated lorry, of the type involving indirect injection of a cryogenic fluid into a heat exchanger system internal to the chamber(s) in which the products are stored, the lorry additionally comprising a heating system able to heat the air inside at least one of the chambers, notable in that the production of cold and the heating system are interfaced both in terms of how they are positioned in the chamber and in terms of how they operate.

Abstract: A method for measuring, from a thermal device, temperature, molecular number density, and/or pressure of a gaseous compound as function of distance, the gaseous compound absorbing at least some light. The method comprises generating, for a first wavelength band and a second wavelength band, a pulse sequence comprising a light pulse or light pulses, guiding the pulse sequence into the thermal device, and measuring, as function of time, the intensity of the scattered light at the first wavelength band and at the second wavelength band. The method further comprises determining information indicative of the differential absorption between the two wavelengths bands using measured intensities and determining the temperature, the molecular number density, and/or the pressure of the gaseous compound using the information indicative of the differential absorption between the two wavelengths bands. A thermal system arranged to carry out the method.

Abstract: A cooling circuit for a fuel cell includes at least one channel, a mechanical support, a first sensor, and a second sensor. Each channel is formed in a bipolar plate of the fuel cell, and is adapted to permit a cooling fluid to flow. The first sensor senses a flow rate of the cooling fluid. The second sensor senses an electrical conductivity of the cooling fluid. Both the first sensor and the second sensor are installed on the mechanical support.

Abstract: A heat-pump circuit may include an indoor heat exchanger, an outdoor heat exchanger, a compressor adapted to circulate a working fluid between the indoor and outdoor heat exchangers, and an expansion device disposed between the indoor and outdoor heat exchangers. A monitor for the heat-pump system may include a return-air temperature sensor, a supply-air temperature sensor, and a processor. The return-air temperature sensor may be adapted to measure a first air temperature of air upstream of the indoor heat exchanger. The supply-air temperature sensor may be adapted to measure a second air temperature of air downstream of the indoor heat exchanger. The processor may be in communication with the return-air temperature sensor and the supply-air temperature sensor. The processor may be programmed to determine a working-fluid-charge condition of the heat-pump system based on the first and second air temperatures.

Abstract: An apparatus and a method for the treating gases, such as natural gas extracted as shale gas, has a heat-insulated protective housing with a stratified liquid reservoir. An outer heat exchanger outside the protective housing has a primary side about which ambient air flows as heating medium and a secondary side for cold stratified reservoir liquid to be heated and fed back to the stratified reservoir. A defined quantity of gas flows through an inner heat exchanger inside the housing and is heated to a defined gas temperature by heated stratified reservoir liquid. The cooled stratified reservoir liquid leaving the inner heat exchanger feeds back to the stratified reservoir. The heated gas leaving the inner heat exchanger flows to a gas analysis apparatus inside or outside the heat-insulated protective housing.

Abstract: The invention refers to a heat exchanger plate and a plate heat exchanger. The heat exchanger plates are arranged beside each other in the plate heat exchanger to define several first plate interspaces for a first medium and several second plate interspaces for a second medium. Each heat exchanger plate comprises a heat transfer area, an edge area, which extends around and outside the heat transfer area, and a functional device, which is configured to receive or produce a signal. The heat exchanger plate also comprises a communication module provided on the heat exchanger plate. The communication module comprises an electronic circuit connected to the functional device and a module antenna. The communication module is configured to permit wireless communication of the signal with a master unit via the module antenna.

Abstract: An inspection apparatus for a heat transfer tube is provided in an inspection robot to be fixed to a tube plate surface of a tube plate at which the heat transfer tube is opened and is for inspecting a seal-welded portion at which the heat transfer tube is welded to the tube plate. The inspection apparatus includes: an inserting unit to be inserted into and withdrawn from the heat transfer tube; a detecting unit having detecting unit for detecting the presence or absence of a defect at the seal-welded portion; a rotating mechanism for rotating the detecting unit around a central axis of the inserting unit; and a moving mechanism for moving, with respect to the inspection robot, the inserting unit, the detecting unit, and the rotating mechanism along the central axis for the rotation of the detecting unit.

Abstract: A heat dissipation system for a number of cabinets mounted in a container includes a first heat dissipation apparatus, a second heat dissipation apparatus including a condenser, an inlet pipe assembly connected to the cabinets, an outlet pipe assembly connected to the cabinets, a connecting pipe connected between the inlet pipe assembly and the outlet pipe assembly, a extension pipe connected between the connecting pipe and the inlet pipe assembly, a first valve connected to the connecting pipe and located between the first dissipation apparatus and the second dissipation apparatus, a second valve connected to the extension pipe, a number of temperature sensors installed in the cabinets, and a controller electrically coupled to the temperature sensors, the first valve, the second valve, and the condenser. The controller controls the first valve, the second valve, and the condenser to turn on or off according to temperature sensed by the temperature sensors.

Abstract: A system off configuration for an automotive climate control system is provided. The climate control system includes a compressor having two downstream flow paths. The two downstream flow paths may be selectively used to provide multiple modes of operation. When the compressor moves to an off condition the valves found in each flow path immediately downstream from the compressor are closed so that a refrigerant oil blend is kept in the compressor.

Abstract: Apparatus, systems, methods, and computer program products are disclosed for providing software updates to client devices. A client device (such as a thermostat) executes software to perform one or more functionalities of the device. Upon receiving an indicating that a software update is available, the device waits to download the software update until pre-download conditions are satisfied. Once the software update is downloaded, the device then waits to install the software update until pre-install conditions are satisfied. If the software update is non-critical and received during an initial installation of the device, the software update may not be installed until after installation of the device is complete. If the device is a thermostat, the device may delay installation of the software update until a controlled HVAC system in inactive. Control of the HVAC system may be disabled during installation of the software update.

Abstract: A method for heat exchange with a heat transfer medium including providing a ground loop circuit through which the heat transfer medium is circulatable. The circuit includes an end portion, positioned proximal to a heat exchanger, one or more pipe portions having embedded parts thereof positioned in pipe bodies. Each pipe body defines a conduit therein through which a fluid is flowable, and has an exterior surface engaged with ground material. The method also includes circulating the heat transfer medium through the ground loop circuit, to permit heat transfer between the heat transfer medium moving through the embedded part and the fluid in the conduit, and heat transfer between the heat transfer medium moving through the embedded part and the ground material engaged with the pipe body.

Abstract: The invention relates to a method for preventing and detecting coolant discharges from complex hydraulic systems. The aim of the invention is to configure such a method in such a way that this method in particular meets requirements for preventing/limiting the development of explosive atmospheres in working areas and for reducing measures from previously otherwise typical requirements for Ex zones. This aim is achieved in that a circuit carrying coolant is divided into small volumes that have stop valves and a relief valve, wherein a leak detection diagnosis can be carried out by means of a pressure sensor that can be integrated.

Abstract: A temperature control circulator device for fluidic temperature control that can connect to auxiliary heaters and pump to increase the available heating power and temperature control effectiveness of the temperature control circulator device in when dealing with large fluid volumes. The system can control the auxiliary heaters and pumps and the auxiliary devices may have sensors that feed back to the temperature control circulator device for more precise control of the fluid bath. The system also has a bottom perforated removable housing with a flow or directionally and flow adjustable pump system.

Abstract: A metallurgical furnace system having a furnace body at least partially defined by a refractory wall and configured for holding a molten metal therein. The system further including one or more cooling elements, each including a working fluid contained therein and defining a heat absorption section and a heat rejection section. The heat absorption section configured for disposing within the refractory wall to absorb heat from the refractory wall. The heat rejection section configured to reside outside the refractory wall to reject heat absorbed by the heat absorption section. The working fluid generating a vapor flow within the one or more cooling elements in response to absorbed heat. The cooling system further including a coolant flow in contact with an exterior surface of the one or more cooling elements for dissipating heat from the heat rejection section. A cooling system for a metallurgical furnace and method of cooling are also disclosed.

Abstract: A plate fin heat exchanger of the present invention includes a heat exchange part including a heat exchange part main body including layers of plural flow passages, and heat transfer members each of which is disposed within each flow passage of the heat exchange part main body to transfer the heat of fluid flowing in each of the flow passages to each partition walls opposed across the flow passage; and sensing parts connected to both the outsides of the heat exchange part respectively. Each of the sensing parts includes plural sealed spaces, and a sensor wall disposed to separate the outermost sealed space from the sealed space on the inner side thereof. The plate fin heat exchanger further includes a detection means for detecting damage of the sensor wall of the sensing part. According to such a structure, external leak of the fluid performing the heat exchange can be prevented while suppressing deterioration of performance or increase in size or weight.

Abstract: A dew condensation detecting device includes a dew condensation detector and a heat transfer part. The dew condensation detector is provided to a supply pipe, which supplies a cooling medium from a cooling medium supply apparatus to a device to be cooled. The dew condensation detector detects a dew condensation by detecting a water droplet due to the dew condensation. The heat transfer part transfers heat from the cooling medium flowing in a return pipe, which returns the cooling medium from the device to be cooled to the cooling medium supply apparatus, to the cooling medium flowing in the supply pipe between the dew condensation detector and the device to be cooled.

Abstract: A rotary type heat exchange apparatus with automatic flow rate exchange modulation includes unidirectional pumps for pumping fluid through a heat exchange rotating disk in two different directions. The heat exchange apparatus may further be installed with at least one temperature detecting device, humidity detecting device and/or gaseous or liquid state fluid composition detecting device for generating temperature, humidity, and/or composition detection signals. The temperature humidity, and/or composition detection signals may be used as references for modulating the pumping flow rate of exchange fluid, or for modulating the operating timing of the fluid flow by controlling the rotating speed of the heat exchange rotating disk.

Abstract: A method that controls pressure within an immersion cooling tank having condensation fluid flowing through a condenser, includes: a controller receiving a signal that indicates a current level of vapor pressure within the tank; determining from the signal when the current level of vapor pressure exceeds or is below a first preset threshold pressure level; and in response to the current level of vapor pressure exceeding or being below the first preset threshold pressure level, signaling a flow control mechanism that modulates a flow rate of the condensation fluid through the condenser to increase or decrease the rate of flow from a current rate of flow. The controller receives the signal by a pressure sensor within the immersion cooling tank detecting the current vapor pressure, generating the signal and forwarding the signal to the controller. The pressure sensor can be a differential pressure transducer that measures a differential pressure internal to and outside of the immersion tank.

Abstract: Systems and methods for autotuning a HVAC system controller. The method may include receiving a performance coefficient and providing a step-input using an autotuner relay to measure ultimate gain and ultimate period in a controlled HVAC system. The method may also include adjusting the ultimate gain and ultimate period to account for a relay hysteresis, and applying a tuning rule to derive a proportional gain and an integral time for a controller of the HVAC system control loop. The method may further include updating the controller with the proportional gain and integral time, and verifying the proportional gain and integral time. Verifying the proportional gain and integral time may include setting a performance envelope having a tightness related to the performance coefficient, applying a step-input to provoke a closed-loop response, and comparing the closed loop response with the performance envelope to determine whether the closed-loop response is within the envelope.

Abstract: An air conditioning control device of a vehicle in which an air conditioner for adjusting a temperature in a cabin is mounted is provided. The air conditioning control device includes a setting portion, a detector, and an electronic control unit. The setting portion is configured to set an execution schedule of pre-air conditioning that the air conditioner is actuated before a user gets in a vehicle. The detector is configured to detect boarding on the vehicle. The electronic control unit is configured to actuate the air conditioner in accordance with the set execution schedule of the pre-air conditioning, and is also configured to notify the user about execution of the pre-air conditioning when the boarding of the user on the vehicle is detected after the air conditioner is actuated in accordance with the set execution schedule of the pre-air conditioning.

Abstract: Condenser systems for vehicle air conditioning systems and processes for controlling condenser systems are disclosed. The condenser systems include a plurality of fans that can be activated and/or deactivated based on a load indicating parameter of the heat transfer circuit of the air conditioning system.

Abstract: A helium management control system for controlling the helium refrigerant supply from a common manifold supplies cryogenic refrigerators with an appropriate helium supply. The system employs sensors to monitor and regulate the overall refrigerant supply. An appropriate supply of helium is distributed to each cryopump. If the total refrigeration supply exceeds the demand, or consumption, excess refrigerant is directed to cryogenic refrigerators which can utilize the excess helium to complete a current cooling function more quickly. If the total refrigeration demand exceeds the total refrigeration supply, the refrigerant supply to some or all of the cryogenic refrigerators will be reduced accordingly so that detrimental or slowing effects are minimized based upon the current cooling function.

Abstract: An air conditioning system of data center using heat pipe includes a cooling room that allows air within the data center to be drawn in by a first fan and circulated and fed back to the data center; a heat radiation room located separately from the cooling room; a heat pipe installed such that evaporator and condenser are located in the cooling room and heat radiation room, respectively; a sprayer installed in the heat radiation room and provided with a plurality of spray nozzles for spraying cooling fluid to the condenser; a cooling unit installed in the cooling room and cooling the air that passed the evaporator through heat exchange; dry bulb temperature measurement unit and wet bulb temperature measurement unit; and a control unit that receives the detection signal from the dry and wet bulb temperature measurement units and controls the sprayer and the cooling unit.

Abstract: Embodiments of the present invention disclose a liquid cooling apparatus, which includes a cold plate (202), a fast connector (204), and a first interface (2011), where the fast connector (204) includes a first connector (2041) and a second connector (2042), where the first connector (2041) is fixedly connected to the cold plate (202); the first interface (2011) is configured to connect to a second interface (2012) corresponding to the first interface; and the liquid cooling apparatus further includes a guide rail (203), where the guide rail (203) is a moving rail of the second connector (2042), and when the first connector (2041) and the second connector (2042) are in a connected state and the second connector (2042) is located at an end on the guide rail (203) that is close to a board (201), a distance between the first interface (2011) and the second interface (2012) is greater than 0.

Abstract: A secondary pump-type heat source system includes: heat sources connected in parallel; a load system in which the heat source water flows; a primary pump supplying the heat source water to the load system; a secondary pump provided for each heat source and supplies the heat source water subjected to heat exchange in the load system to the heat source; and a heat source controller calculating flow quantity of the heat source water flowing in the heat source side and flow quantity of the heat source water flowing in the load system side by assigning a result from measurement by a water temperature sensor detecting heat source temperature to an operating characteristic of each heat source and controlling operation of the secondary pumps based on the calculation result.

Abstract: An integrated cooling system comprises a first cooling circuit including a first heat exchanger that cools a first cooling medium by a core portion arranged between an inlet tank and an outlet tank; a second cooling circuit including a second heat exchanger installed in the outlet tank to cool a second cooling medium by the first cooling medium, a pressure of the second cooling medium of the second heat exchanger being higher than that of the first cooling medium, in which at a power position that can secure in the first cooling circuit a minimum necessary amount of the first cooling medium for functioning the first cooling circuit, there is provided a fragile portion that is broken when applied with a pressure equal to or larger than a predetermined level thereby to permit communication between the interior and the outside of the outlet tank.

Abstract: The disclosure describes a non-condensable gas collection, detection, and removal system for a WHR system that helps to maintain cycle efficiency of the WHR system across the life of an engine system associated with the WHR system. A storage volume is configured to collect non-condensable gas received from the working fluid circuit, and a release valve is configured to selectively release non-condensable gas contained within the storage volume.

Abstract: A process analytic device includes an input to receive a sample of interest and an analytic detector operably coupled to receive the sample of interest. An analytic output is provided relative to the sample of interest. A plurality of heat pipes is thermally coupled to the analytic detector.

Abstract: A reservoir unit which is included as an element along a circulation path of a cooling system includes a cartridge and a cartridge loading unit which are configured to be removable from each other. The cartridge includes a reservoir chamber that stores a circulating liquid, and a connection portion in fluid communication with the reservoir chamber. The cartridge loading unit includes a connection receiving portion, to which the connection portion is connected, and a connection port. When the cartridge and the cartridge loading unit are attached to each other, the connection portion, the connection receiving portion and the connection port form a feed path that allows feeding the circulating liquid to the circulation path outside, and a collection path that allows collecting the circulating liquid into the reservoir chamber.

Abstract: In one embodiment, a system includes a telecom utility cabinet and an air-based geothermal cooling system for the telecom utility cabinet. The system also includes a leak detector for the air-based geothermal cooling system. In another embodiment, a method includes detecting a leak in an air-based geothermal cooling system. The method also includes activating a liquid pump for the air-based geothermal cooling system in response to the leak detection.

Abstract: Battery systems, battery modules, and a method for cooling a battery module are provided. The battery module includes a battery cell having a first side and a second side, and a first graphite sheet disposed on the first side of the battery cell that conducts heat energy from the battery cell into the first graphite sheet to cool the battery cell. The battery module further includes a first cooling manifold coupled to the first graphite sheet that conducts heat energy from the first graphite sheet into the first cooling manifold. The first cooling manifold is further configured to receive a fluid that flows therethrough to conduct heat energy from the first cooling manifold into the fluid.

Abstract: Example methods, apparatus and articles of manufacture to detect impurities in flow-through water heaters are disclosed. An example apparatus includes a flow-through water heater having a conduit to conduct a fluid flowing therethrough, a heating element extending around at least a portion of the conduit, and first and second temperature measuring elements to determine respective first and second temperatures at different locations on the conduit; and a computing unit to at least detect an impurity deposit in the conduit based on a difference between the first and second temperatures.

Abstract: A rear door heat exchanger includes a door frame have opposing first and second edges, a fluid supply manifold secured along the first edge of the door frame, a fluid return manifold secured along the second edge of the door frame, a fin tube assembly including a plurality of fin tubes extending across a central region of the rear door heat exchanger and forming an air flow pathway through the fin tube assembly, and an actuator for controllably moving the fin tube assembly between retracted and extended positions. The rear door heat exchanger further comprises a plurality of supply pipe coupling assemblies and a plurality of return pipe coupling assemblies, each pipe coupling assembly providing fluid communication between one of the manifolds and one of the fin tubes.