Abstract: Various embodiments include a method of controlling heat exchange via a terminal unit of a terminal-side circuit of a system for HVAC with a source-side circuit coupled to the terminal-side circuit comprising: reading a terminal-side supply temperature signal; producing a supply temperature from the terminal-side supply temperature signal; estimating a percentage demand signal as a function of the supply temperature; estimating an actual demand for power by rescaling a value of maximum available power by the percentage demand signal; comparing the actual demand for power to the value of maximum available power; and if the actual demand for power exceeds the value of maximum available power: producing a first flow control signal based on the value of maximum available power; and controlling a flow of a fluid through the source-side circuit based on the first flow control signal.

Abstract: A fan module including a first body, a second body, a first fan assembly, a power module, and a second fan assembly is provided. The second body is slidably disposed at the first body to form a circulation space together. The first fan assembly is rotatably disposed at the first body and has sliding grooves. The power module is disposed in the first body and connected to the first fan assembly. The second fan assembly is rotatably disposed at the second body and has sliding portions, respectively and slidably disposed in corresponding sliding grooves. The power module is adapted to drive the first and second fan assemblies to rotate relative to the first body. A link module is adapted to drive the first and second bodies to relatively slide along an axial direction, so that the first and second fan assemblies are relatively separated or overlapped along the axial direction.

Abstract: A heat exchanger system includes a core structure with an oil flow path configured to receive an oil flow. The heat exchanger system also includes a fuel flow path included in the core structure and configured to receive a fuel flow. The fuel flow path is coupled to the oil flow path to allow the fuel flow to receive heat from the oil flow in the oil flow path. Also, the heat exchanger system includes a supplemental airflow path defined at least partly by the core structure and configured to receive a supplemental airflow that receives heat from at least one of the oil flow and the fuel flow.

Abstract: A heat exchanger assembly includes a first internal flow path configured to channel a flow of fluid to be cooled from a first inlet to a first outlet. The heat exchanger assembly also includes a second internal flow path configured to channel a flow of a first coolant from a first inlet to a first outlet. The heat exchanger assembly further includes an external flow path configured to receive a flow of a second coolant proximate a surface of the external flow path.

Abstract: An incubator assembly includes an incubator enclosure having an internal chamber in which a controlled environment is maintained and which is defined by one or more walls. The incubator assembly further includes a jacket assembly mounted adjacent to at least one of the walls and having an internal airspace in which an internal fluid is enclosed for maintaining a homogenous temperature within the internal chamber. The jacket assembly further has a vent movable between a plurality of positions including an open position in which the internal fluid is allowed to exit the internal airspace into an ambient environment.

Abstract: A heat exchanger for exchanging heat between first and second duct portions of a ventilation system includes first and second heat pipe portions in the first and second duct portions, respectively. Each heat pipe portion can be a heat pipe subassembly including one or more vertical heat pipes fluidly coupled to top and bottom headers, which are respectively connected to the top and bottom headers of the other subassembly to form a refrigerant loop. One or more flow restrictors can block air flow through a respective section of the first or second duct portion. The blocked section can be operatively aligned with a segment of the respective heat pipe portion along which there is a low probability of refrigerant phase change. Each flow restrictor can be an adjustable damper. The damper(s) can be selectively opened and closed as the ventilation system switches between heating and cooling modes.

Abstract: The invention relates to an active aerodynamic system (1) for vehicles which comprises a moulded plastics structure (2) arranged to receive movable elements (3; 4) and an actuator (7) off-centre with respect to the structure (2). The system (1) of the invention comprises a force transmission member (5) which connects series of movable elements (3; 4) to each other. The force transmission member (5) also makes it possible to distribute the forces within the system (1).

Abstract: An air-cooled condenser system for steam condensing applications in a power plant Rankine cycle includes an air cooled condenser having a plurality of interconnected modular cooling cells. Each cell comprises a frame-supported fan, inlet steam header, outlet condensate headers, and tube bundle assemblies having optionally finned tubes extending between the headers. The tube bundle assemblies may fabricated into an A-shaped tube structure. The tube bundles are self-supporting without support from any part of the frame between top and bottom tubesheets of each bundle. The condensate headers may be slideably mounted to the frame for thermal expansion/contraction. Steam circulating in a closed flow loop on the tube side from a steam turbine is cooled in each cell by ambient air blown through the tube bundles, thereby forming liquid condensate returned to the Rankine cycle. The present design further provides a longitudinal and vertical thermal expansion restraint system.

Abstract: A server includes a case, a mounting frame, a heating element, a connecting plate, and a cooling mechanism. The heating element, the connecting plate, and the cooling mechanism are mounted on the mounting frame. The heating element is detachably mounted on the connecting plate. The cooling mechanism is coupled to the heating element. The mounting frame is detachably mounted in the case. The connecting plate includes a plug portion configured to plug with an operating mechanism mounted in the case.

Abstract: Methods and systems are providing for improving engine coolant level estimation to reduce engine overheating. The level of fluid in a coolant overflow reservoir is inferred based on the fluid level in a hollow vertical standpipe fluidically coupled to the reservoir at top and bottom locations, while the fluid level in the standpipe is estimated based on echo times of an ultrasonic signal transmitted by a sensor positioned in a recess at the bottom of the vertical standpipe. Engine power is limited differently based on distinct coolant level states determined based on a change in level of coolant in the reservoir over a duration.

Abstract: Underwater systems for data center cooling and water desalination are provided. Aspects of the systems include a data center subunit and a desalination subunit that are co-located with each other at an underwater location, where the desalination subunit is configured to receive warm water output from the data center. Aspects of the invention also include methods for cooling a data center and desalinating water using underwater systems as described herein.

Abstract: System and methods are provided for improving fuel economy, and providing optimized operating conditions associated with a vehicle's air-conditioning system when the vehicle is carrying a load, e.g., towing a trailer. Operating conditions including, for example, air-mix setting, coolant temperature, ambient temperature, vehicle speed, and whether or not the vehicle is carrying the aforementioned load, may be considered when determining whether or not to activate or deactivate a vehicle heating element, such as a positive temperature coefficient (PTC) heater, steering wheel heater, etc.

Abstract: An electronic vehicle includes a power electronic component; a cooling water storage unit receiving cooling water capable of cooling the power electronic component; and a vehicle charging connection unit connected to an external cable at an external charger-side thereof and disposed on a path through which the cooling water is circulated. The circulating cooling water cools the vehicle charging connection unit.

Abstract: The invention relates to a compressor system for generating compressed air. It comprises a drive, a driven compressor, a lubricant cooler, a compressed air cooler and a blower unit. The blower unit has at least two blowers that can be controlled independent of one another, which convey cooling air to first and second cooling chambers that are separated from one another, wherein the first cooling chamber conveys the cooling air to the lubricant cooler, and the second cooling chamber conveys the cooling air to the compressed air cooler. The lubricant cooler and the compressed air cooler have an arrangement that is offset to one another in such a way that the axes of their inflow and outflow flanges, arranged on their lateral walls, are located in different planes. The invention also relates to a method for operating a compressor system that generates compressed air, wherein at least two control signals that are independent of one another are provided for two blowers.

Abstract: A heat-exchanger device for an aircraft engine, having a fuel-oil heat exchanger for exchanging heat between fuel and oil, and a housing with an air inlet and an air outlet, wherein the fuel-oil heat exchanger is arranged at least partially within the housing such that air flowing from the air inlet to the air outlet can flow over or around the fuel-oil heat exchanger. The invention further relates to a method for operating an aircraft engine.

Abstract: A heat exchange system for a vehicle includes: a first cooling circuit (L1-1, L1-2) is configured to cool an internal combustion engine a second cooling circuit (L2-1, L2-2) is configured to cool a driving electric motor outputs a driving force; a first heat exchanger (106) is configured to exchange heat between the first cooling circuit and the second cooling circuit; a first sensor (151) is configured to detect a temperature of the first cooling circuit; a second sensor (152) is configured to detect a temperature of the second cooling circuit; and a controller (155) is configured to execute control of performing heat exchange between a coolant in the first cooling circuit and a coolant in the second cooling circuit using the first heat exchanger when the temperature detected by the first sensor is lower than the temperature detected by the second sensor.

Abstract: A system includes a gearbox having an external surface; a fan or impeller constructed to generate a first cooling airflow when rotated; a shroud operative to guide and discharge the first cooling airflow over the external surface and cool the gearbox, wherein at least a portion of the shroud is spaced apart from the gearbox and disposed radially outward of the external surface; and a flow entrainment structure coupled to the gearbox and/or the shroud, wherein the flow entrainment structure is constructed to entrain a second cooling airflow and combine the second cooling airflow with the first cooling airflow to form a combined cooling airflow directed across the external surface to cool the gearbox.

Abstract: The present invention is directed to a load bearing direct-drive system for driving a fan in a cooling system such as a wet-cooling tower, air-cooled heat exchanger, HVAC system, hybrid cooling tower, mechanical tower or chiller system. The present invention includes a variable process control system that is based on the integration of key features and characteristics such as tower thermal performance, fan speed and airflow, motor torque, fan pitch, fan speed, fan aerodynamic properties, and pump flow. The variable process control system processes feedback signals from multiple locations in order to control a high torque, low variable speed, load bearing motor to drive the fan.

Abstract: For operating a thermal energy exchanger (1) for exchanging thermal energy between a thermal transfer fluid and air, a plurality of measurement data sets are recorded in a control system (40). The measurement data sets include for a different point in time data values which define a normalized energy transfer that represents the thermal energy transferred in the thermal energy exchanger (1) normalized by one or more normalization variables. The control system (40) calculates for each of the measurement data sets a normalized data point defined by the normalized energy transfer. The control system (40) further determines for the thermal energy exchanger (1) a characteristic energy transfer curve which fits the normalized data points. Normalizing the energy transfer makes it possible to operate the thermal energy exchanger (1) more efficiently over a wider range of changing conditions, as saturation can be prevented using more appropriate fixed or variable thresholds.

Abstract: An HVAC system for a building includes a heat exchanger configured to transfer heat from a chilled fluid circuit to a cooling tower circuit to provide cooling for a chilled fluid in the chilled fluid circuit, a cooling tower configured to remove heat from the cooling tower circuit to provide cooling for a coolant in the cooling tower circuit, one or more pumps configured to circulate the coolant between the cooling tower and the heat exchanger via the cooling tower circuit, and a free cooling controller. The controller is configured to determine an optimal flowrate of the coolant in the cooling tower circuit, determine an optimal flowrate of air through the cooling tower, and operate the one or more pumps and the cooling tower to achieve the optimal flowrate of the coolant in the cooling tower circuit and the optimal flowrate of the air through the cooling tower.

Abstract: A vaporizer apparatus for vaporizing liquefied natural gas (LNG) into vapor-phase natural gas for injection into an oil or gas well, comprises a blower assembly, a burner section, a heat exchanger section, and at least one flammable gas concentration sensor. The blower assembly comprises a primary blower configured to move air along an air flow path through the vaporizer apparatus and a flame arrestor configured to allow passage of the air into the vaporizer apparatus and impede passage of a flame out of the vaporizer apparatus. The burner section comprises an enclosure having an upstream end coupled to the blower assembly and a downstream end, and a burner inside the enclosure and in the air flow path for heating the air.

Abstract: Disclosed are processes and systems for producing polyether polyols and for the recovery of heat generated during such polyether polyol production.

Abstract: A conduit system for a gas turbine engine includes, a heat exchanger configured to cool fluid flowing therethrough having an inlet and an outlet, at least one by-pass in operable communication with the heat exchanger that is configured to allow fluid to exit the heat exchanger before reaching the outlet, and a conduit that is in fluidic communication with the outlet and the at least one by-pass.

Abstract: A system according to the principles of the present disclosure includes a transmission fluid temperature sensor and a coolant valve control module. The transmission fluid temperature sensor measures a temperature of transmission fluid that is circulated through a transmission. The coolant valve control module controls at least one coolant valve to adjust coolant flow from an engine to a transmission fluid heat exchanger and at least one of a radiator, an engine oil heat exchanger, and a heater core. When the transmission fluid temperature is less than a first temperature, the coolant valve control module controls the at least one coolant valve to allow coolant flow from the engine to the transmission fluid heat exchanger and prevent coolant flow from the engine to the at least one of the radiator, the engine oil heat exchanger, and the heater core.

Abstract: An underwater assembly includes a flow control device and an actuator coupled to the flow control device, where the actuator is configured to actuate the flow control device. The underwater assembly further includes an insulated housing surrounding the flow control device and the actuator, where the insulated housing is configured to retain heat. The underwater assembly also includes a thermal control system comprising a heat exchanger configured to control a temperature of the actuator.

Abstract: In order to achieve a reduction in energy consumption in a cooling water supply device without using a database, an equipment control device (70a) of a cooling water supply device: uses the load of a chiller, and a cooling water outlet temperature lower limit setpoint determined in accordance with the set temperature for the cooling water outlet of the chiller, to set a cooling water inlet temperature lower limit setpoint; sets, as the cooling water inlet temperature setpoint, the higher of the lower limit setpoint and the cooling water inlet temperature lower limit value as determined from the outside wet-bulb temperature; and generates a control command for a cooling tower fan and a control command for the cooling water flow volume, so as to match the cooling water inlet temperature and the cooling water outlet temperature respectively with the cooling water inlet temperature setpoint and the cooling water outlet temperature lower limit setpoint which have been set.

Abstract: A data center cooling system includes a server rack frame assembly that includes a plurality of bays defined along a lengthwise dimension of the frame assembly, each bay including a volume defined at least in part by a specified height that is orthogonal to the lengthwise dimension and a specified width that is parallel to the lengthwise dimension and sized to at least partially enclose at least one server rack configured to support a plurality of data center computing devices; and at least one cooling unit sized for a bay of the plurality of bays of the server rack frame assembly and configured to circulate a heated airflow from an open back side of the at least one server rack, cool the heated air, and circulate a cooling airflow through an open front side of the at least one server rack.

Abstract: Provided is a configuration where a stator section is fastened to an electric motor part-accommodating portion at a location where an end surface of the stator section projects outwardly from an end plane of an opening of an electric motor part-accommodating portion thereby bringing the center of gravity of an electric motor part closer to the end plane of the opening of the electric motor part-accommodating portion. With this, the center of gravity of the electric motor part is brought closer to the end plane of the opening of the electric motor part-accommodating portion so as to make a rotor section difficult to receive the influence of oscillations, and consequently a phenomenon where the rotor section is shaken under the influence of oscillations can be restrained.

Abstract: A cooler includes an estimator. The estimator is configured to estimate a coolant temperature from a measurement value of the temperature sensor. The estimator is configured to determine a difference by subtracting an immediately preceding measurement value from a current measurement value, determine a correction value from the difference, and output an estimated value of the coolant temperature. The estimated value is obtained by adding the correction value to the current measurement value. The correction value is obtained by multiplying a gain by the difference. The gain is determined from a time constant, the gain is determined according to a flow rate of the coolant. The time constant is obtained when a transfer function of heat transferred from the coolant to the temperature sensor is modeled as a first order lag system.

Abstract: A method of controlling an air conditioner including a compressor, an outdoor heat exchanger, an expansion valve and an indoor unit, includes detecting an indoor temperature and an outdoor temperature and checking an indoor load and an outdoor load when an operation command is input, determining an operation frequency of the compressor and a degree of opening of the expansion valve based on the checked indoor load and the outdoor load, driving the compressor at the determined operation frequency and opening the expansion valve to the determined degree of opening, thereby supplying a refrigerant to an indoor heat exchanger having a first cooling panel and a second cooling panel disposed parallel to each other, controlling a rate of rotation of each of the indoor fans based on the operation frequency of the compressor and the degree of opening of the expansion valve.

Abstract: An electronic device rack includes a plurality of panels surrounding a first space. Moreover, the electronic device rack includes: an electronic-device housing unit disposed in the first space and configured to house electronic devices; a heat exchanger disposed in the first space at a position away from the electronic-device housing unit; a second space provided between the electronic-device housing unit and the heat exchanger and isolated from the rest of the first space; and an air blower configured to circulate air inside the first space through the electronic-device housing unit, the second space, and the heat exchanger in the described order.

Abstract: A power supply includes an electrical component having at least one pin extending a first distance from a body portion of the electrical component to a circuit board. The power supply also includes a heat sink coupled to the body portion of the electrical component and extending substantially parallel to the at least one pin for approximately the first distance from the body portion to the circuit board. In one embodiment, the at least one pin of the electrical component is not trimmed during assembly of the power supply. In another embodiment, the power supply includes a heat sink hanging over an edge of the circuit board. Moreover, in certain embodiments, a transformer lead is coupled to a diode using a fastener.

Abstract: An apparatus including a refrigerant circuit having a compressor, a heat source side heat exchanger and two or more heat exchangers related to heat medium. A heat medium circuit includes two heat medium loops each including a pump. A bypass piping is provided at the refrigerant circuit for bypassing the heart exchanger related to heat medium. A controller is configured to perform a defrosting operation, a heating operation, a heat recovery defrosting operation mode, and a bypass defrosting operation that melts frost attached to the heat source side heat exchanger during the heating operation mode by passing a portion or all of the heat source side refrigerant through the bypass piping.

Abstract: A heater jacket for a fluid line including a tube having an inner surface and an outer surface; a spacer disposed within the tube between the inner surface and the fluid line; and wherein the spacer includes a hole for receiving the fluid line therein and spaces the fluid line from the tube inner surface.

Abstract: An air-conditioning apparatus includes at least a use side heat medium flow control device and a heat medium flow switching device disposed in an outlet side of the heat medium passage of a use side heat exchanger, and a heat medium backflow prevention device disposed in an inlet side of the heat medium passage of a use side heat exchanger.

Abstract: An air-conditioning apparatus including a bypass pipe that branches off from a portion of a refrigerant pipe located at the refrigerant inlet side of a plurality of heat medium heat exchangers. The bypass pipe connects the refrigerant inlet side with a refrigerant outlet side of each of the plurality of heat medium heat exchangers in the cooling only operation mode. A flow switching device, disposed in the refrigerant pipe, on the outlet side of each of the plurality of heat medium heat exchangers and another flow switching device, disposed in the bypass pipe, on the refrigerant outlet side of each of the plurality of heat medium heat exchangers, cause refrigerant to flow in the bypass pipe in the cooling only operation mode.

Abstract: A condenser assembly through which a refrigerant is circulated to transfer heat from the refrigerant to ambient air in which the condenser assembly is at least partially disposed. The condenser assembly includes a compressor, a crankcase heater energizable via a crankcase heater control circuit, a condenser, a condenser fan, and an electronically commutated condenser fan motor. The condenser assembly also includes an ambient temperature sensor for sensing at least one temperature of the ambient air, to provide a sensed temperature. The condenser assembly includes a condenser switch subassembly configured to control energization of the crankcase heater and the condenser fan motor. The condenser switch subassembly is controlled by the ambient temperature sensor. The condenser fan motor is controlled by a condenser fan controller that applies a first voltage or a second voltage to the condenser fan motor depending on whether a third conductor attached to the motor is energized.

Abstract: Described is a method for cutting a pipe (2) made from thermoplastic material, comprising the steps of localized and circumferential heating of an axial portion (3) of the pipe (2) at a predetermined operating temperature and processing, using a cutting tool (4), the heated axial portion (3).

Abstract: Apparatus for orientating a user in a space wherein the space comprises a plurality of zones of which only certain zones constitute functional zones wherein each functional zone includes a first type device containing information relating to the position of the zone in the space and wherein the first type device is reactive to the presence of a second type device associated with the user to provide the user with the information to determine the orientation of the user in the space. A method of orientating the user within the space and guiding the user toward one or more features in the space is also disclosed.

Abstract: An electric grill shutter control device includes: a control portion that performs an energization of a motor that drives a movable member that configures the electric grill shutter; a detection portion that detects a rotational speed of the motor; a determination portion that determines whether locking of the movable member is occurred based on whether the energization is performed and the rotational speed; and an identification portion that obtains a rotation amount of the motor in a period around the locking from the rotational speed in a case where the locking occurs and identifying a cause of the locking according to the rotation amount and the energization.

Abstract: A method for controlling the temperature in a polymerization reactor equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat-exchanger, which is cooled by a cooling medium, which is conveyed in a cooling system through the heat-exchanger, and feeding the reactor gas back to the reactor by adjusting the temperature of the cooling medium entering the heat exchanger, wherein the temperature of the cooling medium entering the heat exchanger is controlled by adjusting the flow rate of the cooling medium in a part of the cooling system by a flow control system comprising two continuously operating flow control devices of different size, which are connected in parallel, a process for polymerizing olefins and a process for controlling the flow rate of a fluid medium.

Abstract: Method of controlling a variable delivery pump fitted to a heating system comprising: a heat exchanger connected to two circuits of fluids, the variable delivery pump making it possible to vary the flow-rate of the first fluid inside the heat exchanger; a return loop on the primary circuit allowing the first fluid reaching the input of the heat exchanger to mix with a portion of the first fluid coming from the output of the exchanger; a first temperature sensor measuring a temperature of the second fluid coming from the secondary circuit; a second temperature sensor measuring a temperature of the first fluid coming from a primary circuit; a control unit electrically connected to the first and second temperature sensors, the sensors generating electrical signals as functions of the temperatures and constituting electrical input signals of the control unit.

Abstract: Method of controlling a variable delivery pump fitted to a heating system comprising: a heat exchanger connected to two circuits of fluids, the variable delivery pump making it possible to vary the flow-rate of the first fluid inside the heat exchanger; a return loop on the primary circuit allowing the first fluid reaching the input of the heat exchanger to mix with a portion of the first fluid coming from the output of the exchanger; a first temperature sensor measuring a temperature of the second fluid coming from the secondary circuit; a second temperature sensor measuring a temperature of the first fluid coming from a primary circuit; a control unit electrically connected to the first and second temperature sensors, the sensors generating electrical signals as functions of the temperatures and constituting electrical input signals of the control unit.

Abstract: An aircraft cooling system including a cooler which is adapted to supply cooling energy to an aircraft device to be cooled, and a heat transfer arrangement which is adapted to transfer waste heat generated by the cooler to a cabin air extraction system. The heat transfer arrangement comprises a heat transfer circuit, in which a liquid heat transfer medium heated by the waste heat of the cooler circulates.

Abstract: A method and system for providing a heat sink assembly are described. The assembly includes a two-phase heat sink, a condenser, and a pump. The two-phase heat sink may include flow micro-channels that accommodate the flow of boiling coolant and cross-connect channel(s) that at least partially equilibrate a pressure field for the boiling coolant. The condenser receives coolant from the heat sink and removes heat. The pump drives coolant through the assembly. In one aspect, the assembly is a closed system for the coolant. In another aspect, the condenser includes first and second plates and a heat exchange surface there between. Coolant flows from the heat sink and through the plates. The gaseous coolant passes the heat exchange surface. In one aspect the gaseous coolant flows opposite to the direction coolant flows. In one aspect, at least one of the plates includes dummy channel(s) for insulating part of the plate(s).

Abstract: A co-fired generator for use in a continuous-cycle absorption heating and cooling system may provide heat to the interior of an annulus chamber from a first heat exchanger, such as a firetube heat exchanger, supplemented by heat to the exterior of the annulus chamber from a second heat exchanger containing fluid heated by an external source. Some embodiments may circulate fluid heated in a solar-heated collector through the second heat exchanger. Other embodiments may route exhaust gas from a combustion engine through the second heat exchanger. The second heat exchanger may be provided with a plurality of fins to increase the surface area available for thermal transfer between the heated fluid and the annulus chamber.

Abstract: A reductant delivery system is provided for delivery of reductant to an engine exhaust aftertreatment system that is heated during cold temperature conditions. A heat exchange fluid flows through a heat exchange circuit that provides a flow path from the heat source to the doser, from the doser to the reductant storage tank, and from the reductant storage tank to the heat source. A control valve controls the flow of the heat exchange fluid in the heat exchange circuit so that at least one heat exchange cycle includes a circulation period that increases the temperature of the reductant in the doser and storage tank and a termination period where circulation is stopped until reductant temperature in the doser reaches a lower limit.

Abstract: A heat exchanger for a vehicle includes a heat radiating portion including first and second connecting lines formed alternately by stacking a plurality of plates, and receiving first and second operating fluids therethrough that heat-exchange with each other while circulating unmixed through the respective first and second connecting lines, a bifurcating portion connecting an inflow hole for flowing one of the first and second operating fluids with an exhaust hole for exhausting the one operating fluid to bypass the heat radiating portion according to a temperature of the one operating fluid, and a valve unit mounted at the inflow hole to selectively open one of the connecting lines by expansion and contraction of deformable material so as to flow the operating fluid selectively to the heat radiating portion or the bifurcating portion according to a temperature of the one operating fluid flowing into the inflow hole.

Abstract: In certain embodiments, a system for killing pests in an affected area includes a heat exchanger unit and an electric heater. The heat exchanger unit is placed within the affected area and is coupled to a faucet. The heat exchanger unit is configured to receive a flow of water from the faucet and to emit heated air by transferring heat from the flow of water to air flowing through the heat exchanger unit. The electric heater further heats the air emitted by the heat exchanger unit to a target temperature greater than 120 degrees Fahrenheit.

Abstract: A method is provided which includes providing a coolant-conditioning unit which includes a facility coolant path, having a facility coolant flow control valve, and a system coolant path accommodating a system coolant, and having a bypass line with a system coolant bypass valve. A heat exchanger is coupled to the facility and system coolant paths to facilitate transfer of heat from the system coolant to facility coolant in the facility coolant path, and the bypass line is disposed in the system coolant path in parallel with the heat exchanger. A controller automatically controls a regulation position of the coolant bypass valve and a regulation position of the facility coolant flow control valve based on a temperature of the system coolant, and automatically adjusts the regulation position of the system coolant bypass valve to facilitate maintaining the facility coolant flow control valve at or above a specified, partially open, minimum regulation position.