Abstract: A heating, ventilation, and air conditioning (HVAC) system for regulating humidity of an enclosed space. The HVAC system includes an evaporator coil. A metering device is fluidly coupled to the evaporator coil. A variable-speed compressor is fluidly coupled to the condenser coil and the evaporator coil and a controller is operatively coupled to the variable-speed compressor. A humidity sensor is operatively coupled to the controller and exposed to the enclosed space. Responsive to a determination that the relative humidity of the enclosed space exceeds the maximum humidity threshold, the controller adjusts a speed of the variable-speed compressor to increase latent capacity of the HVAC system. Responsive to a determination that the relative humidity of the enclosed space falls below the minimum humidity threshold, the controller adjusts a speed of the variable-speed compressor to decrease latent capacity of the HVAC system.

Abstract: An air conditioning system includes a heat pump unit including a radiator usable with a refrigerant, a gas furnace unit including a heating section arranged to heat passing air, a blower arranged to generate an air flow that passes through the radiator and the heating section, a first temperature sensor provided in a room, and a controller configured to control each action of the heat pump unit, the gas furnace unit, and the blower. The temperature sensor detects an indoor temperature in the room. The controller causes the gas furnace unit to operate as a heat source unit when a difference value obtained by subtracting the indoor temperature from a set temperature is equal to or greater than a first threshold at startup, and causes the heat pump unit to operate as a heat source unit when the difference value is less than the first threshold at startup.

Abstract: A heat exchanger includes a refrigerant flow path into which a gas refrigerant flows from two gas-side inlets in the second row, that are positioned off from each other. Refrigerant flow paths from the two gas-side inlets converge in the one end portion. The refrigerant flow path connects to a heat-transfer pipe in the first row from the second row. The refrigerant flow path includes a refrigerant flow path which is formed in a range from the same stage as one of the gas-side inlets of the second row to the same stage as the other of the gas-side inlets of the second row, while being arranged along both ways between the one end portion and the other end portion in the first row, and the refrigerant flow path extends to a liquid-side outlet.

Abstract: Flow devices and a methods for guiding flow are disclosed. The examples disclosed herein relate to a flow device (50) including a first line system (60) for conducting a first fluid flow (100), wherein the first line system (60) comprises a guide pipe (21) and at least one guide means (20, 22) influencing a flow direction of the fluid flow (100) such that the fluid flow (100) between an inflow region (61b) and an outflow region (62b) of the first line system (60) in a circulation-flow region (105) at a circumferential angle UW circulates in a radially encircling manner about an inflow axis (102) and/or an outflow axis (103). The examples disclosed herein furthermore relate to a method for guiding a fluid stream (10) which has an inflow portion (12) and an outflow portion (13) having substantially parallel, preferably coaxial inflow and outflow axes (14, 15).

Abstract: A system includes a front plate, first and second side plates extending from the front plate, a bridge heat sink coupled to and extending from the front plate between the side plates, and a heat pipe coupled to the front plate. The front plate defines a slot therethrough between the front and back sides. The first side plate includes a fin bank mounted on an outer side thereof. The bridge heat sink defines a fluid channel that is fluidly connected to the slot of the front plate. The fluid channel is configured to receive a first cooling fluid therein to dissipate heat from electronics packages that engage the bridge heat sink. The heat pipe extends to and at least partially through the fin bank. The heat pipe contains a second cooling fluid therein that transfers heat absorbed from the front plate to the fin bank for dissipating heat.

Abstract: An ice level sensor in an appliance that includes an ice storage housing and an ice maker. The housing receives ice from the ice maker. The ice level sensor includes a control circuit and one or more electrode arrays capable of detecting ice in the housing. The electrode arrays each contain one or more sense electrodes, and the control circuit detects ice in the housing based on a measurement of capacitance of the sense electrode(s). When the sensor detects that ice in the housing has reached a threshold level, the sensor can stop the ice maker from depositing more ice into the housing, to prevent overflow. The ice level sensor detects that ice has reached a threshold level by detecting changes in capacitance of a sense electrode or by detecting that the capacitance of a sense electrode reached a predetermined value.

Abstract: A gas turbine engine heat exchange system includes a first microchannel heat exchanger (MCHX) configured to transfer heat between a first air stream and a working fluid. The first MCHX includes a plurality of air-passage layers. Each of the air-passage layers includes a plurality of etched air-passage microchannels that are configured to allow passage of the first air stream therethrough. The first MCHX also includes a plurality of working fluid layers. Each working fluid layer includes a plurality of etched working fluid microchannels that are configured to allow passage of the working fluid therethrough.

Abstract: A water pocket with an open top side is filled with water, mounted in a regular position on a supporting frame, and tilts to supply the water stored in the water pocket to an ice making tray, thereby easily supplying a required amount of water to the ice making tray. A refrigerator includes an ice making tray provided to linearly move with rotation when ice of the ice making tray is separated, or includes a holding preventing member which prevents the ice from being caught by a lower ice making tray, thereby improving a forward-and-backward width of an ice maker. It is possible to easily withdraw ice stored in an ice bucket by pushing an ice discharge button in a state in which the ice bucket is not separated.

Abstract: A system comprising a compressor, a first valve coupled to the compressor and coupled to a first coil, a first expansion valve coupled to the first coil, a second coil, and a second expansion valve. The second expansion valve coupled to a third coil, a second valve coupled to the compressor and the third coil. A controller operable to operate the first valve, the first expansion valve, the second expansion valve, and the second valve. The second coil is coupled to the compressor and the refrigerant flows from the second coil to the compressor.

Abstract: A temperature controlled structure assembly comprises an array of structural panels each including at least one channel formed therein. At least one channel of each of the structural panels is aligned with at least one of the channels of an adjacent one of the structural panels to form a continuous channel extending through the array of the structural panels. At least one functional panel overlays the array of structural panels and is exposed for contact with a user. At least one heat exchanging element is disposed within the continuous channel and configured to exchange heat with the at least one functional panel in order to heat or cool the at least one functional panel.

Abstract: A heat exchanger includes: a heat transfer pipe in which refrigerant flows; and a spiral groove formed at an inner peripheral surface of the heat transfer pipe. A height of an inner wall of the groove in a radial direction of the heat transfer pipe is equal to or greater than 0.1 [mm], and when a wetted edge length of the heat transfer pipe is S, an inclination angle between a pipe axis direction of the heat transfer pipe and a longitudinal direction of the groove in a section of the heat transfer pipe parallel with the pipe axis direction is ?, and a length of the heat transfer pipe is L, the inclination angle ? is an acute angle, and a wetted area S×L/cos ? of the heat transfer pipe satisfies S×L/cos ??0.5 [m2].

Abstract: An evaporator for an absorption heat pump or a single coolant cooling process comprises a number of stacked plates provided with a pressed pattern to hold the plates on a distance from one another to form a heat exchanging strip, vapor leading spaces and outer walls, the heat exchanging strip being designed such that flow channels are formed by internal surfaces of the strip, said flow channels connecting a heat carrier inlet and a heat carrier outlet, wherein a coolant forms a falling film on external surfaces of the heat carrier channels by being provided above the heat carrier channels by a coolant inlet, wherein coolant being vaporized from the external surfaces by heat from a heat carrier flowing from the inlet to the outlet rapidly enters the vapor leading spaces. The vapor leading spaces are provided between the heat exchanging strip and the outer walls.

Abstract: A water temperature regulating valve (10) including a valve body (12) having a cavity (13) in which mixing of fluids can occur, and provided with a hot fluid (or heated water) inlet (18) adapted for communication with a source of hot (or heated) water, a cooled fluid inlet (16) adapted for communication with an apparatus that has used the mixed fluid for heating, a mixed fluid outlet (14) adapted for communication with an apparatus that uses the mixed fluid for heating, and a return fluid outlet (20) adapted for communication with the source of hot (or heated) water, all inlets and outlets also being in communication with the cavity (13) provided within the valve body (12), said cavity (13) being provided with an insert (24) in a sealing relationship with an inner surface of the said cavity (13), said insert (24) having a central bore (42) and also defining flow passages and being configured to direct the flows of hot fluid entering the cavity (13) via the hot fluid inlet (18) and cooled fluid entering the ca

Abstract: An ejector and a refrigeration cycle apparatus having an ejector are provided. The ejector may include an ejector body having an accommodation space therein, a suction portion through which a high pressure refrigerant and a low pressure refrigerant may be suctioned into the accommodation space, and a mixing portion configured to mix the high pressure refrigerant with the low pressure refrigerant; a nozzle provided in the ejector body, having a nozzle neck and an expansion portion, and configured to inject the high pressure refrigerant into the mixing portion; a first needle moveably provided at the expansion portion, and configured to control a flow sectional area of the expansion portion; a second needle moveably provided at the nozzle neck, and configured to control a flow sectional area of the nozzle neck; a first needle drive configured to drive the first needle; and a second needle drive configured to drive the second needle.

Abstract: A communication-type thermal conduction device includes a vapor chamber, at least one heat pipe, and at least one third capillary structure. The vapor chamber has a bottom board. A first capillary structure is disposed on an inner surface of the bottom board. A second capillary structure is disposed in the heat pipe. One end portion of the heat pipe is connected to the bottom board, and the end portion has an open portion in communication with the heat pipe and the vapor chamber. The second capillary structure has a connected portion exposed by means of the open portion. The third capillary structure is connected to the first capillary structure and the connected portion, so that the first and second capillary structures are in communication with each other. Accordingly, holistic thermal conduction can be achieved, and the vapor chamber incorporating the heat pipe can provide the desired heat dissipation effect.

Abstract: An air cleaning system for a vehicle includes: an air purification button generating an operation signal for purifying air in an interior of the vehicle; an inside air purification unit blocking air outside of the vehicle from being introduced into the interior of the vehicle and filtering and circulating air inside of the vehicle, when the air purification button is operated; a fog detection unit detecting a humidity of a window of the vehicle by detecting moisture on the window; and a controller controlling an operation of the inside air purification unit when the air purification button is operated and determining whether a defogging unit of the vehicle for removing the moisture on the window is to be operated based on a signal from the fog detection unit.

Abstract: A data center cooling system includes a modular heat sink and a working fluid. The modular heat sink includes an evaporator configured to thermally contact a heat-generating electronic device to receive heat from the data center heat-generating electronic device; a condenser coupled to the evaporator and configured to transfer the heat from the heat-generating electronic device into a cooling fluid; and a plurality of transport tubes that fluidly couple the evaporator and the condenser, at least one of the plurality of transport tubes including an open end positioned in the evaporator and a closed end positioned in the condenser. The working fluid vaporizes in the evaporator based on receipt of the heat from the heat-generating electronic device, and circulates, in vapor phase, from the evaporator to the condenser in the transport member, and circulates, in liquid phase, from the condenser to the evaporator.

Abstract: In a radiating structure for a main spindle having a tapered bore formed at a distal end of the main spindle, into which a tapered portion of a tool holder is mounted, a key fixing member provided with a drive key is fixed to the distal end of the main spindle, and the drive key is fit into a key groove formed in the tool holder. This configuration prevents a phase shift in rotation direction of the tool holder arising from rotation of the main spindle. A radiating member which exchanges heat with an ambient atmosphere is provided to the key fixing member provided with the drive key.

Abstract: Provided is an hybrid solar heat absorption cooling system comprising: an absorption refrigerator; a solar heat steam generator configured to generate steam using solar heat; a daytime steam supplying unit configured to supply steam generated by the solar heat steam generator during the day as a heat source for the absorption refrigerator; a daytime hot water storage tank configured to store hot water discharged from the absorption refrigerator during the day; a nighttime hot water supplying unit configured to supply hot water stored in the daytime hot water storage tank during the night as a heat source for the absorption refrigerator; a nighttime hot water storage tank configured to store hot water discharged from the absorption refrigerator during the night; and a daytime hot water supplying unit configured to supply hot water stored in the nighttime hot water storage tank during the day to the solar heat steam generator.

Abstract: An independent temperature and humidity processing air conditioning system driven by low-level thermal energy, comprising an absorption-type refrigeration circulation loop, a solution dehumidification and regeneration circulation loop, a water cooling circulation loop, and a central air conditioning air supply and air return pipeline; the absorption-type refrigeration circulation loop comprises an evaporator (21), an absorber (26), a generator pump (25), a second solution heat exchanger (27), a generator (1), a condenser (2), a water-water heat exchanger (3), and a throttle valve (20); the solution dehumidification and regeneration circulation loop comprises a regenerator (8), a first solution pump (9), a solution heater (10), a first solution heat exchanger (12), a second solution pump (16), a solution cooler (17), and a dehumidifier (18); the water cooling circulation loop comprises two branches; and the central air conditioning air supply and a return pipeline comprises an air supply pipeline (13), an air