Abstract: A refrigeration device includes a compression mechanism, a radiator, a first expansion mechanism, a liquid receiver, a second expansion mechanism, an evaporator, a pressure detector, a temperature detector, and a control unit. The pressure detector is provided between the refrigerant discharge side of the compression mechanism and the refrigerant inflow side of the first expansion mechanism. The temperature detector is provided between the exit side of the radiator and the refrigerant inflow side of the first expansion mechanism. The control unit controls the first expansion mechanism using the pressure detected by the pressure detector and the temperature detected by the temperature detector so that the refrigerant flowing out from the first expansion mechanism reaches a saturated state.

Abstract: An indoor unit for a multi-directional air supply air conditioner capable of performing at least a heating operation includes: an indoor fan (39) for sucking air in an axial direction thereof and radially blowing out the air; and a heat exchange part (38), connected in a refrigerant circuit (80) and disposed to surround the indoor fan (39), for exchanging heat between the air blown out of the indoor fan (39) and refrigerant in the refrigerant circuit (80). The heat exchange part (38) includes a plurality of heat exchangers (48) separated from each other along the direction of the perimeter thereof and connected in parallel with each other in the refrigerant circuit (80).

Abstract: An air conditioning apparatus includes a heat source unit, a first utilization unit, a second utilization unit, a refrigerant communication pipe and a control section. The heat source unit includes a heat source side compressor, a heat source side heat exchanger and a heat source side expansion mechanism. The first utilization unit includes a first utilization side compressor, a first utilization side heat exchanger and a first utilization side expansion mechanism. The second utilization unit includes a second utilization side compressor, a second utilization side heat exchanger and a second utilization side expansion mechanism. The control section is configured to control the first utilization side compressor and the first utilization side expansion mechanism in accordance with operation load of the first utilization unit, and to control the second utilization side compressor and the second utilization side expansion mechanism in accordance with operation load of the second utilization unit.

Abstract: An air conditioner is provided. The air conditioner includes a first temperature sensor configured to measure an indoor temperature during a heating operation, a second temperature sensor configured to measure a discharge temperature of a compressor, a valve provided at an outlet side of an indoor heat exchanger during the heating operation, and a controller configured to control an opening of the valve by comparing a temperature detected by the first temperature sensor with a temperature detected by the second temperature sensor.

Abstract: A method and a system of temperature-control for an electronic component are provided, in which a plurality of temperature sensors is disposed in each area of the electronic component. The temperature-control method includes obtaining a plurality of sensed temperature values; looking up a temperature-control table recording the relationship between a temperature-control threshold and a temperature-control operation set for each area; selecting the temperature-control operation corresponding to sensed temperature values greater than the temperature-control thresholds depending on the temperature-control table; and starting the temperature-control operation to make the sensed temperature values being lower than or equal to the temperature-control thresholds.

Abstract: The invention concerns a refrigeration system comprising a refrigerant circuit which comprises several evaporator paths and a distributor (5) which distributes the refrigerant on the evaporator paths. The aim of the invention is to improve the operation of said refrigeration system in a simple manner. According to the invention, the distributor (5) comprises a controllable valve (12) for each evaporation path.

Abstract: A reversible HVAC heating/cooling refrigerant system includes a novel valve system that allows an outdoor heat exchanger to function as a subcooler during a cooling or defrost mode and function as a receiver tank for storing excess liquid refrigerant during a heating mode. In the heating mode, a cooling expansion valve is kept slightly open to flood the subcooler with liquid refrigerant while a heating expansion valve is regulated to maintain a desired level of superheat at the suction side of the refrigerant system's compressor. The novel valve system also serves as a pressure relief valve to protect the subcooler from excess pressure caused by thermal expansion of liquid refrigerant trapped within the subcooler.

Abstract: The present invention relates to a no-frost refrigerator unit and/or freezer unit comprising a fan for the generation of an airflow in a compartment of the unit to be cooled, wherein the unit comprises detection means for the detection of at least one parameter as well as a control or regulation unit which is made such that it varies the speed of the fan in dependence on the at least one measured parameter.

Abstract: An electronic device cabinet includes a first temperature control system positioned to direct a conditioned airflow into a first electronic device storage zone of the cabinet and a second temperature control system positioned to direct a conditioned airflow into a second electronic device storage zone of the cabinet. The first temperature control system includes a first plurality of vortex tubes having a compressed air inlet and a first cooling air outlet that guides cooling air into the first device storage zone. The second temperature control system includes a second plurality of vortex tubes having a compressed air inlet and a second cooling air outlet that guides cooling air into the second device storage zone. A controller selectively delivers compressed air to respective ones of the first and second temperature control systems upon sensing a demand for cooling in corresponding ones of the first and second electronic device storage zones.

Abstract: A refrigeration device includes a compression mechanism, a radiator, a first expansion mechanism, a second expansion mechanism, an evaporator, a first internal heat exchanger, a branch pipe a third expansion mechanism, and a second internal heat exchanger. The first internal heat exchanger causes heat to be exchanged between refrigerant that flows from the radiator to the inflow side of the first expansion mechanism, and refrigerant that flows from the evaporator to the compression mechanism. The branch pipe branches from a third refrigerant pipe for connecting the radiator and the second expansion mechanism, and merges with the second refrigerant pipe. A third expansion mechanism is provided to the branch pipe. The second internal heat exchanger causes heat to be exchanged between refrigerant that flows out from the first expansion mechanism, and refrigerant that flows out from the third expansion mechanism.

Abstract: An inlet guide vane is installed at a suction port into which a fluid is sucked by the rotation of an impeller so as to be rotatable about an axis, and is comprised of a rod-like shaft supported by an inner peripheral surface of the suction port so as to be rotatable about the axis, and a plate-like vane body connected to the shaft and provided so as to protrude from the inner peripheral surface of the suction port. The vane body includes a tapered portion formed such that both side surfaces approach each other toward an outer edge of the vane body in its width direction and an outer edge thereof at a tip in the direction of the axis, and a parallel portion arranged on the axis and formed such that both the side surfaces are parallel to each other along the direction of the axis.

Abstract: A refrigeration device includes a control unit, and a refrigerant circuit in which a compression mechanism, a radiator, a refrigerant cooling unit, a first expansion mechanism, a liquid receiver, a second expansion mechanism, and an evaporator are connected in sequence. The control unit performs refrigerant cooling control whereby the refrigerant is cooled by the refrigerant cooling unit so that the state of the refrigerant that has flowed out from the first expansion mechanism is near the saturation line and not near the critical point.

Abstract: A detection and monitoring method and system which makes it possible to detect the presence of moisture problems when they manifest as abnormal humidity in one or more discrete ventilation zones within a building envelope. The abnormal humidity can then be investigated and resolved or mitigated to minimize the potential for building damage or adverse occupant health effects occur. The present invention provides an early warning system that will alert personnel of the occurrence of a moisture problem.

Abstract: A humidity control device (1) comprises: a processor (10) for dehumidifying air; a regenerator (30) for regenerating a hygroscopic liquid L used by the processor (10); a first hygroscopic-liquid pipe path (50) and a second hygroscopic-liquid pipe path (51) for circulating the hygroscopic liquid L between the processor (10) and the regenerator (30); and a heat pump (20) having an evaporator for cooling the hygroscopic liquid L to be used by the processor (10) and a condenser (22) for heating the hygroscopic liquid L flowing through the first hygroscopic-liquid pipe path (50). The regenerator (30) has: a first regeneration processing unit (31) and a second regeneration processing unit (34); a first tank (37) and a second tank (38) for containing the hygroscopic liquid L; and a heat source (44) for heating the hygroscopic liquid L to be supplied to the second regeneration processing unit (34).

Abstract: A thermal sensation determining apparatus includes a skin temperature detecting unit configured to detect a skin temperature of a peripheral site of a subject's body, a variation state determining unit configured to determine a variation state of the skin temperature during a first interval to obtain a variation state determination result, a gradient detecting unit configured to detect a gradient of the skin temperature during a second interval to determine the gradient to obtain a gradient detection result, and a thermal sensation determining unit configured to determine the subject's thermal sensation using the variation state determination result and the gradient detection result to obtain a thermal sensation determination result classified into levels ranging from “hot” to “cold” based on a “moderate” temperature.

Abstract: A galley cooling system comprises a plurality of galley cooling units each to be associated with separate galleys. A sensor senses a condition within each of the galleys. A control determines whether a sensed condition is indicative of efficient operation of a particular galley cooling unit, and the control is operable to decrease cooling capacity delivered to a galley cooling unit which is experiencing inefficient operation. An aircraft galley system incorporating the above cooling unit, and a method of operating a galley cooling unit are also disclosed and claimed.

Abstract: A system and method for reducing noise in an automotive heating, ventilation, and cooling system is described. A noise attenuation device using radial vanes upstream of a flow discontinuity, such as a bend in the ducting, and downstream of a blower fan is used to reduce noise.

Abstract: An HVAC remote controller for use in an HVAC system is described. In some instances, the HVAC remote controller may include a wirelessly interface for communicating with one or more HVAC controllers and/or other HVAC devices. The HVAC remote controller may be configured to execute a user setup routine for entering user setup information, where the user setup routine may cause the HVAC remote controller to display a sequence of two or more user setup screens, sometimes at a common menu level rather than a sub-menu. Some or all of the two or more user setup screens may include, for example, a message center indicating a parameter or function to be set, one or more buttons for adjusting or selecting the parameter or function, and a next button to advance the user setup routine to a next screen in the sequence of user setup screens.

Abstract: An HV_ECU executes a program, which includes a step of receiving route information; a step of acquiring a duty command value of a battery cooling blower; a step of calculating a cooling airflow; steps for acquiring a battery temperature and an intake temperature; a step of calculating a value TB?TC; a step of calculating a cooling performance; a step of estimating a battery temperature; and a step of performing fail safe processing when in an abnormal state.

Abstract: A self-contained climate control system for simultaneous temperature and humidity control in a wine cellar includes a refrigeration system having a conventional vapor-compression system including a condensate drip tray with over-flow passages. A programmable controller with a temperature sensor turns the compressor on and off by responding to the temperature sensor to regulate the air temperature in the wine cellar. The programmable controller keeps the system fans running after the compressor stops to cause evaporation of the water in the drip tray, restoring the moisture to the wine cellar.