Abstract: A control unit determines, on the basis of a temperature and humidity detected by sensors, whether outdoor air cooling that takes outdoor air into a room is effective. Upon determination that the outdoor air cooling is effective, the control unit opens a damper and causes stoppage of an air supply fan disposed in an air supply path. Due to such operation, indoor air passing through an air discharge path bypasses a total heat exchanger by passing through a bypass air path, and thereby is discharged to the outdoors as exhaust air. However, due to stoppage of the air supply fan, although the outdoor air does not flow through the air supply path, the outdoor air flows into a building from an opening of the building.

Abstract: A system calculation unit computes a required ventilation volume which is a ventilation volume required for an interior space where a plurality of ventilation devices are placed and ventilation is necessary. Further, the system calculation unit decides, for each ventilation device of the plurality of ventilation devices, an individual ventilation volume which is a ventilation volume to be generated in each ventilation device, based on the required ventilation volume.

Abstract: An air-conditioning apparatus includes a refrigerant circuit and a fluid circuit. The fluid circuit includes a first branch circuit that connects a branching portion at which a downstream portion of a second heat exchanger branches and a connecting portion farther downstream in a direction of fluid flow than the branching portion, and a second branch circuit that connects a branching portion at which a portion farther downstream than the connecting portion of the first branch circuit branches and a connecting portion farther downstream in the direction of fluid flow than the branching portion of the second branch circuit. The first branch circuit is provided with a third heat exchanger that exchanges heat between fluid flowing through the fluid circuit and outdoor air, and the second branch circuit is provided with a heat storage tank that stores fluid having exchanged heat with outdoor air in the third heat exchanger.

Abstract: In an air conditioning system, a cooling tower cools cooling water. A chiller generates cold water using the cooling water cooled by the cooling tower. A cooling water circulation passage circulates cooling water between the cooling tower and chiller. A first heat exchanger exchanges heat between air and the cold water generated by the chiller. A cold water circulation passage circulates the cold water between the chiller and first heat exchanger. A second heat exchanger exchanges heat between a portion of the cooling water cooled by the cooling tower and air heat-exchanged with the cold water. A cooling water branch passage, branching from the cooling water circulation passage, introduces to the second heat exchanger the portion of the cooling water introduced to the chiller from the cooling tower, and introduces to the cooling water circulation passage the portion of the cooling water heat-exchanged with air by the second heat exchanger.

Abstract: A ventilator includes an exhaust air duct for exhausting air from an interior space to an outside and a supply air duct for supplying air from the outside to the interior space, and is equipped with a heat exchanger and a defroster. The heat exchanger performs heat exchange between air passing through the exhaust air duct and air passing through the supply air duct. The defroster defrosts, when frost attaches to the heat exchanger, the heat exchanger by, after air flows into the exhaust air duct or the supply air duct, changing a state of the air.

Abstract: An air-conditioning system according to an embodiment of the present disclosure is an air-conditioning system that conditions air of a room partitioned into a plurality of rectangular air-conditioning target areas in a plan view, and includes a use-side unit that is installed above a ceiling of one of the air-conditioning target areas and is configured to perform air-conditioning operation to condition air of the one air-conditioning target area.

Abstract: A first heat exchanger, a desiccant block, and a second heat exchanger are arranged in series. Further, in a dehumidifying operation, a first operation mode and a second operation mode are alternately repeated. In the first operation mode, the first heat exchanger is operated as a condensor or a radiator and the second heat exchanger is operated as an evaporator. In the second operation mode, the first heat exchanger is operated as the evaporator and the second heat exchanger is operated as the condensor or the radiator. Further, an interval between fin surfaces of a plurality of fins in each of the first heat exchanger and the second heat exchanger is set to 1.5 mm to 3.0 mm so that drainage performance for dew condensation on the fin surfaces is enhanced to reduce an amount of the dew condensation stagnating on the fin surfaces and increase a dehumidifying amount.

Abstract: A first air-supply port and a first air-exhaust port each disposed in a first zone and used to ventilate the first zone are provided. Further, a second air-supply port and a second air-exhaust port each disposed in a second zone and used to ventilate the second zone are provided, and the second zone is adjacent to the first zone. The first air-supply port, the first air-exhaust port, the second air-supply port, and the second air-exhaust port are disposed on one plane. The first air-supply port, the first air-exhaust port, the second air-supply port, and the second air-exhaust port are disposed in order of the first air-exhaust port, the first air-supply port, the second air-supply port, and the second air-exhaust port in one direction, or in order of the first air-supply port, the first air-exhaust port, the second air-exhaust port, and the second air-supply port in one direction.

Abstract: To provide a superconducting magnet apparatus with a structure which can prevent an increase in apparatus size even when a number of connection portions serving to connect superconducting wires is great. The superconducting magnet apparatus includes a first wiring-holding portion (tubular body (12)) extending from a bobbin (6) in an axial direction of a superconducting coil (1) and a second wiring-holding portion (joint plate (13)) which is provided on a same side in the axial direction as the tubular body (12), extends in a direction intersecting with the axial direction, and has a greater diameter than that of the bobbin (6) and the tubular body (12). Superconducting wires (7a to 11a) which extend from the superconducting coil (1) and connect to one another are spirally wound on the tubular body (12) and fastened to a groove (13a) formed on the joint plate (13).

Abstract: A control unit determines, on the basis of a temperature and humidity detected by sensors, whether outdoor air cooling that takes outdoor air into a room is effective. Upon determination that the outdoor air cooling is effective, the control unit opens a damper and causes stoppage of an air supply fan disposed in an air supply path. Due to such operation, indoor air passing through an air discharge path bypasses a total heat exchanger by passing through a bypass air path, and thereby is discharged to the outdoors as exhaust air. However, due to stoppage of the air supply fan, although the outdoor air does not flow through the air supply path, the outdoor air flows into a building from an opening of the building.

Abstract: There is provided a superconducting magnet device that suppresses interference of a part of a tape wire wound around a center axis with another adjacent part. The number of unit wire layer turns of a first coil among the plurality of first coils is smaller than a mean value of the respective numbers of unit wire layer turns of the plurality of first coils, the number of unit wire layer turns of each of the first coils being expressed by a mean value of the respective numbers of turns of the tape wire in the plurality of wire layers, the first coil being disposed at such a position that compressive force acting on the first coil in a direction in which the center axis extends is the largest on the assumption that the respective numbers of unit wire layer turns of the plurality of first coils were the same.

Abstract: An air-conditioning apparatus includes an air-to-air heat exchanger that transfers at least sensible heat between outdoor air and indoor air, an air-to-refrigerant heat exchanger provided in an air supply passage to transfer heat between the outdoor air and refrigerant, a humidifying device provided in part of the air supply passage that is located downstream of the air-to-refrigerant heat exchange, the humidifying device being provided to humidify the outdoor air, a communication passage that causes part of the air exhaust passage that is located upstream of the air-to-air heat exchanger and part of the air supply passage that is located downstream of the air-to-air heat exchanger to communicate with each other, an opening/closing device provided to open and close the communication passage, and a control unit provided to control a refrigerant temperature in the air-to-refrigerant heat exchanger based on an indoor temperature, and to control operation of the opening/closing device based on an indoor humidity.

Abstract: A vehicle air-conditioning apparatus includes a refrigeration cycle that performs air-conditioning in a vehicle interior of a vehicle; a controller that includes a plurality of operation modes with different continuous operation times for a compressor, and that selects one operation mode from among the plurality of operation modes according to an air-conditioning load in the vehicle interior and executes the one operation mode, during travel operation of the vehicle; a storage unit; and a fault diagnosis unit. The fault diagnosis unit performs, during travel operation of the vehicle, fault diagnosis for the refrigeration cycle, after the high-load operation mode from among the plurality of operation modes, in which the continuous operation time is equal to or longer than a time that is set in advance is selected and executed by the controller at the timing stored in advance in the storage unit and while the refrigeration cycle is stable.

Abstract: A magnetic field generation apparatus includes a main coil and a variable-current correction coil. The main coil is formed by winding a ReBCO-based superconductive wire rod and generates a magnetic field in a measurement space. The variable-current correction coil is variable in a value of a current, coaxial with the main coil and disposed inside the main coil, and generates a magnetic field which corrects a uniformity of the magnetic field generated by the main coil.

Abstract: On the basis of a detection result obtained by a pre-presence-in-room environment detection means, an air-conditioning apparatus A changes a presence-in-room start set temperature Ts serving as a target temperature at the start time of a precooling operation or a preheating operation and at the presence-in-room start scheduled time of the user.

Abstract: In an air conditioning system, a thermal source device generates cold water from cooling water cooled by a cooling tower. A cooling water circulation passage allows circulation of the cooling water between the cooling tower and the thermal source device. A first heat exchanger exchanges heat between air and the cold water. A cold water circulation passage allows circulation of the cold water between the thermal source device and the first heat exchanger. A second heat exchanger exchanges heat between the cooling water cooled by the cooling tower and the air heat-exchanged with the cold water by the first heat exchanger. A cooling water branch passage, introduces to the second heat exchanger the cooling water introduced to the thermal source device from the cooling tower, and introduces to the cooling water circulation passage the cooling water heat-exchanged with the air by the second heat exchanger.

Abstract: An air conditioning system includes a compressor to compress refrigerant; a first heat exchanger to condense the compressed refrigerant into a supercooled liquid state; a first decompressor to decompress the condensed refrigerant; a second heat exchanger to cause the decompressed refrigerant to absorb heat; a second decompressor to decompress the heated refrigerant; a third heat exchanger to evaporate the decompressed refrigerant; and a blower fan to take in air from outside a room and blow the air to the first heat exchanger. The second heat exchanger is disposed downstream of the first heat exchanger in a blowing direction of the blower fan. A humidifier is disposed between the first heat exchanger and the second heat exchanger in the blowing direction. The air blown from the blower fan is heated by the first heat exchanger, humidified by the humidifier, cooled by the second heat exchanger, and supplied into the room.

Abstract: An outside-air processing device includes a main body having a return-air introducing port for introducing return air from a room and a supply-air outlet port for blowing out supply air into the room, a total heat exchanger arranged in the main body and configured to exchange heat between outdoor air and the return air, and to blow out the heat-exchanged outdoor air from the supply-air outlet port as the supply air, and an opening-closing unit configured to open and close a bypass path formed in the main body to bypass between the return-air introducing port and the supply-air outlet port.

Abstract: An air-conditioning apparatus includes a refrigerant circuit and a fluid circuit. The fluid circuit includes a first branch circuit that connects a branching portion at which a downstream portion of a second heat exchanger branches and a connecting portion farther downstream in a direction of fluid flow than the branching portion, and a second branch circuit that connects a branching portion at which a portion farther downstream than the connecting portion of the first branch circuit branches and a connecting portion farther downstream in the direction of fluid flow than the branching portion of the second branch circuit. The first branch circuit is provided with a third heat exchanger that exchanges heat between fluid flowing through the fluid circuit and outdoor air, and the second branch circuit is provided with a heat storage tank that stores fluid having exchanged heat with outdoor air in the third heat exchanger.

Abstract: An air-conditioning apparatus includes refrigerant systems that each include an outdoor unit and indoor units and that air-condition a single room, and circulators for making a temperature distribution in the room uniform. The air-conditioning apparatus determines a load on each of the two refrigerant systems in operation, and, if it is determined that improvement of operating efficiency is possible on the basis of the determination result, performs a system-selective operation in which operation of one of the refrigerant systems determined to be under a low load is stopped and the other refrigerant system determined to be under a high load is selectively performed, and causes the circulators to transport blown air blown from the indoor units of the refrigerant system determined to be under a high load to an air-conditioned zone of the refrigerant system determined to be under a low load.