A cooling system includes a cooling device having a first cooling coil and a second cooling coil, a first heat transfer fluid in fluid communication with the first cooling coil, a second heat transfer fluid in fluid communication with the second cooling coil, a first heat exchanger in fluid communication with the first heat transfer fluid and the second heat transfer fluid, a second heat exchanger in fluid communication with the second heat transfer fluid and a source of external air, a system of fluid control devices in fluid communication with the second heat transfer fluid and configured to minimize a change in a total pressure drop of the second heat transfer fluid when the cooling system switches between operating modes, and a controller configured to selectively control the cooling device and the system of fluid control devices to operate the cooling system in each of the operating modes.

A heat pump including a refrigerant circuit configured to circulate flammable refrigerant, and an indoor unit configured to be arranged in an indoor space. The refrigerant circuit has a compressor, a utilisation-side heat exchanger, an expansion device and a heat-source-side heat exchanger connected by piping. The an indoor unit includes an outer casing having a top, and a sealed container accommodated in the outer casing. The sealed container has a bottom and a top and accommodates at least one of the compressor, the utilisation-side heat exchanger, the expansion device, and the heat-source-side heat exchanger. The sealed container has a release opening to exhaust leaking refrigerant to an exterior of the outer casing of the indoor unit.

The invention relates to a method and an air condition arrangement for cooling of a user space, comprising the steps of providing an air condition arrangement (1) including a cooling media producing heat exchanger loop (10) having a low pressure tubing (106) in operational connection with a cooling media (31), which cooling media (31) includes water/ice, and having a high pressure tubing (103) in operational connection with a compressor (101) and a condenser (101) and said air condition arrangement further including a air cooling heat exchanger (2) including a cooling media storage member (20) and a flow channel (805, 806, 808) in operational connection with said cooling media (31), to enable inlet flow (801) via at least one inlet (803) of surrounding air into said air condition arrangement (1) to produce a cooled air flow (802) out from said air condition arrangement (1) via at least one outlet (804) during inactivity of said cooling media producing heat exchanger loop (10) and to intermittently produce ice in said cooling media (31) by means of said cooling media producing heat exchanger loop (10), wherein said air condition arrangement (1) provided in a, preferably movable, wall shaped housing (11) and passing inlet air (801) into a downwardly extending path (805) of said flow channel (805, 806, 808).

A dehumidifier includes a machine body including a case. The case includes an air inlet, an air outlet, and an air duct communicating the air inlet and the air outlet. The dehumidifier further includes an axial flow fan arranged in the air duct. An air outlet direction of the axial flow fan is configured to face the air outlet. The dehumidifier also includes a compressor arranged inside the case and side by side with the axial flow fan.

An air conditioner is disclosed. An air conditioner according to an embodiment of the present disclosure comprises: a casing including a compressor, an inlet, and an outlet; a fan motor, installed inside the casing, for blowing air; a discharge vane provided movably in the outlet; a vane motor for operating the discharge vane; a communication unit for communicating with a moving agent moving in an indoor space; and a processor for receiving feature information related to a structure of the indoor space acquired by the moving agent, acquiring the type of the indoor space by using the feature information, and adjusting at least one of a set temperature, an airflow volume, and a wind direction by controlling at least one of the compressor, the fan motor, and the vane motor.

An air-conditioning apparatus includes a refrigerant circuit in which a compressor, a heat source heat exchanger, an expansion device, and a load heat exchanger are connected via refrigerant pipes; a refrigerant leakage sensor configured to output a refrigerant leakage detection signal indicating detection of refrigerant leakage when the refrigerant leakage sensor detects the refrigerant leakage; a refrigerant leakage cutoff device configured to cut off a flow of refrigerant when the refrigerant leakage cutoff device is set to a closed state; and a controller configured to determine whether refrigerant leakage occurs on the basis of an operating state and whether the refrigerant leakage detection signal is received from the refrigerant leakage sensor. When the controller receives the refrigerant leakage detection signal and determines, on the basis of the operating state, that the refrigerant leakage occurs, the controller is configured to set the refrigerant leakage cutoff device to the closed state.

A convection/radiation air conditioning terminal and an air conditioning system are provided. The convection/radiation air conditioning terminal includes a heat pipe. One end of the heat pipe is connected to a first heat exchange pipeline, and the other end of the heat pipe is connected to a second heat exchange pipeline. The heat pipe includes multiple first microchannels which are arranged and independent of each other, and multiple second microchannels which are arranged and independent of each other, where the first microchannels and the second microchannels are arranged and independent of each other. The first microchannels are each internally provided with a first heat exchange working medium, and the second microchannels are each internally provided with a second heat exchange working medium.

An electric motor includes a stator assembly, a rotor provided inside the stator assembly, and a heat sink to radiate heat from the stator assembly. The heat sink includes a base portion, and a heat radiating portion formed integrally with the base portion.

An electric motor includes a rotor including a first rotor end and a second rotor end, and a stator including a first stator end and a second stator end. The first rotor end is located apart from the first stator end toward the first side. The second rotor end is located apart from the second stator end toward the first side. The relationship between the distances D1 and D2 satisfies D1>D2≥0, where D1 is a distance from a permanent magnet to a first end plate, and D2 is a distance from the permanent magnet to a second end plate. The thickness of each of a plurality of electrical steel sheets is not less than 0.1 mm and not more than 0.25 mm.

The present disclosure sucks air in hospital room using a compressor to maintain an inner portion of the hospital room in a negative pressure state, and creates a high-temperature and humid environment by a water spray, the compressor, and a sterilization chamber to kill bacteria or viruses. In addition, the compressor uses power generated by a turbine, and is configured so that heat of air coming out of the compressor is recovered to a suction side of the compressor, such that efficiency of a system may be secured. Further, some of clean air generated while passing through the sterilization chamber may be directly supplied again to the hospital room through a bypass means.