The present disclosure discloses a cooling fan, including a housing and a water tank. An air blowing system, and an air inlet and an air outlet corresponding to the air blowing system are arranged in the housing; the water tank is arranged in the housing; an atomizer is configured in the water tank; the air blowing system is communicated with the water tank; a plurality of mist vents are formed in the housing; the plurality of mist vents are all communicated with the water tank; and the plurality of mist vents are located at the air inlet and/or the air outlet.

The present invention discloses a bladeless cooling fan, which is used to solve the problem of poor use experience of the fan in the prior art. The bladeless cooling fan comprises: a fan body, comprising an air inlet; a water cooling component, which is provided together with the air inlet, wherein the water cooling component cools the air that enters the fan body via the air inlet; a wind wheel component, which is accommodated in the fan body and arranged to generate air flow; an air outlet component, which is installed on the fan body, wherein the air outlet component is arranged to receive the air flow from the fan body and guide the air flow to be ejected to the set direction.

A wet surface air cooler (WSAC), including a tube bundle having a process medium therein, a first inlet, a nozzle assembly positioned adjacent to the first inlet for spraying water over the tube bundle to cool the process medium, an outlet, a fill section spaced from the tube bundle and positioned directly below the outlet, a second inlet provided in an outer wall of the WSAC and positioned below the fill section, the second inlet being configured to provide air from outside the WSAC to the fill section, a fan assembly for causing cause air to flow through the inlet, then past the tube bundle, to be mixed with air flowing through the second inlet, and out the outlet, and a basin extending an entire width of the WSAC for receiving water sprayed from the nozzle assembly.

A system passively cools, regulates humidity and/or rectifies diffusive transport of water vapor in an interior area within a structure. The system includes a membrane assembly covering a portion of the structure, wherein the membrane has an interior side facing the interior area and an exterior side. The membrane assembly defines a plurality of pores. When cooling, a supply of fluid is provided to the membrane assembly so that capillary action of the pores redistributes the fluid to create evaporation and, in turn, the desired heat flow. The membrane assembly can include an architectural membrane coated with a porous matrix coating to form the pores. A pump can provide the fluid to the interior side of the membrane assembly. Preferably, the architectural membrane is woven PTFE-coated fiberglass and the porous matrix coating is titanium dioxide, zeolites and/or silica gel.

Systems and methods for controlling conditions in an enclosed space, such as a data center, or for providing cooling to a device, can include using a Liquid-to-Air Membrane Energy Exchanger (LAMEE) as an evaporative cooler. The LAMEE or exchanger can cool water to the outdoor air wet bulb temperature in a cooling system disposed outside of the enclosed space or device. The reduced-temperature water can be delivered to the enclosed space or device or can cool a coolant that is delivered to the enclosed space or device. The air in the enclosed space, or one or more components in the enclosed space, can be cooled by delivering the reduced-temperature water or coolant to the enclosed space, rather than moving the supply air from the enclosed space to the cooling system. In an example, the cooling system can include one or more cooling coils, upstream or downstream of the LAMEE.

An air conditioning system configured to reduce humidity and temperature. The air conditioning system includes a closed loop desiccant system, and a closed loop cooling fluid system. The air conditioning system comprises a dehumidification system, a distillation system, and a refrigeration system. The dehumidification system reduces the temperature and humidity of the air. The distillation system separates the depleted liquid desiccant. The refrigeration system maintains liquid desiccant and cooling fluid at an inlet temperature. A flow of air is passed through the desiccant to reduce humidity. The flow of air is passed through a cooling fluid spray to reduce, temperature. The desiccant circulated to a heat collector for regeneration. The cooling fluid is recirculated to a heat collector for regeneration.

This invention relates to a hybrid air cooling system 10 comprising a primary inlet 12 for receiving a primary air stream 14, a primary outlet 16 for supplying a conditioned air stream 18 to a conditioned space, and a primary air flow passage 20 extending between the primary inlet and outlet 12, 16. The system 10 further comprises a primary heat exchange means 22, disposed in the primary air flow passage 20, which is adapted to permit the primary air stream 14 to operatively pass therethrough, to extract heat energy from the primary air stream 14 as it passes therethrough and thereby form the conditioned air stream 18. The primary heat exchange means 22 includes a first indirect heat exchange element 24 utilising a first coolant 26 for extracting the heat energy from the primary air stream 14, a second indirect heat exchange element 28 utilising a second coolant 30 for extracting the heat energy from the primary air stream 14, and a third direct heat exchange element 32 utilising a third coolant 34 for extracting the heat energy from the primary air stream 14.

One variation of a cooling system includes: a cooling unit including a substrate defining a thermally-conductive material and a coating defining a porous, hydrophilic material. The substrate defines: a base; a heatsink structure extending from the base; and an open network of pores extending between surfaces of the substrate. The coating extends across surfaces of the substrate and lines the open network of pores within the substrate. The heatsink structure is configured to: communicate thermal energy from a first working fluid, flowing over the heatsink structure, into the heatsink structure, to cool the first working fluid; and release thermal energy and moisture, contained in pores of the coating, into a second working fluid flowing over the heatsink structure, to cool the second working fluid and the heatsink structure.

A method by a controller of a cooling system includes calculating a difference between a first temperature of ambient air and a second temperature of pre-cooled air. The pre-cooled air is ambient air that has been cooled by water from a water distribution system before it enters one or more condenser coils. The method further includes determining that the difference between the first and second temperatures is less than or equal to a predetermined temperature difference, and in response, determining that the first temperature is greater than or equal to a minimum temperature. The method further includes, if the first temperature is greater than or equal to the minimum temperature, instructing the water distribution system to distribute the water to pre-cool the ambient air for a predetermined length of time and to disable the distribution of the water after the predetermined amount of time has elapsed.

An air conditioning unit, including: a chamber; a fan, in the chamber, for effecting an entry air entering the chamber and an exit air exiting the chamber; and an evaporative unit, in the chamber, for conditioning the entry air; wherein the fan, together with at least part of the chamber, creates a pressure zone, without ejecting air directly to, or without drawing air directly from, the evaporative unit, such that air moves through the evaporative unit substantially through a pressure effect.