An air handling unit, particularly for data center cooling, operates to cool a flow of return air from a conditioned space using a flow of ambient air. The return air is recirculated to the conditioned space as supply air. The flow of ambient air can be adiabatically cooled to a lower temperature to provide additional cooling. A flow of makeup air can be joined with the cooled return air to form the supply air, and can be sourced from the ambient environment directly or from the heated flow of ambient air.

Methods, systems, and devices for humidifying are described herein. One method includes determining a temperature in a space associated with a humidifying unit, determining a relative humidity in the space, determining an air speed associated with the humidifying unit, and adjusting an amount of water sprayed by the humidifying unit based, at least in part, on the temperature, the relative humidity, and the air speed.

A evaporative cooling device is described having a pair of heat conducting plates arranged in spaced, generally parallel relationship with spacing elements separating the plates from one another and defining primary and secondary flow channels between the plates. Inlet ducts are connected to the primary channels and outlet ducts connect from the primary and secondary channels. A water distribution system is also provided to supply water to the secondary channels such that a primary air flow through the primary channels may be cooled by heat conduction along the plates to cause evaporation of the water into a secondary air flow through the secondary channels.

An evaporative cooling unit includes a first V-shaped portion of a winding of microporous hollow fibers configured to receive a liquid. The evaporative cooling unit also includes a second V-shaped portion of the winding of microporous hollow fibers configured to receive the liquid, where the second V-shaped portion is coupled with the first V-shaped portion. The evaporative cooling unit also includes an internal cavity disposed between the first V-shaped portion and the second V-shaped portion.

An air conditioning system includes evaporative cooling units, each evaporative cooling unit including a first V-shaped portion of a winding of microporous hollow fibers that are configured to receive a liquid, and a second V-shaped portion of the winding of microporous hollow fibers that are configured to receive the liquid, where the second V-shaped portion is coupled to the first V-shaped portion, and an internal cavity is disposed between the first V-shaped portion and the second V-shaped portion. The air conditioning system also includes a plumbing assembly configured to supply the liquid to the plurality of evaporative cooling units. The air conditioning system also includes a controller configured to control the plumbing assembly to change a flow rate of the liquid, or to block the liquid from at least one evaporative cooling unit of the plurality of evaporative cooling units.

An evaporative cooler having a pressurized water distribution system that provides even water distribution to evaporative media pads within the evaporative cooler, even when the evaporative pads are canted and/or are not in perfect alignment. In one embodiment, the evaporative cooler includes a weatherproof sealing assembly that is transitionable between an open position and a closed position. In one embodiment, the evaporative cooler includes a reservoir having a plurality of ribs on a bottom surface to facilitate seating the evaporative cooler on a roof during installation. A method of installing an evaporative cooler including mounting at least a portion of the evaporative cooler to a dropper before securing the dropper to the roof.

A water dispersing system (WDS) that allows a selectable quantity of water to be dispersed into an environment. The WDS utilizes a fan and a water supply assembly. The fan has a frame inside of which are two rotating blades, and preferably a stand. The water supply assembly includes a reservoir, a water tube, and a water dispersing head. Water is gravity fed from the reservoir, through the water tube and out of the head. Water from the head is directed into the first fan's rotating blades. Once the water hits the blades, the water is re-directed back out through a front grill on the fan. The second fan blades project air outward. The amount of water that comes from the WDS can be selectably chosen, from a light mist to a heavier spray, and the temperature of the water can be lowered by placing ice into the reservoir with the water. An excess water basin catches any water that drips downward from the blades.

The present invention provides a foldably packed temperature adjustment fan, which comprises a water tank assembly, having a water storage cavity; and a shell assembly, mounted on a top of the water tank assembly, wherein the shell assembly comprises a plurality of side plate assemblies for surrounding and forming an airflow cavity and a top plate assembly, at least a part of the side plate assemblies are respectively utilized as a whole body and are detachably mounted on an edge of the top of the water tank assembly, and at least a part of the side plate assemblies can be completely accommodated in the water storage cavity after being detached. The present invention further provides a folding method of the foldably packed temperature adjustment fan. When the temperature adjustment fan of the present invention is used, its appearance is the same as that of a normal unit; during packing, a rear plate assembly, a left side plate assembly and a right side plate assembly can be completely accommodated in the water tank assembly, a front panel assembly does not need to be detached, and as long as the front panel assembly is turned over, fast folding is completed; and the package size is small, associated components are less, and logistics transportation is convenient.

Humidifying apparatus includes a chamber, and a water tank for supplying water to the chamber. A baffle located within the chamber divides the chamber into an inlet section and an outlet section, and guides water received from the water tank along the inlet section to the outlet section. An air flow is conveyed over water stored in the outlet section of the chamber and is emitted from the apparatus. Water within both the inlet section and the outlet section of the chamber is irradiated with ultraviolet radiation. The water within the outlet section is atomized by a transducer to humidify the air flow.

A dehumidification system for removing water vapors from an air is disclosed. The system includes a dehumidification core defining an air channel and at least one vapor channel separated from the air channel by a membrane to facilitate a removal of moisture from the air flowing through the air channel and is selectively permeable to water and water vapor and impermeable to air. The dehumidification system further includes a water ejector having a throat portion fluidly coupled to the vapor channels and adapted to create a relatively lower pressure of water vapor within the vapor channels than in the air channel The water ejector also includes an outlet portion disposed downstream of the throat portion and configured to increase the pressure of water to facilitate a condensation of the water vapors received from the vapor channels.