Misting systems have been in use for many years as a cooling system, humidifying system or a dust suppression system among other uses. By turning water into tiny water droplets under high pressure a low cost method of cooling can be achieved and it has proven to be a means for companies to save a lot of money.
The way a misting system works is that the water line is strung up around the area that the cooling is to take place. Along the length of the water line is a series of misting nozzles. Each misting nozzle has a small hole that controls the size of the droplets that are produced. The smaller the hole in each misting nozzle the smaller the droplet that is produced and the higher the water pressure.
When the water droplets are released from the nozzles they quickly evaporate in the air. This evaporative process, which is known as flash evaporation, uses up the hot air and leaves cool air in its place. The result is a drop in temperature in the immediate area by as much as 20 degrees. The best conditions for the misting systems to operate in are dry conditions where the humidity levels are low.
Commercially these cooling systems have become important in maintaining the health of livestock as well as the production levels of milk in dairy cattle. Restaurants have found a use for these systems, too, by placing them around their outdoor tables on hot days.
Cooling is not the only use of a misting system with places such as greenhouses reliant on them for the control of the humidity. This type of humidity control is also required in such places as a barrel room at a winery and for the storage of fruit and vegetables to prevent them from drying out too quickly.
There are many different uses for a misting system and the key ingredients are the misting nozzles that control the size of the water droplets and the water itself. As a low cost method of cooling it has proven to be very effective.