The Basic Physics of Mist

Your Body cools itself by sweating. The sweat and ambient air combines to cool your body naturally. Misting fans work very much the same way. By combining mist and air from a high powered fan can drop temperatures immediately.

Misting systems use evaporative cooling to lower the temperature of the surrounding area. Misting fans are more effective than misting line systems due to the combination of aspirated (moving) air and mist. When the movement of the air blends with the mist the result is an enhancement of the evaporation process with a rapid drop in the temperature of up to 30 degrees Fahrenheit.

High Pressure Misting Systems

High-Pressure Misting Systems operate between 800 and 1200 psi (pounds per square inch) of water pressure. A High- Pressure Pump is the heart of the misting system and is utilized to increase the pressure of the water flow. Droplets of water the size of 10 microns or smaller are forced through an air stream. As the micron water droplets “flash evaporate” they pick up heat from the air, which significantly drops the temperature between 25 and 35 degrees Fahrenheit, without making you wet.

Misting works by forcing water through a brass and stainless steel mist nozzle producing a micro-fine mist. The water droplets that create the mist are so small, about one-half the diameter of a strand of hair, that they instantly flash evaporate. This flash evaporation can reduce the surrounding air as much as 35 degrees in just seconds. The mist is so fine that it quickly evaporates to create the cooling effect. The idea is to keep the nozzles at an appropriate distance.

What is Flash Evaporation?

Flash evaporation occurs when water is forced through micro nozzles, creating a super fine mist. The smaller each water droplet, the more surface area per gallon of water and the more effectively the water evaporates. As the super-fine water droplets are introduced into the atmosphere, they quickly absorb the heat present in the environment and evaporate, hence the air is cooled.

What are effects of humidity?

High-Pressure Misting Systems will work very effectively in both low and high levels of humidity. Even when the humidity exceeds 90%, the effects of the High-Pressure Misting System will be felt with the rapid drop in temperature and make you feel cool and more comfortable..