Evaporation

Evaporation
Evaporation is the process in which a liquid changes into a gas only from the surface of a droplet. This means that only those molecules with enough energy, which are moving towards the free surface of the liquid, evaporate and leave the liquid into the surrounding space. Our high-pressure misting system uses special nozzles into which cold water is injected under high pressure. After the water is dispersed by the high-pressure nozzles into the environment, the fine water mist expands, i.e., the water droplets move apart and gradually turn into water vapor (evaporate), absorbing heat from the surrounding environment.

The quality and density of the water mist depend on the size of the droplets and the surrounding temperature. The smaller the droplets, the shorter their lifespan. If the air temperature is low or the air humidity is high, the lifespan of the droplets will be longer, and surfaces may become wet because the droplets do not evaporate in time and fall to the ground.

Research in laboratory conditions has shown that the lifespan of the droplets varies depending on the temperature, ranging from 200°C to 1000°C. These values provided us with relevant information about the evaporation of droplets within this temperature range. However, even at lower temperatures (around 5°C to 100°C), evaporation still occurs, but over longer time intervals (in the range of seconds).

Condensation is the opposite process in which a gas changes its state into a liquid. This process occurs when steam or gas is cooled to a temperature where it transitions into the liquid phase.