Sumutusjäähdytin

Sumutusjäähdytin, also known as a mist cooler or evaporative cooler, is a device that cools air through the evaporation of water. It consists of a fan that draws hot air through a wet medium, typically a pad or curtain saturated with water. As the water evaporates, it absorbs heat from the air, thus lowering the air temperature. The cooled air is then circulated back into the environment.

These cooling systems are most effective in dry climates where the humidity is low, as high humidity reduces the rate of evaporation. They are often used in outdoor settings such as patios, gardens, and event venues, as well as in industrial environments like warehouses and workshops. In some cases, they are also used indoors, particularly in arid regions or in spaces where traditional air conditioning is not feasible or desired.

The operation of a sumutusjäähdytin is based on the principle of latent heat of vaporization. When water changes from a liquid to a gaseous state (evaporation), it requires energy in the form of heat, which it draws from the surrounding air. This process results in a noticeable cooling effect. Unlike air conditioners that use refrigerants and mechanical compression, evaporative coolers are generally more energy-efficient and environmentally friendly. They also have the added benefit of increasing humidity in the air, which can be desirable in dry conditions. Maintenance typically involves refilling the water reservoir and cleaning or replacing the wet media periodically.