The use of evaporated water to cool heated air is known as evaporative cooling. It’s what occurs when you get out of a heated swimming pool. Until you dry, the breeze on your damp body feels cool. This is due to the evaporation of water.
Evaporative Cooling Throughout History
Evaporative cooling was employed by the ancient Greeks, Romans, and Egyptians by simply putting damp mats in front of windows and tent openings. The hot air passing through the mats thus assisted in keeping the indoor air at a comfortable temperature. These mats were forerunners of today’s Cooling Pads.
The invention of the first mechanical ventilation fans in the 15th century, followed by the development of entire evaporative cooling systems combining cooling towers and fans for British textile manufacturers in the 18th century, laid the foundation for the evaporative cooling systems we know and use today.
The Operation Of Contemporary Evaporative Cooling Systems
The Evaporative Cooling Pads, where water evaporates and air flowing through are cooled, are at the heart of the contemporary evaporative cooling system. The cooling pads are made of fluted cellulose sheets that have been bonded together. To prevent rot and provide a long service life with little maintenance, the material is treated with specific chemicals.
A unique water distribution system distributes water over the cooling pads, guaranteeing a consistent flow of water and keeping the whole surface wet to enhance cooling capabilities. Fans provide negative pressure, which draws air through the pads. Contact between air and water causes evaporation. The water pump is controlled by a control system, and the fan distributes cold air throughout the space.
The advantages of evaporative cooling include:
- Clean air lowers the danger of germs and viruses
- No chemicals or refrigerants allowed.
- Low power consumption
- Almost no maintenance equipment
- Evaporative cooling, as well as germs and viruses
Because they include air pre-filtering, all of our evaporative cooling solutions provide highly clean air quality. This, together with the little humidity produced by evaporative cooling, eliminates germs and limits the transmission of viruses in the air.
Bacteria And Viruses, As Well As Evaporative Cooling
Because they include air pre-filtering, all of our evaporative cooling solutions provide highly clean air quality. This, together with the little humidity produced by evaporative cooling, eliminates germs and limits the transmission of viruses in the air.
Humidity And Evaporative Cooling
At a certain temperature and pressure, a specific volume of air can absorb and hold a certain quantity of water vapor. It is considered to be at 65 percent relative humidity if that volume of air contains 65 percent of its moisture capacity.
The hotter the day and the drier the air, the more cooling may be accomplished by evaporation. In other words, the cooling effect is most effective when you need it the most.
Our evaporative coolers, on the other hand, are designed to operate effectively in high-humidity situations and are far more efficient than a basic fan that just circulates warm air. Depending on the temperature and humidity in the environment you wish to chill, our coolers will increase humidity by 2 to 5%. The tiny rise is undetectable in ventilated spaces where the unit’s exhaust air is vented.
Capability To Cool
The table below shows the theoretical departing air temperature of an evaporative cooler at different relative humidity and incoming air temperature combinations. As shown, an incoming air temperature of 35°C at 30% relative humidity allows the evaporative cooler to yield an outgoing air temperature of 26°C.
