Evaporative cooling is a method of cooling that uses heat from the air. Evaporative cooling is an alternative to artificial refrigerants. It produces clean, natural air with very low energy consumption. This article explains its basic principles.
Evaporative Cooling is when hot air is cooled by evaporated water. It’s what happens when you exit a swimming pool on a hot day. You feel cold until your body dries. This is because the water evaporates.
Evaporative Cooling In History
Evaporative cooling was used in ancient Greece, Rome, and Egypt by simply hanging mats on the windows and tents. The heat from the mats helped to maintain a comfortable temperature inside. These mats were the precursor to modern cooling pads.
The 15th century saw the invention of the first mechanical ventilation fans. In the 18th century, complete evaporative cooling units combining cooling towers as well fans for British textile makers were created.
How Modern Evaporative Cooling Systems Work?
The modern evaporative cooling system’s heart is the cooling pad. This is where water evaporates and the air passing through is then cooled. The cooling pad is made of fluted cellulose sheets which are glued together. Special compounds are used to protect the cooling pads from rot and maintain a long service life.
Water is distributed evenly across the cooling pads by a special water distribution system. This uniform water supply ensures cooling ability and keeps the surface cool. Air is drawn through the pads by fans creating negative pressure. Evaporation is caused by contact between air-water. The water pump is controlled by a control system and the fan distributes cool air to the surrounding area.
Evaporative Cooling:
- Clean air is better for your health and reduces the risk of getting a virus or bacteria.
- No refrigerants or chemicals
- Low energy consumption
- Nearly maintenance-free equipment
Evaporative Cooling And Viruses And Bacteria
Because they are pre-filtered, all of our evaporative cooling products provide clean air. The slight humidity that evaporative cooling creates helps to reduce bacteria and virus spread.
Evaporative Cooling And Bacteria And Viral
Because they are pre-filtered, all of our evaporative cooling products provide clean air. The slight humidity that evaporative cooling creates helps to reduce bacteria and virus spread.
Evaporative Cooling And Humidity
At a particular temperature and pressure, air can absorb water vapor. A volume of air that contains at least 65% of its moisture content is called relative humidity.
More evaporation can be used to cool the air as it gets hotter. This means that cooling is most effective when you are in greatest need.
Our evaporative cooler is designed to work in high-humidity conditions too. They will also perform better than simple fans that simply circulate warm air. Our coolers will raise humidity by between 2 and 5% depending upon the temperature and humidity. It is not noticeable in areas that are ventilated and where the unit has exhausted its air.
Cooling Capacity
The table below shows the theoretical outgoing air temperature for an evaporative chiller at a given relative humidity. An incoming air temperature of 35 degrees Celsius at 30% relative humidity allows the evaporative cool to produce an outgoing air temperature of 26 degrees Celsius.
