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Operational principle

      After the external air through the evaporation (see chart), the air temperature drops from the point A to point B. This change is due to the evaporation of the water in the surface of cooling pad causes the air temperature cooling. This process is called evaporative cooling principle in aerobiology. As shown in the chart, the dry-bulb temperature 33.4 C drops to wet-bulb temperature 27.8 C happened at the saturation factor of 92%. Evaporative cooling is a traditional cooling method by absorbing heat in the air when evaporating to make the air cooling. The new technology of cooling adopts evaporation and filtration principle. The evaporative cooling pad being used is made of the dense fiber corrugated sheet by special technique which improves the working performance sharply.

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