In a industrial evaporative air conditioner or system of evaporative cooling, The hot air is forced through an absorbent medium, usually panels designed to maximize the contact surface between air and water. When the air comes in contact with these wet panels, the water evaporates, causing a decrease in air temperature before it is distributed to the area to be cooled.
Systems using cardboard panels in industrial chillers
The cardboard panels o cellulose are a commonly used material in the construction of evaporative cooling systems for industrial chillers due to their ability to absorb water and facilitate evaporation.

Characteristics of cardboard panels in industrial coolers:
- High absorption capacityThe cardboard, due to its porous structure, is capable of retaining a large amount of water, which improves the efficiency of the evaporation process and, therefore, of cooling.
- Affordable costThis type of panel is economical compared to other more sophisticated materials, making it an attractive option for industrial refrigeration systems on a limited budget.
- EfficiencyAlthough not as efficient as more advanced materials (such as plastic or fiberglass panels), paperboard is suitable for large-scale evaporative cooling applications, such as in industrial chillers for warehouses or warehouses.