Adiabatic cooling was first used in the Roman Empire. For 2000 years, people have been using water evaporation to cool down the surrounding air in all types of climate systems, including modern, highly advanced cooling systems, where engineers combine this ancient principle with modern technologies.
Adiabatic cooling technology is already used in many solutions and has even more exciting opportunities, e.g., in traditional heat rejection units such as air-cooled condensers and fluid coolers that use ambient air to cool process fluids or gases. Lowering inlet air temperature closer to wet-bulb temperature enables improvements in cooling capacity and efficiency.
Wetted Pad Cooling vs. Water Spray Systems
Discussions have recently centered around two different solutions – wetted pad cooling and water spray systems. The significant advantage of evaporative pads over the water spray system lies in the possibility of water reuse, and it’s saving. Taking into account that newly designed all-aluminum evaporative pads are corrosion-resistant, self-cleaning, can be used with untreated water and able to withstand bacterial growth, we chose this solution for our evaporatively-cooled systems. The pros and cons of each solution are summarized in the below table: