Cooling Data Centers By Water Evaporation
 
Google uses fans to blow warm air over water in its data centers for  cooling. This takes advantage of water's high heat capacity which makes  it far more efficient than standard air conditioning. These researchers  have designed membranes that maximize the efficiency of cooling via  evaporation. The membranes are positioned right over the circuits and  pull water in via capillary action. The membranes have successfully  handled up to 800 watts of heat per square centimeter. The obvious  unanswered questions include production cost, ease of integrating into  servers, and the material's life span.  https://techxplore.com/news/2025-06-evaporative-cooling-tech-curb-centers.html