The researchers designed and tested a new type of air-cooled absorption chiller that uses lithium-bromide to cool air. By changing the structure of the chiller's components, they found that air-cooled systems can work just as well as water-cooled ones. They tested the chiller under different temperatures and conditions to see how well it performed. Their findings show that the chiller can cool effectively in various environments and temperatures, and they identified which factors affect its cooling capacity.