Improving the Thermal Performance of Indirect Evaporative Cooling by Using a Wet Fabric Device on a Concrete Roof in Hot and Humid Climates

This study investigated an indirect evaporative cooling system (IECS) to control latent heat loss on roof ponds by increasing the evaporation rates wet fabric membranes. The potential of proposed was experimentally tested in a real environment and it compared against pond floating fiber (gunny bags) provide efficient model for buildings hot humid climates. Dry bulb temperatures (DBT) are presented four experimental models. Solar irradiance, ambient indoor dry temperatures, relative humidity (RH) were measured seven days each following climate conditions: sub-humid (mean DBT 27.3 °C mean RH 72%), 27.1 81%), warm 25.2 68%). There no significant variations thermal performance between examined devices under conditions; however, device had superior conditions when other IECSs. In three climatic scenarios where tested, managed reduce air temperature 6.6 °C, 5.3 5.1 respectively, as outdoor temperatures.