Development of hybrid louver with shade and wind-catcher functions and simulation for performance verification

In this study, a hybrid louver that combines a shade louver and a wind louver is developed, and its performance is verified through a comparison with other louvers. The hybrid louver is designed to prevent horizontal and vertical louvers from interfering with each other to maintain both a shading effect and a comfortable indoor wind speed. The shading performance of the hybrid louver was analyzed by the same criteria based on a study of the design for a customized shading device, which includes the energy consumption for cooling and heating, as well as indoor average wind speed analysis conducted inside a virtually designed building in the urban area of Seoul. As a result, the hybrid louver was shown to have sufficient shading and wind catcher functions. The shading effect showed ∼75% reduced energy consumption compared with the optimum shading function (100%) in an existing study, and the average indoor wind speed was ∼0.314 m/s, which is sufficiently pleasant.