Proper

Abstract

With recent rises in energy consumption, research and technology development related to energy reduction has become a significant priority, and the demand in this area is increasing. In particular, as energy consumption in the building sector is increasing, various systems are being developed to solve this problem. One such system, the Daylight Duct, is a natural lighting system that transfers the natural light from the outside into specific areas in the house, and as its efficiency has been recognized, its utilization is increasing. However, the conventional daylight duct is limited to improving lighting efficiency, as it transfers external natural light to a certain area regardless of indoor conditions such as the presence of occupants, due to its reliance on a single light diffuser. Therefore, this study proposes a daylight duct design with multiple light diffusers to improve the lighting efficiency of the daylight duct, and presents a driving system and control factors for controlling the opening and closing of the light diffuser. The results of this study suggest that efficient building energy saving is possible, not only by improving the indoor lighting environment but also by preventing unnecessary lighting. However, this study only suggests the design of the daylight duct, and does not include a quantitative performance verification for the design. Therefore, it should be verified through a variety of methods in future research.