A novel automated louver with parametrically-angled reflective slats; design evaluation for better practicality and daylighting uniformity

Design Optimisation of Fixed and Adaptive Shading Devices on Four Façade Orientations of a High-Rise Office Building in the Tropics

“…In recent years, simulation has been proven as an important tool that can help designers to make quick and better decisions when designing a building with good performance [6,10,25,37,40,57]. This study also yields similar results, where the simulation framework can be helpful in providing design guidelines for choosing effective shading device systems with optimum daylight performance.…”

“…This study focuses on optimising internal, horizontal shading devices on the four façade orientations of a high-rise office building in a tropical city, with respect to the annual daylight metrics, through computational modelling and simulation. A reflective horizontal shading device has been recognized for its good performance in providing uniform and well-distributed daylight illumination in a room [12,37,40,51,57]. As well as this, by focusing on this type of shading device, this study aims to validate the impact of the shading device on the annual daylight inside a building annually and reveal the factors that may affect its performance by doing a step-by-step optimisation to each room.…”

“…This study focuses on optimising internal, horizontal shading devices that are expected to provide a uniform and well-distributed daylight illumination in interior spaces [12,37,40,51,57]. A predetermined, newly designed office building in Jakarta, Indonesia (6 • 12 S, 106 • 49 E, tropical monsoon (Am) climate type), is taken as the case study.…”

“…Most studies on façade optimisation, however, only focus on a single façade orientation, which is the equator-facing side, because the observed buildings are typically located in high latitude regions, e.g., [37][38][39][40][41]. Meanwhile, in tropical regions, optimisation of all façade orientations is required due to the relatively high solar radiation and long sunshine duration.…”

Smart Design of Portable Indoor Shading Device for Visual Comfort—A Case Study of a College Library

“…The glare in the library under study is mainly caused by excessive luminosity outside the window. The degree of uncomfortable glare is assessed on the glare index, which indicates the contrast between a glare source (characterized by its size, luminance, and position inside the field of view) and the average luminance of the background [19,20].…”