Daylighting and energy analysis of multi-sectional facades

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Previous studies on dynamic facades have focused on a single type of section/shading, investigating its properties or control in order to improve comfort or reduce energy use for lighting and air-conditioning. Multi-sectional dynamic façade concepts are able to balance daylight provision and energy use reduction versus maintaining comfort levels. However, the overall potential of such systems needs to be investigated in an integrated manner. A typical multi-sectional facade consists of a top section, representing the non-viewing (daylighting) part, a main middle (viewing) section and a spandrel section. The top section can transmit daylight deeper into the space and the middle section should provide direct outside view (or privacy) and protect from glare and sunlight. The two sections may have different areas, glazing properties, and shading types and control options. This paper investigates the concept and quantifies the impact of combinations of solar protection and light redirecting devices. The analysis includes two climates and two orientations to serve as a preliminary study to assist in design guidelines for multi-sectional façades.




Chan, Y. C., & Tzempelikos, A. (2015). Daylighting and energy analysis of multi-sectional facades. In Energy Procedia (Vol. 78, pp. 189–194). Elsevier Ltd.

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