Volume 4: Innovative Solutions for Energy Transitions: Part III

The Impact of Dynamic Facade Typology on Daylight and Energy Performance: Comparing Rotation and Folding Motion SHI Xuepeng, Abel TABLADA, WANG Lijun, WU Qiong

Abstract

In recent years, architectural design with dynamic facade has been more widely introduced as a solution for building environmental issues. From the morphological point of view, this paper attempts to explore the performance otherness of different dynamic typologies during the optimisation of the design process. Take high-rise office building in the tropical region as an example, The two common typologies of rotation and folding are compared and discussed by parameter simulation method with 36 cases in terms of scale, motion and transmittance to find the optimal trade-off between minimising energy demand for cooling and lighting and maximising daylight comfort.
The results of the study show that the energy demand for cooling and lighting can be reduced by 19%- 24% through dynamic façade while folding typology has better performance in energy conservation in all the three orientations. For daylighting, the average daylight comfort area has an increase of 5%-14%, while the value of rotation typology is higher than folding typology. Furthermore, Motion has an influence on the daylight and energy performance except for energy demand of rotation typology. Differently, Transmittance is related to both performances except daylight of rotation typology. This study provides a performance-based approach to dynamic facade selection. A designer could make the decision not only from aesthetic considerations but also combine them to get higher performance.

Keywords energy conservation, daylighting, dynamic façade