Paper Conference

Proceedings of Building Simulation 2017: 15th Conference of IBPSA


Multi-Objective Performance Evaluation of Adaptive Façade in Hot Arid Climate

Sarah Mokhtar1, Christopher Leung1, Angelos Chronis2
1Bartlett School of Architecture, University College London, United Kingdom
2Institute for Advanced Architecture of Catalonia, Barcelona, Spain

Abstract: A drift from complex and energy-intensive systems for adaptive facades towards material-based actuation systems started to take place in the recent past. The adaptability limitations of these newly proposed passive architectural applications question the capacities and performative potentials of material-based actuated facades. Limited investigations were carried out to tailor material-based façade systems to desired performative objectives, and were generally dictated by one sole material property. This study examines the performance and functional necessity of more diversified responses for material-based adaptive systems, based on a case study of a shape memory alloy actuated adaptive component under Cairo-Egypt climate. The building performance goals were set to reduce incident solar radiation, improve interior daylighting, and increase visual connectivity to the outside; and were evaluated based on exhaustive parametric simulations running on Radiance engine. The research findings suggest that the larger geometrical repertoire, adaptability, and façade layering allow the passive adaptive system to reach its higher performative potentials for which improvements can reach up to 125% from a similar one-layered static facade
Pages: 2838 - 2847