Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Modelling solar shadings with metallic slats for optimal daylighting. What parameters should we focus on?

Bertrand Deroisy 1, Marshal Maskarenj 2, Sergio Altomonte 2
1 Belgian Building Research Institute, Brussels, Belgium
2 Université Catholique de Louvain, Louvain-la-Neuve, Belgium

Abstract: Designing high performance buildings requires a proper consideration of solar exposures and indoor climate conditions so as to also achieve energy reduction targets. Solar shading systems with tilting metallic slats are commonly used to control light and energy transfer to the interior. However, a precise characterization of their performance has to include many parameters, which are not always easily available. Very often, component level metrics are used to compare solutions, but these are neither consistently related to a specific context nor they are reliable enough for more complex building envelope combinations. This study identifies the factors that most relevantly impact on the robustness of performance outcomes and focuses specifically on the scattering properties of metallic surfaces on simulation results.
Keywords: Solar shading, Daylighting, BSDF, Venetian blind
Pages: 1513 - 1520