Paper Conference

Proceedings of Building Simulation 2017: 15th Conference of IBPSA


Inter-Model Comparison of Five Climate-Based Daylight Modelling Techniques: Redirecting Glazing/Shading Systems

Eleonora Brembilla1∗, Doris A Chi Pool2, Christina J Hopfe1, John Mardaljevic1
1School of Civil and Building Engineering, Loughborough University, UK
2Instituto Universitario de Arquitectura y Ciencias de la Construccio´n,Escuela Te´cnica Superior de Arquitectura, Universidad de Sevilla, Spain∗Corresponding author

Abstract: The evolution of building facades towards increasingly smarter and more complex fenestration systems required an evolution in simulation capabilities too. While simulation software can reliably reproduce the system’s optical behaviour, the climatebased daylight evaluation of entire buildings needs to efficiently combine accuracy and computation speed. Five state-of-the-art Climate-Based Daylight Modelling (CBDM) techniques to evaluate a space with fixed venetian blinds are compared with each others. Multiple options to apply these techniques are also considered. The use of annual metrics based on global illumination led to a good agreement between all methods, while evaluating only direct sunlight exposed some profound differences between simulation techniques.
Pages: 1047 - 1056