A Comparative Study Of Simulation Tools To Model The Solar Irradiation On Building Façades
Abstract
This paper presents a comparison among eight tools commonly used to evaluate the solar irradiation in urban environments. The focus here is on the vertical surfaces (i.e., façades). The analyzed tools have a large range of applications, from detailed microclimate studies to large-scale irradiation modelling. The benchmark tests consist in simulations using two conceptual urban designs. Two representative winter and summer days are defined. The results, obtained for the modelling of the shortwave irradiance received on the facades, are discussed and the observed differences discussed. In addition, the tools are compared based on their performances (calculation time), and their workflows. This work provides an overview of some of the available tools, their features, similarities and differences as well as a qualitative and quantitative critical comparison of the modelled irradiance. This work is conducted in the framework of an international project comprising experts from four countries, in six universities and one research institute.