Paper Conference

Proceedings of ASHRAE/IBPSA-USA Building Simulation Conference


Comparison of Integrated Simulation Tools for LEED V4 Daylight Credit Assessment

Ahoo Malekafzalil, Ladan Ghobad, Jianxin Hui
North Carolina State University, Raleigh, NC
Interface Engineering, Washington, DC

Abstract: Diva and OpenStudio are two integrated daylighting and energy simulation tools. In earlier studies by the authors, comparison between Diva and Openstudio was made based on the simulation results from studying a top-lighting model. This paper expands the previous work by comparing two cases of side-lighting: a space with no shading device and one with overhang and light-shelf. For this comparison, the two simulation tools have been compare in term of Spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE), the metrics of LEED v.4. Validation of the results have been performed by experiments under real sky conditions.
Pages: 9 - 14