The paper titled, “The Impact of Operated Window Shading on Visual Comfort, Non-Visual Health, and Energy Demand from Electric Lighting” was accepted to the proceedings of Building Simulation 2023 after a double-blind peer-review process. The paper summarizes research in the Baker Lighting Lab to develop an annual climate-based simulation workflow for evaluating non-visual health and visual comfort in buildings with operated shading and lighting control systems. This work was supported by the U.S. Department of Energy’s Lighting R&D Program, part of the Building Technologies Office within the Office of Energy Efficiency and Renewable Energy (EERE). the paper was co-authored by Siobhan Rockcastle, Alen Mahic, and Sarah Safranek (PNNL), with support from Dr. Robert Davis and Dr. Belal Abboushi.
Abstract
This paper introduces a simulation-based workflow to assess annual circadian lighting performance, glare risk and energy demand for an array of seated view positions under operated shading and electric lighting conditions. This workflow uses a combination of 9-band and 81-band simulations to represent daylight and electric lighting respectively. Annual climate-driven calculations rely on python-based code provided by the Lark spectral lighting software, which was used to run 180-degree high dynamic range (HDR) renderings with 9-bands of spectral resolution. The results reveal the impact of shading systems on equivalent melanopic lux (EML) and daylight glare probability (DGP) over time and the energy demand (kWh) from electric lighting systems to supplement eye-level recommendations from the WELL v2 Building Standard (Feature L03).
siobhan rockcastle 