May 1, 2024
Conference Paper

The Impact of Operated Window Shading on Visual Comfort, Non-Visual Health, and Energy Demand from Electric Lighting

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 daylight-driven calculations rely on a python-based code provided in the LARK simulation engine 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.

Published: May 1, 2024

Citation

Rockcastle S., A. Mahic, and S.F. Safranek. 2023. The Impact of Operated Window Shading on Visual Comfort, Non-Visual Health, and Energy Demand from Electric Lighting. In Building Simulation Conference Proceedings: 18th IBPSA Conference on Building Simulation (BS 2023), September 4-6, 2023, Shanghai, China, 0031-0038. Rapid City, South Dakota:International Building Performance Simulation Association. PNNL-SA-184421. doi:10.26868/25222708.2023.1152

Research topics