Paper Conference

Proceedings of SimBuild Conference 2010: 4th conference of IBPSA-USA


The Daylighting Dashboard - A Simulation-Based Analysis for Daylit Spaces

Christoph F. Reinhart, Jan Wienold
Harvard University, Graduate School of Design, Cambridge, MA 02138 USA
Fraunhofer Institute for Solar Energy Systems, 79110 Freiburg, Germany

Abstract: This paper presents a vision of how state-of-the-art computer-based analysis techniques can be effectively used during the design of daylit spaces. Following a review of recent advances in dynamic daylight computation capabilities, climate-based daylighting metrics, occupant behavior and glare analysis, a fully integrated design analysis method is introduced that simultaneously considers annual daylight availability, visual comfort and energy use: Annual daylight glare probability profiles are combined with an occupant behavior model in order to determine annual shading profiles and visual comfort conditions throughout a space. The shading profiles are then used to calculate daylight autonomy plots, energy loads, operational energy costs and green house gas emissions. The paper then shows how simulation results for a sidelit space can be visually presented to simulation non-experts using the concept of a 'daylighting dashboard'. The paper ends with a discussion of how the daylighting dashboard could be practically implemented using technologies that are available today.
Pages: 410 - 418