Paper Conference

Proceedings of Building Simulation 2017: 15th Conference of IBPSA


A Framework to Support the Development of Manually Adjustable Light Shelves

Shamim Javed1, Georg Reichard2
1King Fahd University of Petroleum and Minerals, Dhahran, Kingdom of Saudi Arabia
2Virginia Tech, Blacksburg, VA, U.S.A.

Abstract: This paper focuses on possibilites for simple, low-cost, manual adjustable lighshelves in comparison to static light shelves, which typically do not utilize their optimal potential of daylight harvesting due to lack of access to optmization procedures. A framework is presented on how to identify optima for seasonal manually adjustable light shelf configurations for a given context. After developing performance evaluation criteria for such light shelves, the study proceeds to identify a process to identify optimal parameters for selected cases, using a reduced set of light shelf variables, as a proof-of-concept. The optimization method is based on a seasonal assessment loop utilizing climate based daylight modeling, carried out in DIVA, controlled by Grasshopper with Daylight Autonomy (DA) as the performance metric. The study concludes with an outline of a framework for manually adjustable light shelf selection.
Pages: 11 - 17