Virtual Prototyping

The ability to characterize the daylighting performance of an optically complex fenestration system (CFS) by simulation and to quickly simulate annual performance facilitates iterative design and optimization. LBNL’s GenOpt can be paired with Radiance and the new Radiance CFS capabilities to computationally derive optimal CFS designs. This modeling capability can significantly reduce the cost of early-stage R&D, enabling simultaneous development of prototypes and assessment of energy-savings potential for informed business decision making. This capability was applied to derive more optimal designs for microprismatic daylighting films.

Pareto front generated by multi-objective optimization tool.  Ideal solutions are defined by low annual fractional lighting energy use and low occurrance of discomfort glare.