Daylight performance of a microstructured prismatic window film in deep open plan offices
Title | Daylight performance of a microstructured prismatic window film in deep open plan offices |
Publication Type | Report |
Year of Publication | 2013 |
Authors | Andrew McNeil, Eleanor S Lee, Jacob C Jonsson |
Series Title | DOE/ CEC PIER Technical Report |
Date Published | 09/2013 |
Abstract | Daylight redirecting systems with vertical windows have the potential to offset lighting energy use in deep perimeter zones. A microstructured prismatic film was designed and fabricated by a manufacturer to redirect sunlight to the ceiling plane when the film was installed in the upper portion of a window. Energy simulations based on the raytracing program, Radiance, were performed to evaluate the annual lighting energy use and discomfort glare in a deep open plan office zone in several climates and for south and east-facing window orientations. These simulations showed that when the prismatic film was combined with a light diffusing film, the system was able to deliver significant energy savings without glare. |