Thermal/Optical Performance Characteristics of Reflective Light Shelves in Buildings (Revised)

摘要

The purpose of the research was to determine the performance characteristics on commonly used light shelves and to develop a product which would improve the thermal/optical performance of reflective light shelves in buildings. The conclusions reached as a result of the research include: The simple light shelves currently in use do not significantly improve the energy efficiency of daylighting systems, however, they do improve the quality of light in the perimeter zones. The two most promising technologies are a combination of scaled-down parabolic through concentrating collectors and linear fresnel lenses, and systems using fiber optics to physically distribute collected daylight to interior office zones.