Abstract
Many limitations such as the strict dependence on beam irradiation and difficulties for wiring remain in conventional remote daylighting devices. This paper provides a brief discussion on the working theory and limitations for those conventional devices and presents a new concept developed by the first author for remote indoor daylighting. Based on the developed concept, a new device was designed and fabricated accordingly, which is an optical fiber solar concentrator consisting of a PMMA plate and 150 pieces of three-color 1 m long Φ2 mm fluorescent fibers. This new device is mounted on a university building roof and the concentrated light is transported to a remote dark room through 10 m long Φ2 mm clear optical fibers. Outdoor testing and evaluations for remote indoor daylighting and power production have been conducted. A 6-month monitored data from 24th May 2008 to 23rd Nov 2008 has been presented and the results reveal this new device a pleasant potential in remote indoor daylighting for large amount application in building integration.
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