J. F. Song
The New and Renewable Energy of Beijing Key Laboratory, North China Electric Power University, China
Y. P. Yang
The New and Renewable Energy of Beijing Key Laboratory, North China Electric Power University, China
H. J. Hou
The New and Renewable Energy of Beijing Key Laboratory, North China Electric Power University, China
M. X. Zhang
The New and Renewable Energy of Beijing Key Laboratory, North China Electric Power University, China
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http://dx.doi.org/10.3384/ecp110573781Published in: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden
Linköping Electronic Conference Proceedings 57:15, p. 3781-3788
Published: 2011-11-03
ISBN: 978-91-7393-070-3
ISSN: 1650-3686 (print), 1650-3740 (online)
A daylight concentrating and transmission system via plastic fibers based on dual axis sun tracker to lighting indoor has been built and investigated. The sunlight tracking and concentrating platform adopting horizontal coordinate system combined with photosensitive sensor can realize high position resolution. A sunlight concentrating and transmission experiment has been carried out using 6m long PMMA plastic fibers based on that platform. It is found that color temperature of light transmitted by fibers is 600K lower than that of nature light. The spectrum of light transmitted by fibers is similar to that of nature light. This similarity also exists in chromaticity coordinate; color rendering index; dominant wavelength between light transmitted by fibers and nature light. A quantitative determination of flux loss has been carried out and the results show that there is an attenuation about 2db existing on the interface of fiber.
