期刊
SOLAR ENERGY
卷 136, 期 -, 页码 32-34出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2016.06.071
关键词
Daylighting; Fibers; Attenuation; Spectrum
资金
- National Natural Science Foundation of China [61372183]
- National Basic Research Program of China (973 Program) [2015CB251505]
- Fundamental Research Funds for the Central Universities [2015ZD08]
Polymethylmethacrylate (PMMA) plastic fiber has been used in daylighting system for a long time, however, the quantitative study of its optical properties is still limited. It has been verified in this paper that shortpass dichroic mirror (SDM) can effectively filter out up to 64% of infrared ray from high flux, resulting in small losses of visible spectrum of natural light. Experiments confirmed as well that SDM can significantly reduce infrared thermal effects effectively protecting PMMA plastic fiber. In addition, the effect of incidence angle on the attenuation of fiber is also measured. It has been proven that attenuation rate increases with the incident angle. Experimental data presented here can be used for daylighting system optimization using PMMA fibers. (C) 2016 Elsevier Ltd. All rights reserved.
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