Journal
ENERGY AND BUILDINGS
Volume 253, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2021.111489
Keywords
Daylighting; Plastic optical fiber; Overheating; High irradiance
Funding
- National Natural Science Foundation of China [52090064, 51821004]
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources [LAPS2020-01, LAPS2020-11]
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Experimental results showed that PMMA optical fibers can safely transmit high solar flux under the combined protection of homogenizer, infrared light filter, and liquid water.
Due to low cost and flexibility, Polymethylmethacrylate (PMMA) plastic optical fibers were widely used in the daylighting system. However, the overheating damage caused by infrared thermal effects has seri-ously affected the safety of PMMA optical fibers. To solve this problem, this work experimented three configurations in Tibet, which include homogenizer, infrared light filter, and liquid water. The analysis showed that the infrared light filter and liquid water are complementary in filtering infrared light, which filter infrared light in the range of 780-1100 nm and 1100-2500 nm respectively. The experimental results demonstrated that the PMMA optical fibers can transmit high solar flux safely under the com-bined protection of homogenizer, infrared light filter, and liquid water. (c) 2021 Elsevier B.V. All rights reserved.
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