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Fixed Fiber Light Guide System with Concave Outlet Concentrators

Author

Listed:
  • Bangdi Zhou

    (School of Physical Science and Technology, Guangxi University, Nanning 530004, China)

  • Kaiyan He

    (School of Physical Science and Technology, Guangxi University, Nanning 530004, China)

  • Ziqian Chen

    (School of Physical Science and Technology, Guangxi University, Nanning 530004, China)

  • Shuiku Zhong

    (School of Physical Science and Technology, Guangxi University, Nanning 530004, China)

Abstract

Because a traditional optical fiber light guiding system includes a tracking device, it also inevitably has a complex structure, high construction and maintenance costs, short life span and low reliability. Although several types have been developed for decades, there are no successful products on the market. The biggest cause of the problem is that all traditional optical fiber light guiding systems must have a tracking device. This paper studies a solar fiber optic guide system without a tracking device, hoping to solve this problem. A fixed fiber light guide system using concave outlet concentrators as its receiving unit is proposed. The structure and working principle of the concave outlet concentrator, the receiving unit and the light guide system are introduced. With optical simulation software and the actual sunlight experimental method, this paper first discusses the conceptual design of the concentrator, then studies the transmission efficiency curve of the receiving unit with different angles of incident light, and finally tests the output illuminance of the whole system in actual sunlight. Field test results show that when the average sunshine intensity is about 800 W/m 2 , the system has an output of nearly 300 lux at 0.4 m in front of the outlet end of the fiber bundle with only 3.11 × 10 − 2 m 2 receiving area. This illumination has been able to meet people’s daily lighting requirements. The results of computer simulation and actual sunlight experiments show that this fixed optical fiber light guide system with non-tracing structure is feasible. The absence of a tracking structure means that all moving parts of the system are completely discarded. This greatly improves the working reliability and operation life of the light guide system, and greatly reduces the maintenance and operating costs.

Suggested Citation

  • Bangdi Zhou & Kaiyan He & Ziqian Chen & Shuiku Zhong, 2022. "Fixed Fiber Light Guide System with Concave Outlet Concentrators," Energies, MDPI, vol. 15(3), pages 1-16, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:982-:d:737123
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    References listed on IDEAS

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    1. Wong, Irene & Yang, H.X., 2012. "Introducing natural lighting into the enclosed lift lobbies of highrise buildings by remote source lighting system," Applied Energy, Elsevier, vol. 90(1), pages 225-232.
    2. Darula, Stanislav & Kittler, Richard & Kocifaj, Miroslav, 2010. "Luminous effectiveness of tubular light-guides in tropics," Applied Energy, Elsevier, vol. 87(11), pages 3460-3466, November.
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    Cited by:

    1. Sreelakshmi, Kavuthimadathil & Ramamurthy, K., 2022. "Review on fibre-optic-based daylight enhancement systems in buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 163(C).

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