基于全内反射平面聚光器的光纤照明系统设计  

Design of Optical Fiber Daylighting System Based on Total Internal Reflection Planar Concentrator

作　　者：刘贺 张宁[1] LIU He;ZHANG Ning(School of Opto-Electronic Engineering,Changchun University of Science and Technology,Changchun 130022)

机构地区：[1]长春理工大学光电工程学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2023年第3期29-38,共10页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：吉林省科技厅项目(20210201029GX)。

摘　　要：近年来,利用自然光进行照明已经受到了越来越多的关注。为了获得更高的光学效率,设计了一种基于全内反射太阳能聚光器的光纤照明系统,给出了抛物面聚光器的具体设计过程。利用仿真软件建立了聚光器、导光板和光线发散器等模型,分析了聚光器不同结构对其光学性能的影响。通过多次仿真得出,几何聚光比约为70时,聚光系统的光学效率约为93.89%,当几何聚光比分别为500、1000和1500时聚光器的接收角为±0.41°、±0.32°和±0.23°,照明系统在室内工作面的照度均匀性为0.3,系统总效率达到60.19%。设计在节能减排方面发挥重要作用,为缓解能源危机提供了有效的解决方案。In recent years,the use of natural light for daylighting has received increasing attention.In order to obtain higher optical efficiency,an optical fiber daylighting system based on total internal reflection solar concentrator is designed in this paper,and the specific design process of parabolic concentrator is given.Models of concentrator,lightguide and light diffuser are established in the simulation software,and the influence of different structures of concentrator on its optical performance is analyzed.Through multiple simulations,when the geometrical concentration ratio is about 70,the optical efficiency of the concentration system is about 93.89%.The acceptance angles of the concentrators were±0.41°,±0.32°and±0.23°when the geometrical concentration ratios were 500,1000 and 1500,respectively.The illumination uniformity of the daylighting system on the indoor working surface is 0.3,and the total system efficiency reaches 60.19%.The design of this paper plays an important role in energy saving and emission reduction,and provides effective solutions to alleviate the energy crisis.

关 键 词：非成像光学 照明系统 聚光器 导光板 光学效率 

分 类 号：TK513.1[动力工程及工程热物理—热能工程]