中国光学, 2023, 16 (6): 1356, 网络出版: 2023-11-29  

基于自由曲面的聚焦型太阳模拟器设计

Design of focusing solar simulator based on free-form surface
作者单位
1 长春理工大学 空间光电技术研究所, 吉林 长春 130022
2 中广核太阳能开发有限公司, 北京 100000
3 厦门理工学院 光电与通信工程学院, 厦门 361024
摘要
聚焦型太阳模拟器可以获得高倍汇聚的太阳辐射光斑,在太阳能热发电及热化学研究领域具有重要应用。为了获得均匀的太阳辐射光斑,提出了基于非成像光学的自由曲面聚光镜设计方法。详细阐述了设计原理与具体方法。设计了自由曲面聚光镜,并将其与包容角相同的非共轴椭球聚光镜进行对比。通过仿真分析验证了设计方法的正确性。仿真结果表明:使用额定功率为6 kW的氙灯作为光源时,自由曲面聚光镜构成的单灯太阳模拟器可以在直径为60 mm的目标面内提供平均辐照度为274.4 kW/m2的光斑,与非共轴椭球太阳模拟器相比,光斑不均匀度从18.28%下降到5.69%;七灯太阳模拟器可以产生平均辐照度为1.65 MW/m2的光斑,光斑不均匀度从13.19%下降到5.79%。
Abstract
The concentrating solar simulator can obtain solar radiation spots with high-power convergence, which has important applications in the fields of solar thermal power generation and thermochemical research. To obtain uniform solar radiation spots, a free-form surface condenser design method based on non-imaging optics is proposed, and its design principle and specific method are described. The designed free-form condenser is compared with a non-coaxial ellipsoidal condenser with the same containment angle, and the correctness of its design method is verified by simulation analysis. The simulation results show that when a xenon lamp with a rated power of 6 kW is used as the light source, the single-lamp solar simulator composed of a free-form condenser can produce a spot with an average irradiance of 274.4 kW/m2 in the target region with a diameter of 60 mm. The spot’s unevenness decreases from 18.28% to 5.69% compared with that of a non-coaxial ellipsoidal solar simulator. The seven-lamp solar simulator can produce a spot with an average irradiance of 1.65 MW/m2, with a spot unevenness that decreases from 13.19% to 5.49%.

魏秀东, 李柏霖, 赵宇航, 汤建方, 张继, 黄勇焕, 许英朝. 基于自由曲面的聚焦型太阳模拟器设计[J]. 中国光学, 2023, 16(6): 1356. Xiu-dong WEI, Bai-lin LI, Yu-hang ZHAO, Jian-fang TANG, Ji ZHANG, Yong-huan HUANG, Ying-chao XU. Design of focusing solar simulator based on free-form surface[J]. Chinese Optics, 2023, 16(6): 1356.

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