Research on Automatic Adaptation Method for Reflector of Linear Fresnel Collector

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Gao, Xiaolu^1 ; Zheng, Zhaowen^1 ; He, Wenqiang^1 ; Wang, Zhiyong^1

Beijing Instrument Industry Research Institute, Beijing

100176, China^1

关键词: Automatic adaptation;    Collecting efficiency;    Concentration effects;    Edge effect;    Incident angles;    Light spot;    Linear Fresnel collectors (LFC);    Reflective mirrors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/4/042035/pdf
DOI  :  10.1088/1757-899X/394/4/042035

来源: IOP

【 摘 要 】

For the solar linear Fresnel collector, the arc of the primary reflective mirror is usually fixed to a certain degree, because of which, the light spot will be oversized when the solar incident angle varies within a certain range, thus affecting the concentration effect and the collecting efficiency. Moreover, the "edge effect" of the reflective mirror also has a detrimental effect on the concentration accuracy. Based on the theoretical analysis, this paper proposes a method to automatically adjust the arc of the primary reflective mirror in accordance with tracking angle, and then the method of solving the problem of edge effect is also suggested.