Shape and alignment measurement of the heliostat by laser deflectometry

Wenbin Xu; Zhenwu Lu; Hua Liu; Hongxin Zhang; Zhengguo Ni

doi:10.1117/12.792960

11 September 2008 Shape and alignment measurement of the heliostat by laser deflectometry

Wenbin Xu, Zhenwu Lu, Hua Liu, Hongxin Zhang, Zhengguo Ni

Proceedings Volume 7046, Optical Modeling and Measurements for Solar Energy Systems II; 70460J (2008) https://doi.org/10.1117/12.792960
Event: Solar Energy + Applications, 2008, San Diego, California, United States

Abstract

In the solar tower thermal power generation system, the precision of the slope angle of the heliostat is the major factor, which influences the efficiency of the system, consequently, this angle should be tested accurately. In this paper, the methods based on laser deflectometry are proposed to measure the shape error of the mirror facet and the connected error of the facets; such apparatus and corresponding software packages are developed. With the help of these two apparatus, the heliostat of 100², consisting of 55 mirror facets of 1.8182 m²; (hexagon), for the 1MWe solar tower power plant in Beijing are measured and connected successfully.

Citation Download Citation

Wenbin Xu, Zhenwu Lu, Hua Liu, Hongxin Zhang, and Zhengguo Ni "Shape and alignment measurement of the heliostat by laser deflectometry", Proc. SPIE 7046, Optical Modeling and Measurements for Solar Energy Systems II, 70460J (11 September 2008); https://doi.org/10.1117/12.792960

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