Author(s)

Zhenxiang Zhao ¹, Jiayi Li ¹, Xinyue Xu ¹

Affiliation(s)

¹ Shenzhen MSU-BIT University, Shenzhen, 518172, China

Corresponding Author

Zhenxiang Zhao

ABSTRACT

This study focuses on optimizing the layout of a tower heliostat field for solar thermal power generation. It explores key parameters related to heliostat positioning, installation height, size, and absorption tower positioning. Through comprehensive modeling and analysis, the optimal layout parameters are determined under various conditions. The study developed separate optical models for shadow occlusion efficiency, cosine efficiency, and collector stage efficiency, based on the Fresnel equation and relevant functions, using MATLAB. The findings reveal that the optimal absorption tower position is (0, 0) with a size of 6m * 6m, resulting in an annual average thermal power output of 77.0717 MW and an annual average thermal power output per unit mirror area of 1.2269 kW/m². Further optimization using a genetic algorithm with 500 iterations led to an absorber position of (0, 0), with a size of 7m * 7m and 1,052 facets, resulting in an annual thermal power output of 61.1795 MW and an annual thermal power per unit mirror area of 1.0722 kW/m². The study also assessed the model's robustness and sensitivity, demonstrating its reliability in complex real-world scenarios.

KEYWORDS

Optical model; Fresnel equation; Multi-target genetic algorithm; Heliostat field

CITE THIS PAPER

Zhenxiang Zhao, Jiayi Li, Xinyue Xu, Research on layout optimization of heliostat based on the Fresnel equation. Journal of Electrotechnology, Electrical Engineering and Management (2023) Vol. 6: 134-142. DOI: http://dx.doi.org/10.23977/jeeem.2023.060517.

REFERENCES

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