Heliostat is an important component in the solar power tower station because its cost, optical performance, and mechanical performance have great influence on the overall property evaluation of the station. The T-shape heliostat tracking the sun in the azimuth-elevation mode has been commonly developed and successfully applied in many stations. In recent years, some researchers have developed spinning-elevation heliostats and have analyzed their optical performance. In this paper, the structure of a toroidal heliostat tracking the sun in the spinning-elevation mode is designed, and the mechanical performance of the structure under wind load is analyzed by means of the finite element method. The trends of force, moments, and vibration modes with the change in elevation have been presented, and the classic status is analyzed in detail when their maximum values occur. Furthermore, the advantages and disadvantages of a toroidal heliostat in reducing the cost are discussed compared with those of a traditional T-shape heliostat.
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e-mail: zangchch@mail.iee.ac.cn
e-mail: zhifeng@vip.sina.com
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November 2010
Research Papers
Structural Design and Analysis of the Toroidal Heliostat
Chuncheng Zang,
Chuncheng Zang
Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering,
e-mail: zangchch@mail.iee.ac.cn
Chinese Academy of Sciences
, Beijing 100190, China
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Zhifeng Wang,
Zhifeng Wang
Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering,
e-mail: zhifeng@vip.sina.com
Chinese Academy of Sciences
, Beijing 100190, China
Search for other works by this author on:
Wenfeng Liang,
Wenfeng Liang
Himin Solar Energy Group Co. Ltd.
, Dezhou, Shandong 253090, China
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Xiaoyu Wang
Xiaoyu Wang
Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering,
Chinese Academy of Sciences
, Beijing 100190, China
Search for other works by this author on:
Chuncheng Zang
Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering,
Chinese Academy of Sciences
, Beijing 100190, Chinae-mail: zangchch@mail.iee.ac.cn
Zhifeng Wang
Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering,
Chinese Academy of Sciences
, Beijing 100190, Chinae-mail: zhifeng@vip.sina.com
Wenfeng Liang
Himin Solar Energy Group Co. Ltd.
, Dezhou, Shandong 253090, China
Xiaoyu Wang
Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering,
Chinese Academy of Sciences
, Beijing 100190, ChinaJ. Sol. Energy Eng. Nov 2010, 132(4): 041007 (6 pages)
Published Online: October 4, 2010
Article history
Received:
December 26, 2008
Revised:
July 26, 2010
Online:
October 4, 2010
Published:
October 4, 2010
Citation
Zang, C., Wang, Z., Liang, W., and Wang, X. (October 4, 2010). "Structural Design and Analysis of the Toroidal Heliostat." ASME. J. Sol. Energy Eng. November 2010; 132(4): 041007. https://doi.org/10.1115/1.4002347
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