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Optical performance analysis of an innovative linear focus secondary trough solar concentrating system

  • Xiliang Zhang
  • Zhiying Cui
  • Jianhan Zhang
  • Fengwu Bai
  • Zhifeng Wang
Research Article
  • 4 Downloads

Abstract

The parabolic trough solar concentrating system has been well developed and widely used in commercial solar thermal power plants. However, the conventional system has its drawbacks when connecting receiver tube parts and enhancing the concentration ratio. To overcome those inherent disadvantages, in this paper, an innovative concept of linear focus secondary trough concentrating system was proposed, which consists of a fixed parabolic trough concentrator, one or more heliostats, and a fixed tube receiver. The proposed system not only avoids the end loss and connection problem on the receiver during the tracking process but also opens up the possibility to increase the concentration ratio by enlarging aperture. The design scheme of the proposed system was elaborated in detail in this paper. Besides, the optical performance of the semi and the whole secondary solar trough concentrator was evaluated by using the ray tracing method. This innovative solar concentrating system shows a high application value as a solar energy experimental device.

Keywords

secondary parabolic trough solar concentrator ray tracing method linear focus concentration ratio optical performance 

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Notes

Acknowledgements

This work was financed by the National Key Research and Development Program of China (Grant No. 2016YFE0201800).

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Copyright information

© Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Xiliang Zhang
    • 1
    • 2
    • 3
  • Zhiying Cui
    • 1
    • 2
    • 4
  • Jianhan Zhang
    • 1
    • 2
    • 3
  • Fengwu Bai
    • 1
    • 2
    • 4
  • Zhifeng Wang
    • 1
    • 2
    • 4
  1. 1.Institute of Electrical EngineeringChinese Academy of SciencesBeijingChina
  2. 2.Key Laboratory of Solar Thermal Energy and Photovoltaic System of Chinese Academy of SciencesBeijingChina
  3. 3.Beijing Engineering Research Center of Solar Thermal PowerBeijingChina
  4. 4.University of Chinese Academy of SciencesBeijingChina

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