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Optical performance of fixed east–west aligned CPCs used in China

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  • Tang, Runsheng
  • Wu, Maogang
  • Yu, Yamei
  • Li, Ming

Abstract

In this article, a mathematical procedure is developed to estimate the annual collectible radiation captured by fixed compound parabolic concentrators (CPCs, in short) oriented in east-west direction based on the monthly horizontal radiation. Results show that for fixed east–west aligned symmetric CPCs used over the atmosphere, the optimal acceptance half-angle for maximizing its annual energy collection was 25.97°, the yearly optimal tilt-angle of apertures relative to the horizon was equal to the site latitude, and the maximum annual average optical concentration ratio was uniquely related to the site latitude. For CPCs used in China, the optimal acceptance half-angle were in between 25.3° and 26°, the yearly optimal tilt-angle approached the site latitude with a deviation less than 1°, and the maximum annual average optical concentration ratios ranged from 1.45 to 1.74. Results also indicated that CPCs were more favorable to be used in the areas with higher latitude and abundant solar resources. Effects of tilt-angle and azimuth angle of CPCs on its annual solar gain were also presented.

Suggested Citation

  • Tang, Runsheng & Wu, Maogang & Yu, Yamei & Li, Ming, 2010. "Optical performance of fixed east–west aligned CPCs used in China," Renewable Energy, Elsevier, vol. 35(8), pages 1837-1841.
    • Handle: RePEc:eee:renene:v:35:y:2010:i:8:p:1837-1841
    DOI: 10.1016/j.renene.2009.12.006
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    Citations

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    Cited by:

    1. Bahaidarah, Haitham M. & Tanweer, Bilal & Gandhidasan, P. & Ibrahim, Nasiru & Rehman, Shafiqur, 2014. "Experimental and numerical study on non-concentrating and symmetric unglazed compound parabolic photovoltaic concentration systems," Applied Energy, Elsevier, vol. 136(C), pages 527-536.
    2. Yu, Yamei & Liu, Nianyong & Tang, Runsheng, 2014. "Optical performance of CPCs for concentrating solar radiation on flat receivers with a restricted incidence angle," Renewable Energy, Elsevier, vol. 62(C), pages 679-688.
    3. Jingjing Tang & Yamei Yu & Runsheng Tang, 2018. "A Three-Dimensional Radiation Transfer Model to Evaluate Performance of Compound Parabolic Concentrator-Based Photovoltaic Systems," Energies, MDPI, vol. 11(4), pages 1-24, April.
    4. Qiang Wang & Jinfu Wang & Runsheng Tang, 2016. "Design and Optical Performance of Compound Parabolic Solar Concentrators with Evacuated Tube as Receivers," Energies, MDPI, vol. 9(10), pages 1-16, October.
    5. Guihua Li & Jingjing Tang & Runsheng Tang, 2018. "A Theoretical Study on Performance and Design Optimization of Linear Dielectric Compound Parabolic Concentrating Photovoltaic Systems," Energies, MDPI, vol. 11(9), pages 1-30, September.
    6. Shanks, Katie & Senthilarasu, S. & Mallick, Tapas K., 2016. "Optics for concentrating photovoltaics: Trends, limits and opportunities for materials and design," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 394-407.
    7. Tang, Runsheng & Wang, Jinfu, 2013. "A note on multiple reflections of radiation within CPCs and its effect on calculations of energy collection," Renewable Energy, Elsevier, vol. 57(C), pages 490-496.
    8. Jaaz, Ahed Hameed & Hasan, Husam Abdulrasool & Sopian, Kamaruzzaman & Haji Ruslan, Mohd Hafidz Bin & Zaidi, Saleem Hussain, 2017. "Design and development of compound parabolic concentrating for photovoltaic solar collector: Review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 76(C), pages 1108-1121.
    9. Tang, Feng & Li, Guihua & Tang, Runsheng, 2016. "Design and optical performance of CPC based compound plane concentrators," Renewable Energy, Elsevier, vol. 95(C), pages 140-151.

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