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Design and Optical Performance of Compound Parabolic Solar Concentrators with Evacuated Tube as Receivers

Author

Listed:
  • Qiang Wang

    (Education Ministry Key Laboratory of Advanced Technology and Preparation for Renewable Energy Materials, Yunnan Normal University, Kunming 650500, China)

  • Jinfu Wang

    (Education Ministry Key Laboratory of Advanced Technology and Preparation for Renewable Energy Materials, Yunnan Normal University, Kunming 650500, China)

  • Runsheng Tang

    (Education Ministry Key Laboratory of Advanced Technology and Preparation for Renewable Energy Materials, Yunnan Normal University, Kunming 650500, China)

Abstract

In the present article, six symmetric compound parabolic solar concentrators (CPCs) with all-glass evacuated solar tubes (EST) as the receiver are designed, and a comparative study on their optical performance is performed based on theoretical analysis and ray-tracing simulations. In terms of optical loss through gaps of CPCs and optical efficiency averaged for radiation over the acceptance angle, CPC-6, designed based on a fictitious “hat”-shaped absorber with a “V” groove at the bottom, is the optimal design, and CPC-1, designed based on the cover tube, is the worst solution, whereas from the point of view of the annual collectible radiation on the EST, it is found that CPC-4, designed based on a fictitious “ice-cream” absorber, is the optimal design and CPC-1 is the worst solution. CPC-6, commonly regarded as the best design in the past, is not an optimal design in terms of annual collectible radiation after truncation. Results also indicate that, for high temperature applications, CPC-6 and CPC-4 are advisable due to the high solar flux on the EST resulting from the high optical efficiency for radiation within the acceptance angle.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:10:p:795-:d:79866
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    References listed on IDEAS

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    1. Xiao, Chaofeng & Luo, Huilong & Tang, Runsheng & Zhong, Hao, 2004. "Solar thermal utilization in China," Renewable Energy, Elsevier, vol. 29(9), pages 1549-1556.
    2. 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.
    3. Li, Zhimin & Zhong, Hao & Tang, Runsheng & Liu, Tao & Gao, Wenfeng & Zhang, Yue, 2006. "Experimental investigation on solar drying of salted greengages," Renewable Energy, Elsevier, vol. 31(6), pages 837-847.
    4. 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.
    5. Oommen, Rachel & Jayaraman, S, 2002. "Development and performance analysis of compound parabolic solar concentrators with reduced gap losses—‘V’ groove reflector," Renewable Energy, Elsevier, vol. 27(2), pages 259-275.
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    Cited by:

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    3. Miguel Terrón-Hernández & Manuel I. Peña-Cruz & Jose G. Carrillo & Ulises Diego-Ayala & Vicente Flores, 2018. "Solar Ray Tracing Analysis to Determine Energy Availability in a CPC Designed for Use as a Residential Water Heater," Energies, MDPI, vol. 11(2), pages 1-18, January.
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    5. Islam, Md. Parvez & Morimoto, Tetsuo, 2018. "Advances in low to medium temperature non-concentrating solar thermal technology," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 2066-2093.
    6. Javed Akhter & Syed I. Gilani & Hussain H. Al-Kayiem & Muzaffar Ali, 2019. "Optical Performance Analysis of Single Flow Through and Concentric Tube Receiver Coupled with a Modified CPC Collector Under Different Configurations," Energies, MDPI, vol. 12(21), pages 1-24, October.
    7. Zhang, Xueyan & Wang, Xin & Li, Zhongzhe & Luo, Huilong & Chen, Fei, 2023. "Surface construction and optical performance analysis of compound parabolic concentrator with concentrating surface separated from absorber," Energy, Elsevier, vol. 282(C).

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