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A novel 2-stage dish concentrator with improved optical performance for concentrating solar power plants

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  • Wang, Jun
  • Yang, Song
  • Jiang, Chuan
  • Yan, Qianwen
  • Lund, Peter D.

Abstract

Here we propose a novel 2-stage dish concentrator system for concentrating solar power plants based on the so-called overlap method, which improves both the radial flux concentration ratio (β) and the intercept factor (γ) of the concentrator. The 2-stage dish is composed of paraboloid primary and hyperboloid secondary mirrors having a special hollow structure enabling the mirrors to overlap, but avoiding excess shading. Geometric and optical analyses with ray-tracing show maximum values of β = 15,498 and γ = 0.78. Also, the size of the focal spot could be reduced. The concept is applicable for solar tower concepts enabling more compact unit mirrors and reducing the receiver size.

Suggested Citation

  • Wang, Jun & Yang, Song & Jiang, Chuan & Yan, Qianwen & Lund, Peter D., 2017. "A novel 2-stage dish concentrator with improved optical performance for concentrating solar power plants," Renewable Energy, Elsevier, vol. 108(C), pages 92-97.
    • Handle: RePEc:eee:renene:v:108:y:2017:i:c:p:92-97
    DOI: 10.1016/j.renene.2017.02.059
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    References listed on IDEAS

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    Cited by:

    1. Chuan Jiang & Lei Yu & Song Yang & Keke Li & Jun Wang & Peter D. Lund & Yaoming Zhang, 2020. "A Review of the Compound Parabolic Concentrator (CPC) with a Tubular Absorber," Energies, MDPI, vol. 13(3), pages 1-31, February.
    2. Glynn John, S. & Lakshmanan, T., 2017. "Cost optimization of dish solar concentrators for improved scalability decisions," Renewable Energy, Elsevier, vol. 114(PB), pages 600-613.
    3. Wang, Hai & Huang, Jin & Song, Mengjie & Yan, Jian, 2019. "Effects of receiver parameters on the optical performance of a fixed-focus Fresnel lens solar concentrator/cavity receiver system in solar cooker," Applied Energy, Elsevier, vol. 237(C), pages 70-82.
    4. Song Yang & Jun Wang & Peter D. Lund, 2020. "Optical Design of a Novel Two-Stage Dish Applied to Thermochemical Water/CO 2 Splitting with the Concept of Rotary Secondary Mirror," Energies, MDPI, vol. 13(14), pages 1-13, July.
    5. Momeni, Farhang & Ni, Jun, 2018. "Nature-inspired smart solar concentrators by 4D printing," Renewable Energy, Elsevier, vol. 122(C), pages 35-44.
    6. Li, Jinyu & Yang, Zhengda & Wang, Yiya & Dong, Qiwei & Qi, Shitao & Huang, Chenxing & Wang, Xinwei & Lin, Riyi, 2023. "A novel non-confocal two-stage dish concentrating photovoltaic/thermal hybrid system utilizing spectral beam splitting technology: Optical and thermal performance investigations," Renewable Energy, Elsevier, vol. 206(C), pages 609-622.
    7. Zhang, Yanping & Xiao, Hu & Zou, Chongzhe & Falcoz, Quentin & Neveu, Pierre, 2020. "Combined optics and heat transfer numerical model of a solar conical receiver with built-in helical pipe," Energy, Elsevier, vol. 193(C).
    8. Hai Wang & Jin Huang & Mengjie Song & Yanxin Hu & Yunfeng Wang & Zijian Lu, 2018. "Simulation and Experimental Study on the Optical Performance of a Fixed-Focus Fresnel Lens Solar Concentrator Using Polar-Axis Tracking," Energies, MDPI, vol. 11(4), pages 1-16, April.

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