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Nanoparticles enabled pump-free direct absorption solar collectors

Author

Listed:
  • Jin, Haichuan
  • Lin, Guiping
  • Guo, Yuandong
  • Bai, Lizhan
  • Wen, Dongsheng

Abstract

Developing renewable energy technologies, especially solar energy-based, is of great importance to secure our energy future. Current solar thermal systems, however, have relatively low utilization efficiencies, limited not only by their low solar energy capture efficiency but also the auxiliary pumping power to circulate the working fluid. Here an innovative nanoparticle enabled pump-free direct absorption solar collector concept is presented, which combines the advantages of volumetric solar harvesting and oscillating heat pipes. Two different flow modes have been observed when the concentration of nanofluid is different. There is an optimum filling ratio when the thermal resistance reaches the minimum. Validation experiments show that the proposed concept can efficiently harvest solar energy and spontaneously transfer the heat into targeted areas, providing a novel approach for efficient solar energy utilization.

Suggested Citation

  • Jin, Haichuan & Lin, Guiping & Guo, Yuandong & Bai, Lizhan & Wen, Dongsheng, 2020. "Nanoparticles enabled pump-free direct absorption solar collectors," Renewable Energy, Elsevier, vol. 145(C), pages 2337-2344.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:2337-2344
    DOI: 10.1016/j.renene.2019.07.108
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    Cited by:

    1. Tembhare, Saurabh P. & Barai, Divya P. & Bhanvase, Bharat A., 2022. "Performance evaluation of nanofluids in solar thermal and solar photovoltaic systems: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 153(C).
    2. Zhang, Hongyun & Wang, Lingling & Xi, Shaobo & Xie, Huaqing & Yu, Wei, 2021. "3D porous copper foam-based shape-stabilized composite phase change materials for high photothermal conversion, thermal conductivity and storage," Renewable Energy, Elsevier, vol. 175(C), pages 307-317.
    3. Xu, Yanyan & Xue, Yanqin & Qi, Hong & Cai, Weihua, 2021. "An updated review on working fluids, operation mechanisms, and applications of pulsating heat pipes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 144(C).
    4. Yu, Peiqi & Yang, Hua & Chen, Xifang & Yi, Zao & Yao, Weitang & Chen, Jiafu & Yi, Yougen & Wu, Pinghui, 2020. "Ultra-wideband solar absorber based on refractory titanium metal," Renewable Energy, Elsevier, vol. 158(C), pages 227-235.

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