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Transmittance optimization of solar array encapsulant for high-altitude airship

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  • Zhu, Weiyu
  • Xu, Yuanming
  • Du, Huafei
  • Zhang, Lanchuan
  • Li, Jun

Abstract

The efficiency of solar cell is a critical problem to the energy management of high-altitude airship. Excessive temperature and solar radiation intensity of solar cell will reduce the cell efficiency. The main purpose of this study is to increase the energy output of solar array through optimizing transmittance of solar array encapsulant. The thermal and heat transfer models of solar array were considered during the investigation of the effect of transmittance on output performance of solar array. And the optimization model of transmittance is presented to obtain the optimum transmittance in different working conditions for the first time. The feasibility of the numerical model is verified by comparison with experimental data of the temperature of solar array during a day. The results indicate that the output performance of solar array is variable under different transmittances and the optimum transmittance of solar array is changing with the working latitude and date. The simulation results show that the maximum increase of output energy can reach up to 0.5 MJ on summer solstice. The optimization study provides both theoretical and practical support for choosing optimal encapsulant materials in the preparation stage of high-altitude airship.

Suggested Citation

  • Zhu, Weiyu & Xu, Yuanming & Du, Huafei & Zhang, Lanchuan & Li, Jun, 2018. "Transmittance optimization of solar array encapsulant for high-altitude airship," Renewable Energy, Elsevier, vol. 125(C), pages 796-805.
    • Handle: RePEc:eee:renene:v:125:y:2018:i:c:p:796-805
    DOI: 10.1016/j.renene.2018.02.111
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    References listed on IDEAS

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    Cited by:

    1. Meng, Junhui & Liu, Siyu & Yao, Zhongbing & Lv, Mingyun, 2019. "Optimization design of a thermal protection structure for the solar array of stratospheric airships," Renewable Energy, Elsevier, vol. 133(C), pages 593-605.
    2. Jiang, Yi & Lv, Mingyun & Wang, Chuanzhi & Meng, Xiangrui & Ouyang, Siyue & Wang, Guodong, 2021. "Layout optimization of stratospheric balloon solar array based on energy production," Energy, Elsevier, vol. 229(C).
    3. Zhu, Weiyu & Xu, Yuanming & Du, Huafei & Li, Jun, 2019. "Thermal performance of high-altitude solar powered scientific balloon," Renewable Energy, Elsevier, vol. 135(C), pages 1078-1096.
    4. Jiang, Yi & Lv, Mingyun & Qu, Zhipeng & Zhang, Lanchuan, 2020. "Performance evaluation for scientific balloon station-keeping strategies considering energy management strategy," Renewable Energy, Elsevier, vol. 156(C), pages 290-302.
    5. Liu, Yang & Du, Huafei & Xu, Ziyuan & Sun, Kangwen & Lv, Mingyun, 2022. "Mission-based optimization of insulation layer for the solar array on the stratospheric airship," Renewable Energy, Elsevier, vol. 191(C), pages 318-329.
    6. Qiumin Dai & Daoming Xing & Xiande Fang & Yingjie Zhao, 2021. "Conceptual Design of an Energy System for High Altitude Airships Considering Thermal Effect," Energies, MDPI, vol. 14(14), pages 1-13, July.

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