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Microstructure of Surface Pollutants and Brush-Based Dry Cleaning of a Trough Concentrating Solar Power Station

Author

Listed:
  • Chenyang Wang

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430062, China)

  • Jialin Guo

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430062, China)

  • Jingyu Li

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430062, China)

  • Xiaomei Zeng

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430062, China)

  • Vasiliy Pelenovich

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430062, China)

  • Jun Zhang

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430062, China)

  • Bing Yang

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430062, China
    Shenzhen Research Institute of Wuhan University, Shenzhen 518000, China)

  • Xianbin Wang

    (CGN Inspection Technology Co., Ltd., Shenzhen 518038, China)

  • Yu Du

    (CGN Inspection Technology Co., Ltd., Shenzhen 518038, China)

  • Yikun Lei

    (CGN Inspection Technology Co., Ltd., Shenzhen 518038, China)

  • Naibing Lu

    (CGN Solar Energy (Delingha) Photovoltaic Co., Ltd., Delingha 817000, China)

Abstract

The accumulation of pollutants on the surface of a Concentrating Solar Power (CSP) station reduces the power generation efficiency of the whole power plant, affects electricity output, and decreases sales income; therefore, it is particularly important to develop a reasonable and effective cleaning process. Surface pollutants which have a strong interaction with the cleaning process of power stations can determine the quality of cleaning to a certain extent. In this paper, the pollutants on the surface of a trough CSP station with different usage times were collected and characterized using a scanning electron microscope (SEM), a particle size analyzer (PSA), and a transmission electron microscope (TEM). It was found that most of the surface pollutants were of a fine size and included amorphous particles which mainly resulted from the sedimentation of particles suspended for a short time or particles in the process of atmospheric circulation for a long time. Considering the service life of the mirror and the scarcity of water resources in the area where the trough CSP power station is located, a brush-based dry cleaning process with different cleaning times was developed. By comparing the changes in the reflectivity and micro-morphology of the mirror surface before and after cleaning, the feasibility and superiority of the brush-based dry cleaning process were fully confirmed.

Suggested Citation

  • Chenyang Wang & Jialin Guo & Jingyu Li & Xiaomei Zeng & Vasiliy Pelenovich & Jun Zhang & Bing Yang & Xianbin Wang & Yu Du & Yikun Lei & Naibing Lu, 2023. "Microstructure of Surface Pollutants and Brush-Based Dry Cleaning of a Trough Concentrating Solar Power Station," Energies, MDPI, vol. 16(7), pages 1-15, April.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:7:p:3260-:d:1116610
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    References listed on IDEAS

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