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Dynamic Thermal Transport Characteristics of a Real-Time Simulation Model for a 50 MW Solar Power Tower Plant

Author

Listed:
  • Haoyu Huang

    (School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China)

  • Ershu Xu

    (School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
    Key Laboratory of Power Station Energy Transfer Conversion and System, North China Electric Power University, Ministry of Education, Beijing 102206, China)

  • Lengge Si

    (School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China)

  • Qiang Zhang

    (School of Electrical, Energy and Power Engineering, Yangzhou University, Yangzhou 225127, China)

  • Qiang Huang

    (CGN New Energy Holding Co., Ltd., Beijing 100070, China)

Abstract

A dynamic simulation model of a heliostat field and molten salt receiver system are developed on the STAR-90 simulation platform. In addition, a real-time simulation model coupling the above two models is built to study the photothermal conversion process of Delingha’s 50 MW solar power tower plant. The nonuniform and time-varying characteristics of the energy flux density on the receiver surface and the dynamic characteristics under different operating conditions are studied. The operational process of the receiver of a typical day is simulated. It was found that there was a strong positive correlation between the energy flux and DNI, and the maximum energy flux density on the surface of the heat absorbing tube panel moved from the first tube panel to the fourth in sequence from 12:00 to 18:00. At the same time, the energy flux density of the last four panels decreased gradually along the arrangement order of the panels. DNI, molten salt mass flow rate and inlet temperature step disturbance simulations are carried out, and the response curves of the molten salt outlet temperature and tube wall temperature are obtained. The conclusion of this paper has important guiding significance for the establishment of an operational strategy for photothermal coupling in a molten salt solar power tower plant.

Suggested Citation

  • Haoyu Huang & Ershu Xu & Lengge Si & Qiang Zhang & Qiang Huang, 2023. "Dynamic Thermal Transport Characteristics of a Real-Time Simulation Model for a 50 MW Solar Power Tower Plant," Energies, MDPI, vol. 16(4), pages 1-16, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:4:p:1946-:d:1069813
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    References listed on IDEAS

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    5. Sánchez-González, Alberto & Santana, Domingo, 2015. "Solar flux distribution on central receivers: A projection method from analytic function," Renewable Energy, Elsevier, vol. 74(C), pages 576-587.
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