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Numerical modelling of wind and dust patterns around a full-scale paraboloidal solar dish

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  • Christo, Farid C.

Abstract

This study reports on numerical predictions of velocity and pressure fields, and dust particles trajectories in steady and unsteady flows around a full-scale paraboloidal solar dish. Calculations are performed for three wind speeds of 4.16, 9.72, and 15.2 m s−1, and dish pitch angles from 0° to 180°. The flow field structure, lift and drag coefficients are calculated for each flow configuration. Using the predicted mean flow velocity field, analytical expressions for the aerodynamic coefficients, as a function of the pitch angle, are developed. The unsteady-state flow is characterised by formation of stable vortices behind the dish for most flow configurations, except at 60° and 150° pitch angles. At these angles vortex-shedding occurred with a strong flow oscillation extending downstream the dish. The calculations of dust particles trajectories provide a qualitative assessment of the deposition rate, dish orientation, and surface locations where dust accumulation is most likely to occur. The study also presents an initial assessment of the effectiveness of various windbreaks installed upstream of the dish in reducing aerodynamics drag.

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  • Christo, Farid C., 2012. "Numerical modelling of wind and dust patterns around a full-scale paraboloidal solar dish," Renewable Energy, Elsevier, vol. 39(1), pages 356-366.
    • Handle: RePEc:eee:renene:v:39:y:2012:i:1:p:356-366
    DOI: 10.1016/j.renene.2011.08.038
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    References listed on IDEAS

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    Cited by:

    1. Li, Longlong & Li, Huairui & Xu, Qian & Huang, Weidong, 2015. "Performance analysis of Azimuth Tracking Fixed Mirror Solar Concentrator," Renewable Energy, Elsevier, vol. 75(C), pages 722-732.
    2. Hachicha, Ahmed Amine & Al-Sawafta, Israa & Ben Hamadou, Dhouha, 2019. "Numerical and experimental investigations of dust effect on CSP performance under United Arab Emirates weather conditions," Renewable Energy, Elsevier, vol. 143(C), pages 263-276.
    3. Torres García, E. & Ogueta-Gutiérrez, M. & Ávila, S. & Franchini, S. & Herrera, E. & Meseguer, J., 2014. "On the effects of windbreaks on the aerodynamic loads over parabolic solar troughs," Applied Energy, Elsevier, vol. 115(C), pages 293-300.
    4. Sarver, Travis & Al-Qaraghuli, Ali & Kazmerski, Lawrence L., 2013. "A comprehensive review of the impact of dust on the use of solar energy: History, investigations, results, literature, and mitigation approaches," Renewable and Sustainable Energy Reviews, Elsevier, vol. 22(C), pages 698-733.
    5. Graham, Philip & Fadlallah, Sulaiman O. & Boulbrachene, Khaled, 2024. "Wind incidence and pedestal height effect on the flow behaviour and aerodynamic loading on a stand-alone solar parabolic dish," Renewable Energy, Elsevier, vol. 227(C).
    6. Yan, Jian & Peng, YouDuo & Liu, YongXiang, 2023. "Wind load and load-carrying optical performance of a large solar dish/stirling power system with 17.7 m diameter," Energy, Elsevier, vol. 283(C).
    7. Zemler, Matthew K. & Bohl, Greg & Rios, Oziel & Boetcher, Sandra K.S., 2013. "Numerical study of wind forces on parabolic solar collectors," Renewable Energy, Elsevier, vol. 60(C), pages 498-505.
    8. Hachicha, A.A. & Rodríguez, I. & Castro, J. & Oliva, A., 2013. "Numerical simulation of wind flow around a parabolic trough solar collector," Applied Energy, Elsevier, vol. 107(C), pages 426-437.
    9. Bouaddi, S. & Ihlal, A. & Fernández-García, A., 2017. "Comparative analysis of soiling of CSP mirror materials in arid zones," Renewable Energy, Elsevier, vol. 101(C), pages 437-449.
    10. Zuo, Hongyan & Tan, Jiqiu & Wei, Kexiang & Huang, Zhonghua & Zhong, Dingqing & Xie, Fuchun, 2021. "Effects of different poses and wind speeds on wind-induced vibration characteristics of a dish solar concentrator system," Renewable Energy, Elsevier, vol. 168(C), pages 1308-1326.

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