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Wind load and structural analysis for standalone solar parabolic trough collector

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  • Natraj,
  • Rao, B.N.
  • Reddy, K.S.

Abstract

Solar energy is one of the emerging technologies and the use of concentrating power technology is increasing in solar power plants. Parabolic trough collector is a concentrating solar power technology that is situated in the open terrain and subjected to wind loads. The structural stability of these devices under such loads determines the ability to accurately concentrate the rays at the absorber tube, which affects the overall optical and thermal efficiencies. A detailed numerical analysis is carried out at different wind loads and design conditions. It is observed that for a change in velocity from 5 m/s to 25 m/s, slope deviations increase from 1.21 mrad to 3.11 mrad at the surface of the reflector exceeding the shape quality of the mirror panels. Higher yaw angles and pitch angles of 60° and 120° are observed to be decisive in the design of collectors. Roof-mounted collectors experience a 40% higher drag force than ground-mounted collectors at a 0° pitch angle. For the Aluminium trough, the slope deviation at the surface of the reflector is higher by 4.62% than glass. The study will be helpful for engineers and scientists in the design of the parabolic trough collectors.

Suggested Citation

  • Natraj, & Rao, B.N. & Reddy, K.S., 2021. "Wind load and structural analysis for standalone solar parabolic trough collector," Renewable Energy, Elsevier, vol. 173(C), pages 688-703.
    • Handle: RePEc:eee:renene:v:173:y:2021:i:c:p:688-703
    DOI: 10.1016/j.renene.2021.04.007
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    References listed on IDEAS

    as
    1. Reddy, K.S. & Singla, Hitesh & Natraj,, 2019. "Gravity & wind load analysis and optical study of solar parabolic trough collector with composite facets using optimized modelling approach," Energy, Elsevier, vol. 189(C).
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    5. 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.
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    Cited by:

    1. Natraj, & Reddy, K.S., 2023. "Investigations of thermo-structural instability on the performance of solar parabolic trough collectors," Renewable Energy, Elsevier, vol. 202(C), pages 381-393.
    2. Rahimi Telwar, Donya & Khodaei, Jalal & Samimi-Akhijahani, Hadi, 2024. "Thermo-economic evaluation and structural simulation of a parabolic solar collector (PTC) integrated with a desalination system," Energy, Elsevier, vol. 299(C).
    3. Malan, Anish & Kumar, K. Ravi, 2022. "Investigation on wind-structure interaction of large aperture parabolic trough solar collector," Renewable Energy, Elsevier, vol. 193(C), pages 309-333.
    4. 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).

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