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Analytic optical design of linear Fresnel collectors with variable widths and shifts of mirrors

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  • Abbas, R.
  • Martínez-Val, J.M.

Abstract

Linear Fresnel collectors still present a large margin to improve efficiency. Solar fields of this kind installed until current time, both prototypes and commercial plants, are designed with widths and shifts of mirrors that are constant across the solar field. However, the physical processes that limit the width of the mirrors depend on their relative locations to the receiver; the same applies to shading and blocking effects, that oblige to have a minimum shift between mirrors. In this work such phenomena are studied analytically in order to obtain a coherent design, able to improve the efficiency with no increase in cost. A ray tracing simulation along one year has been carried out for a given design, obtaining a moderate increase in radiation collecting efficiency in comparison to conventional designs. Moreover, this analytic theory can guide future designs aiming at fully optimizing linear Fresnel collectors' performance.

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  • Abbas, R. & Martínez-Val, J.M., 2015. "Analytic optical design of linear Fresnel collectors with variable widths and shifts of mirrors," Renewable Energy, Elsevier, vol. 75(C), pages 81-92.
    • Handle: RePEc:eee:renene:v:75:y:2015:i:c:p:81-92
    DOI: 10.1016/j.renene.2014.09.029
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    References listed on IDEAS

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    Cited by:

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    2. Roberto Grena, 2024. "Geometrical Aspects of the Optics of Linear Fresnel Concentrators: A Review," Energies, MDPI, vol. 17(14), pages 1-39, July.
    3. Ma, Jun & Wang, Cheng-Long & Zhou, Yuan & Wang, Rui-Dong, 2021. "Optimized design of a linear Fresnel collector with a compound parabolic secondary reflector," Renewable Energy, Elsevier, vol. 171(C), pages 141-148.
    4. Abbas, R. & Sebastián, A. & Montes, M.J. & Valdés, M., 2018. "Optical features of linear Fresnel collectors with different secondary reflector technologies," Applied Energy, Elsevier, vol. 232(C), pages 386-397.
    5. Memme, Samuele & Fossa, Marco, 2024. "A novel approach for incidence angle modifier calculation of arbitrarily oriented linear Fresnel collectors: Theory, simulations and case studies," Renewable Energy, Elsevier, vol. 222(C).
    6. Edouard Montanet & Sylvain Rodat & Quentin Falcoz & Fabien Roget, 2023. "Experimental and Numerical Evaluation of Solar Receiver Heat Losses of a Commercial 9 MWe Linear Fresnel Power Plant," Energies, MDPI, vol. 16(23), pages 1-18, December.
    7. Ma, Jun & Liu, Fang & Liu, Chao & Wang, Rong-Ji & Wang, Cheng-Long, 2024. "Optimal curvature radius of cylindrical mirrors in linear Fresnel reflectors," Renewable Energy, Elsevier, vol. 229(C).
    8. Rovira, Antonio & Barbero, Rubén & Montes, María José & Abbas, Rubén & Varela, Fernando, 2016. "Analysis and comparison of Integrated Solar Combined Cycles using parabolic troughs and linear Fresnel reflectors as concentrating systems," Applied Energy, Elsevier, vol. 162(C), pages 990-1000.
    9. Sánchez-González, Alberto & Gómez-Hernández, Jesús, 2020. "Beam-down linear Fresnel reflector: BDLFR," Renewable Energy, Elsevier, vol. 146(C), pages 802-815.
    10. Taramona, Sebastián & González-Gómez, Pedro Ángel & Briongos, Javier Villa & Gómez-Hernández, Jesús, 2022. "Designing a flat beam-down linear Fresnel reflector," Renewable Energy, Elsevier, vol. 187(C), pages 484-499.
    11. Sebastián, Andrés & Abbas, Rubén & Valdés, Manuel & Casanova, Jesús, 2018. "Innovative thermal storage strategies for Fresnel-based concentrating solar plants with East-West orientation," Applied Energy, Elsevier, vol. 230(C), pages 983-995.
    12. Wang, Kun & He, Ya-Ling & Qiu, Yu & Zhang, Yuwen, 2016. "A novel integrated simulation approach couples MCRT and Gebhart methods to simulate solar radiation transfer in a solar power tower system with a cavity receiver," Renewable Energy, Elsevier, vol. 89(C), pages 93-107.
    13. Barbón, A. & Barbón, N. & Bayón, L. & Sánchez-Rodríguez, J.A., 2018. "Parametric study of the small scale linear Fresnel reflector," Renewable Energy, Elsevier, vol. 116(PA), pages 64-74.
    14. Eduardo González-Mora & Ma. Dolores Durán García, 2020. "Methodology for an Opto-Geometric Optimization of a Linear Fresnel Reflector for Direct Steam Generation," Energies, MDPI, vol. 13(2), pages 1-19, January.
    15. Memme, Samuele & Fossa, Marco, 2023. "Ray tracing analysis of linear Fresnel concentrators and the effect of plant azimuth on their optical efficiency," Renewable Energy, Elsevier, vol. 216(C).
    16. Abbas, R. & Martínez-Val, J.M., 2017. "A comprehensive optical characterization of linear Fresnel collectors by means of an analytic study," Applied Energy, Elsevier, vol. 185(P2), pages 1136-1151.
    17. Martín-Pomares, Luis & Martínez, Diego & Polo, Jesús & Perez-Astudillo, Daniel & Bachour, Dunia & Sanfilippo, Antonio, 2017. "Analysis of the long-term solar potential for electricity generation in Qatar," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 1231-1246.
    18. Santos, Andre V. & Canavarro, Diogo & Collares-Pereira, Manuel, 2021. "The gap angle as a design criterion to determine the position of linear Fresnel primary mirrors," Renewable Energy, Elsevier, vol. 163(C), pages 1397-1407.
    19. Santos, André Vitor & Canavarro, Diogo & Horta, Pedro & Collares-Pereira, Manuel, 2023. "On the comparison of parabolical and cylindrical primary mirrors for linear Fresnel solar concentrators," Renewable Energy, Elsevier, vol. 218(C).
    20. Vouros, Alexandros & Mathioulakis, Emmanouil & Papanicolaou, Elias & Belessiotis, Vassilis, 2020. "Performance evaluation of a linear Fresnel collector with catoptric subsets," Renewable Energy, Elsevier, vol. 156(C), pages 68-83.
    21. Cheng, Ze-Dong & Zhao, Xue-Ru & He, Ya-Ling & Qiu, Yu, 2018. "A novel optical optimization model for linear Fresnel reflector concentrators," Renewable Energy, Elsevier, vol. 129(PA), pages 486-499.
    22. Montanet, Edouard & Rodat, Sylvain & Falcoz, Quentin & Roget, Fabien, 2023. "Influence of topography on the optical performances of a Fresnel linear asymmetrical concentrator array: The case of the eLLO solar power plant," Energy, Elsevier, vol. 274(C).

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