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Thermal storage in a MW scale. Molten salt solar thermal pilot facility: Plant description and commissioning experiences

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  • Prieto, Cristina
  • Osuna, Rafael
  • Fernández, A. Inés
  • Cabeza, Luisa F.

Abstract

In 2008, following its R&D strategy roadmap for Concentrated Solar Power, Abengoa designed, built and tested a unique Molten Salts pilot plant at the representative scale of 8 MWhth, coupled with a trough oil loop. The objectives of this project were based on evaluating the technology at a scale at which the results are sufficiently representative of the real circumstances facing a commercial plant that utilizes this storage technology. To this end, the MS-TES plant was brought into operation on January 19th, 2009, been the first demo plant of indirect double tank storage in operation in the world. Key points such a material corrosion, analysis of possible leakage points, calculation of performance or true efficiency of the storage (including a thorough assessment of thermal losses) and analysis of plant operation are the lines that have been analysed at this plant. Operational aspects such as the mechanical assembling, the pre-heating, the filling up and plant performance were deeply addressed. Key components as the storage tanks, the heat exchanger, the molten salts pumps, the heat-tracing systems or valves and instrumentation were tested. In this first paper, the description and commissioning of the plant is presented together a set of lessons learnt to be applied at the commercial plant scale.

Suggested Citation

  • Prieto, Cristina & Osuna, Rafael & Fernández, A. Inés & Cabeza, Luisa F., 2016. "Thermal storage in a MW scale. Molten salt solar thermal pilot facility: Plant description and commissioning experiences," Renewable Energy, Elsevier, vol. 99(C), pages 852-866.
    • Handle: RePEc:eee:renene:v:99:y:2016:i:c:p:852-866
    DOI: 10.1016/j.renene.2016.07.053
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    Citations

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    Cited by:

    1. González-Roubaud, Edouard & Pérez-Osorio, David & Prieto, Cristina, 2017. "Review of commercial thermal energy storage in concentrated solar power plants: Steam vs. molten salts," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 133-148.
    2. Prieto, Cristina & Osuna, Rafael & Fernández, A. Inés & Cabeza, Luisa F., 2016. "Molten salt facilities, lessons learnt at pilot plant scale to guarantee commercial plants; heat losses evaluation and correction," Renewable Energy, Elsevier, vol. 94(C), pages 175-185.
    3. Abokersh, Mohamed Hany & Norouzi, Masoud & Boer, Dieter & Cabeza, Luisa F. & Casa, Gemma & Prieto, Cristina & Jiménez, Laureano & Vallès, Manel, 2021. "A framework for sustainable evaluation of thermal energy storage in circular economy," Renewable Energy, Elsevier, vol. 175(C), pages 686-701.
    4. Bossink, Bart A.G., 2017. "Demonstrating sustainable energy: A review based model of sustainable energy demonstration projects," Renewable and Sustainable Energy Reviews, Elsevier, vol. 77(C), pages 1349-1362.
    5. Xu, Z.Y. & Wang, R.Z. & Yang, Chun, 2019. "Perspectives for low-temperature waste heat recovery," Energy, Elsevier, vol. 176(C), pages 1037-1043.
    6. Cristina Prieto & Sonia Fereres & Luisa F. Cabeza, 2020. "The Role of Innovation in Industry Product Deployment: Developing Thermal Energy Storage for Concentrated Solar Power," Energies, MDPI, vol. 13(11), pages 1-19, June.
    7. Xiaoming Zhang & Yuting Wu & Chongfang Ma & Qiang Meng & Xiao Hu & Cenyu Yang, 2019. "Experimental Study on Temperature Distribution and Heat Losses of a Molten Salt Heat Storage Tank," Energies, MDPI, vol. 12(10), pages 1-14, May.
    8. Wei, Youxing & Luo, Xianglong & Liang, Yingzong & Chen, Jianyong & Yang, Zhi & He, Jiacheng & Wang, Chao & Chen, Ying, 2022. "Time series aggregation-based design and operation optimization of a solar-driven organic Rankine cycle incorporating variation of environmental temperature and solar radiation," Renewable Energy, Elsevier, vol. 192(C), pages 87-106.
    9. Yu, Qiang & Li, Xiaolei & Wang, Zhifeng & Zhang, Qiangqiang, 2020. "Modeling and dynamic simulation of thermal energy storage system for concentrating solar power plant," Energy, Elsevier, vol. 198(C).
    10. Prieto, Cristina & Fereres, Sonia & Ruiz-Cabañas, Francisco Javier & Rodriguez-Sanchez, Alfonso & Montero, Cristina, 2020. "Carbonate molten salt solar thermal pilot facility: Plant design, commissioning and operation up to 700 °C," Renewable Energy, Elsevier, vol. 151(C), pages 528-541.
    11. Cristina Prieto & Alfonso Rodríguez-Sánchez & F. Javier Ruiz-Cabañas & Luisa F. Cabeza, 2019. "Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid," Energies, MDPI, vol. 12(12), pages 1-20, June.

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