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Modular object-oriented methodology for the resolution of molten salt storage tanks for CSP plants

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  • Rodríguez, I.
  • Pérez-Segarra, C.D.
  • Lehmkuhl, O.
  • Oliva, A.

Abstract

Two-tank molten salt storages are the most widespread thermal energy storage technology within concentrated solar power plants. In spite of this, there are design aspects such as thermal losses control, optimisation of the storage or how these devices scale up with the increase in power capacity of the plant which still should be considered. In this sense, numerical modelling of these systems can be a powerful tool for reducing their cost. The present work aims at modelling molten salt tanks by proposing a parallel modular object-oriented methodology which considers the different elements of the storage (e.g. tank walls, insulation material, tank foundation, molten salt storage media, etc.) as independent systems. Each of these elements can be solved independently and using different levels of modelling (from global to fully three-dimensional models), while at the same time they are linked to each other through their boundary conditions. The mathematical models used, together with some illustrative examples of the application of the proposed methodology, are presented and discussed in detail.

Suggested Citation

  • Rodríguez, I. & Pérez-Segarra, C.D. & Lehmkuhl, O. & Oliva, A., 2013. "Modular object-oriented methodology for the resolution of molten salt storage tanks for CSP plants," Applied Energy, Elsevier, vol. 109(C), pages 402-414.
    • Handle: RePEc:eee:appene:v:109:y:2013:i:c:p:402-414
    DOI: 10.1016/j.apenergy.2012.11.008
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    References listed on IDEAS

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    1. Xu, Chao & Wang, Zhifeng & He, Yaling & Li, Xin & Bai, Fengwu, 2012. "Sensitivity analysis of the numerical study on the thermal performance of a packed-bed molten salt thermocline thermal storage system," Applied Energy, Elsevier, vol. 92(C), pages 65-75.
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    Cited by:

    1. 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.
    2. González, Ignacio & Pérez-Segarra, Carlos David & Lehmkuhl, Oriol & Torras, Santiago & Oliva, Assensi, 2016. "Thermo-mechanical parametric analysis of packed-bed thermocline energy storage tanks," Applied Energy, Elsevier, vol. 179(C), pages 1106-1122.
    3. Tagle-Salazar, Pablo D. & Prieto, Cristina & López-Román, Anton & Cabeza, Luisa F., 2023. "A transient heat losses model for two-tank storage systems with molten salts," Renewable Energy, Elsevier, vol. 219(P1).
    4. Hoz, Jordi de la & Martín, Helena & Montalà, Montserrat & Matas, José & Guzman, Ramon, 2018. "Assessing the 2014 retroactive regulatory framework applied to the concentrating solar power systems in Spain," Applied Energy, Elsevier, vol. 212(C), pages 1377-1399.
    5. Bonilla, Javier & Rodríguez-García, Margarita M. & Roca, Lidia & de la Calle, Alberto & Valenzuela, Loreto, 2018. "Design and experimental validation of a computational effective dynamic thermal energy storage tank model," Energy, Elsevier, vol. 152(C), pages 840-857.
    6. Lappalainen, Jari & Hakkarainen, Elina & Sihvonen, Teemu & Rodríguez-García, Margarita M. & Alopaeus, Ville, 2019. "Modelling a molten salt thermal energy system – A validation study," Applied Energy, Elsevier, vol. 233, pages 126-145.
    7. Cristina Prieto & Adrian Blindu & Luisa F. Cabeza & Juan Valverde & Guillermo García, 2023. "Molten Salts Tanks Thermal Energy Storage: Aspects to Consider during Design," Energies, MDPI, vol. 17(1), pages 1-19, December.
    8. Suárez, Christian & Iranzo, Alfredo & Pino, F.J. & Guerra, J., 2015. "Transient analysis of the cooling process of molten salt thermal storage tanks due to standby heat loss," Applied Energy, Elsevier, vol. 142(C), pages 56-65.
    9. Chacartegui, R. & Alovisio, A. & Ortiz, C. & Valverde, J.M. & Verda, V. & Becerra, J.A., 2016. "Thermochemical energy storage of concentrated solar power by integration of the calcium looping process and a CO2 power cycle," Applied Energy, Elsevier, vol. 173(C), pages 589-605.
    10. 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).

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