New Concept for High Temperature Thermal Energy Storage Using a Concrete Tank
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Date
2022
Authors
Cabeza, Luisa F.
Vérez, David
Zsembinszki, Gabriel
Borri, Emiliano
Prieto, Cristina
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The use of concrete is showing great potential as thermal energy storage material for concentrating solar power
plants (CSP) due to its versatility, relatively low cost, and the possibility to reach a high operating temperature,
above 500ºC thus increasing the plant efficiency. However, actual configurations based on concrete show different
drawbacks including difficulties during the manufacturing on-site, different thermal expansion coefficients
between concrete and pipes, and poor thermal conductivity of concrete. In order to address those challenges, this
study proposes a new TES concrete tank concept based on three main pillars: modularity, improved concrete
formulation, and direct contact concept. A preliminary assessment of the thermal performances of the new concept
was analyzed through simulations showing the temperature distribution of the modules.
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EuroSun 2022. ISES and IEA SHC International Conference on Solar Energy for Buildings and Industry. 25 - 29 September 2022, Kassel, Germany