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Geopolymer Concrete Performance Study for High-Temperature Thermal Energy Storage (TES) Applications

Author

Listed:
  • Mohammad Rahjoo

    (Centro de Física de Materiales, CSIC-UPV/EHU, 20018 Donostia-San Sebastian, Spain)

  • Guido Goracci

    (Centro de Física de Materiales, CSIC-UPV/EHU, 20018 Donostia-San Sebastian, Spain)

  • Pavel Martauz

    (Považská Cementáreň Cement Plant (PCLA), 01863 Ladce, Slovakia)

  • Esther Rojas

    (Plataforma Solar de Almería (PSA-CIEMAT), 28040 Madrid, Spain)

  • Jorge S. Dolado

    (Centro de Física de Materiales, CSIC-UPV/EHU, 20018 Donostia-San Sebastian, Spain
    Donostia International Physics Center (DIPC), 20018 Donostia-San Sebastian, Spain)

Abstract

Solar energy is an energy intermittent source that faces a substantial challenge for its power dispatchability. Hence, concentrating solar power (CSP) plants and solar process heat (SPH) applications employ thermal energy storage (TES) technologies as a link between power generation and optimal load distribution. Ordinary Portland cement (OPC)-based materials are widely used in sensible TES, but their use is limited to operation temperatures below 400 to 500 °C because of thermal degradation processes. This work proposes a geopolymer (GEO)-based concrete as a suitable alternative to OPC concrete for TES that withstands high running temperatures, higher than 500 °C. To this end, thermophysical properties of a geopolymer-based concrete sample were initially measured experimentally; later, energy storage capacity and thermal behavior of the GEO sample were modeled numerically. In fact, different thermal scenarios were modeled, revealing that GEO-based concrete can be a sound choice due to its thermal energy storage capacity, high thermal diffusivity and capability to work at high temperature regimes.

Suggested Citation

  • Mohammad Rahjoo & Guido Goracci & Pavel Martauz & Esther Rojas & Jorge S. Dolado, 2022. "Geopolymer Concrete Performance Study for High-Temperature Thermal Energy Storage (TES) Applications," Sustainability, MDPI, vol. 14(3), pages 1-19, February.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:3:p:1937-:d:744711
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    References listed on IDEAS

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    1. Claudio Ferone & Francesco Colangelo & Domenico Frattini & Giuseppina Roviello & Raffaele Cioffi & Rosa Di Maggio, 2014. "Finite Element Method Modeling of Sensible Heat Thermal Energy Storage with Innovative Concretes and Comparative Analysis with Literature Benchmarks," Energies, MDPI, vol. 7(8), pages 1-26, August.
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    Cited by:

    1. Luisa F. Cabeza & David Vérez & Gabriel Zsembinszki & Emiliano Borri & Cristina Prieto, 2022. "Key Challenges for High Temperature Thermal Energy Storage in Concrete—First Steps towards a Novel Storage Design," Energies, MDPI, vol. 15(13), pages 1-12, June.

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