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Modeling and improvement of a packed bed latent heat storage filled with non-spherical encapsulated PCM-Elements

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  • Grabo, Matti
  • Acar, Emre
  • Kenig, Eugeny Y.

Abstract

A thermal energy storage filled with a packed bed of macro-encapsulated latent heat storage elements is studied. Such a storage can be used in combination with, for example, a solar thermal heating system. Conventional capsule designs based on spherical shape do not allow for optimal packing density and heat transfer within the capsule. Therefore, capsule designs were introduced, which deviate from this basic geometry. These designs are built upon a super-ellipsoidal shape with multiple surface extensions, e.g. holes and grooves, in order to enhance heat transfer.

Suggested Citation

  • Grabo, Matti & Acar, Emre & Kenig, Eugeny Y., 2021. "Modeling and improvement of a packed bed latent heat storage filled with non-spherical encapsulated PCM-Elements," Renewable Energy, Elsevier, vol. 173(C), pages 1087-1097.
    • Handle: RePEc:eee:renene:v:173:y:2021:i:c:p:1087-1097
    DOI: 10.1016/j.renene.2021.04.022
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    References listed on IDEAS

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    1. Regin, A. Felix & Solanki, S.C. & Saini, J.S., 2008. "Heat transfer characteristics of thermal energy storage system using PCM capsules: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(9), pages 2438-2458, December.
    2. Mao, Qianjun & Zhang, Yamei, 2020. "Thermal energy storage performance of a three-PCM cascade tank in a high-temperature packed bed system," Renewable Energy, Elsevier, vol. 152(C), pages 110-119.
    3. Jeroen Mol & Mina Shahi & Amirhoushang Mahmoudi, 2020. "Numerical Modeling of Thermal Storage Performance of Encapsulated PCM Particles in an Unstructured Packed Bed," Energies, MDPI, vol. 13(23), pages 1-16, December.
    4. de Gracia, Alvaro & Cabeza, Luisa F., 2017. "Numerical simulation of a PCM packed bed system: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 69(C), pages 1055-1063.
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    Cited by:

    1. Guo, Weimin & He, Zhaoyu & Zhang, Yuting & Zhang, Peng, 2022. "Thermal performance of the packed bed thermal energy storage system with encapsulated phase change material," Renewable Energy, Elsevier, vol. 196(C), pages 1345-1356.
    2. Mao, Qianjun & Zhang, Yufei, 2023. "Effect of unsteady heat source condition on thermal performance for cascaded latent heat storage packed bed," Energy, Elsevier, vol. 284(C).
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    4. Andrea Frazzica & Valeria Palomba & Angelo Freni, 2023. "Development and Experimental Characterization of an Innovative Tank-in-Tank Hybrid Sensible–Latent Thermal Energy Storage System," Energies, MDPI, vol. 16(4), pages 1-18, February.

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