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Thermal-energy storage: Dynamic performance characteristics of cans each containing a phase-change material, assembled as a packed-bed

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  • Gonçalves, L.C.C.
  • Probert, S.D.

Abstract

The transient behaviour of a latent-heat thermal-energy store has been measured experimentally and predicted via a computer model. Experimental results obtained from temperature-step input tests for this packed-bed store, incorporating a phase-change material (MgCl26H2O), which was encapsulated in metal cans, are presented. Film-side heat-transfer coefficients appropriate to the thermal charge and discharge modes for wide ranges of Reynolds number and swing temperature have been deduced. The variations of the overall heat-transfer coefficient (with time) as well as its mean integrated value has been obtained. A non-dimensional heat-transfer parameter describing the behaviour of the packed-bed, namely the Gonçalves number, is introduced and a mean integrated value for it determined in order to characterise the thermal response of the energy store. Predicted dynamic performances, obtained via computer simulations, have been corroborated to within experimental error, by observations.

Suggested Citation

  • Gonçalves, L.C.C. & Probert, S.D., 1993. "Thermal-energy storage: Dynamic performance characteristics of cans each containing a phase-change material, assembled as a packed-bed," Applied Energy, Elsevier, vol. 45(2), pages 117-155.
    • Handle: RePEc:eee:appene:v:45:y:1993:i:2:p:117-155
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    Cited by:

    1. Dutil, Yvan & Rousse, Daniel R. & Salah, Nizar Ben & Lassue, Stéphane & Zalewski, Laurent, 2011. "A review on phase-change materials: Mathematical modeling and simulations," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(1), pages 112-130, January.
    2. Silva, Pedro D. & Gonçalves, L. C. & Pires, L., 2002. "Transient behaviour of a latent-heat thermal-energy store: numerical and experimental studies," Applied Energy, Elsevier, vol. 73(1), pages 83-98, September.
    3. Pirasaci, Tolga & Wickramaratne, Chatura & Moloney, Francesca & Yogi Goswami, D. & Stefanakos, Elias, 2017. "Dynamics of phase change in a vertical PCM capsule in the presence of radiation at high temperatures," Applied Energy, Elsevier, vol. 206(C), pages 498-506.
    4. Felix Regin, A. & Solanki, S.C. & Saini, J.S., 2009. "An analysis of a packed bed latent heat thermal energy storage system using PCM capsules: Numerical investigation," Renewable Energy, Elsevier, vol. 34(7), pages 1765-1773.
    5. Miranda Fuentes, Johann & Johannes, Kévyn & Kuznik, Frédéric & Cosnier, Matthieu & Virgone, Joseph, 2013. "Melting with convection and radiation in a participating phase change material," Applied Energy, Elsevier, vol. 109(C), pages 454-461.
    6. Sanderson, T. M. & Cunningham, G. T., 1995. "Performance and efficient design of packed bed thermal storage systems. Part 1," Applied Energy, Elsevier, vol. 50(2), pages 119-132.
    7. 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.

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