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Submerged finned heat exchanger latent heat storage design and its experimental verification

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  • Chiu, Justin N.W.
  • Martin, Viktoria
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    Abstract

    Thermal energy storage (TES) has shown potential in improving the overall performance in energy systems, through shifting of thermal load demand, and through matching of uneven energy availability in time and in space. Latent heat TESs demonstrate advantages over sensible heat TESs for their high storage density and small temperature swing; however, lack of accurate knowledge in novel material properties and lack in a holistic design protocol often lead to difficulties in reaching technically viable storage design. With the aim of proposing a sound latent heat based TES design-to-validation protocol, this paper covers material property characterization through Temperature-history (T-history) method, heat exchanger design through heat transfer modeling, and model validation through experimental verification. A model for submerged cylindrically finned heat exchanger latent heat storage unit with phase change material was built. The results show that performance of gelled salt-hydrate based TES can be assessed with a pure conduction based model. This material property characterization-to-model verification approach may serve as a standard in providing accurate storage design for performance evaluation.

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    Bibliographic Info

    Article provided by Elsevier in its journal Applied Energy.

    Volume (Year): 93 (2012)
    Issue (Month): C ()
    Pages: 507-516

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    Handle: RePEc:eee:appene:v:93:y:2012:i:c:p:507-516

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    Related research

    Keywords: Finned heat exchanger; Phase change material; T-history; Thermal energy storage; Modeling;

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    Cited by:
    1. Longeon, Martin & Soupart, Adèle & Fourmigué, Jean-François & Bruch, Arnaud & Marty, Philippe, 2013. "Experimental and numerical study of annular PCM storage in the presence of natural convection," Applied Energy, Elsevier, vol. 112(C), pages 175-184.
    2. Liu, Zhenyu & Yao, Yuanpeng & Wu, Huiying, 2013. "Numerical modeling for solid–liquid phase change phenomena in porous media: Shell-and-tube type latent heat thermal energy storage," Applied Energy, Elsevier, vol. 112(C), pages 1222-1232.
    3. Chiu, Justin N.W. & Martin, Viktoria, 2013. "Multistage latent heat cold thermal energy storage design analysis," Applied Energy, Elsevier, vol. 112(C), pages 1438-1445.

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