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

  • Chiu, Justin N.W.
  • Martin, Viktoria
Registered author(s):

    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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    File URL: http://www.sciencedirect.com/science/article/pii/S0306261911008142
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    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
    DOI: 10.1016/j.apenergy.2011.12.019
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    1. Wang, Weilong & Yang, Xiaoxi & Fang, Yutang & Ding, Jing & Yan, Jinyue, 2009. "Enhanced thermal conductivity and thermal performance of form-stable composite phase change materials by using [beta]-Aluminum nitride," Applied Energy, Elsevier, vol. 86(7-8), pages 1196-1200, July.
    2. 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.
    3. Medrano, M. & Yilmaz, M.O. & Nogués, M. & Martorell, I. & Roca, Joan & Cabeza, Luisa F., 2009. "Experimental evaluation of commercial heat exchangers for use as PCM thermal storage systems," Applied Energy, Elsevier, vol. 86(10), pages 2047-2055, October.
    4. Lamberg, Piia, 2004. "Approximate analytical model for two-phase solidification problem in a finned phase-change material storage," Applied Energy, Elsevier, vol. 77(2), pages 131-152, February.
    5. He, Bo & Martin, Viktoria & Setterwall, Fredrik, 2004. "Phase transition temperature ranges and storage density of paraffin wax phase change materials," Energy, Elsevier, vol. 29(11), pages 1785-1804.
    6. Tyagi, Vineet Veer & Buddhi, D., 2007. "PCM thermal storage in buildings: A state of art," Renewable and Sustainable Energy Reviews, Elsevier, vol. 11(6), pages 1146-1166, August.
    7. Sharma, Atul & Tyagi, V.V. & Chen, C.R. & Buddhi, D., 2009. "Review on thermal energy storage with phase change materials and applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(2), pages 318-345, February.
    8. Wang, Weilong & Yang, Xiaoxi & Fang, Yutang & Ding, Jing & Yan, Jinyue, 2009. "Preparation and thermal properties of polyethylene glycol/expanded graphite blends for energy storage," Applied Energy, Elsevier, vol. 86(9), pages 1479-1483, September.
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