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Heat transfer in a latent heat-storage system using MgCl2·6H2O at the melting point

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  • Choi, Jong Chan
  • Kim, Sang Done

Abstract

Heat-transfer characteristics during melting of magnesium chloride hexahydrate (MgCl2·6H2O MCHH) have been determined for circular finned- and unfinned-tube systems. The effects of inlet temperature and flow rate of the heat transfer fluid (HTF) on the heat-transfer characteristics have been determined. Heat transfer from the tube to the phase-change material (PCM) is strongly influenced by natural convection of melted PCM, especially in the unfinned-tube system. The measured melting-front velocities in the unfinned-tube system agree well with analytical predictions. The amounts of heat storage in three different systems have been correlated in terms of Fourier, Stefan, and Reynolds numbers to provide basic data for designing unfinned-and finned-tube heat-storage units.

Suggested Citation

  • Choi, Jong Chan & Kim, Sang Done, 1995. "Heat transfer in a latent heat-storage system using MgCl2·6H2O at the melting point," Energy, Elsevier, vol. 20(1), pages 13-25.
    • Handle: RePEc:eee:energy:v:20:y:1995:i:1:p:13-25
    DOI: 10.1016/0360-5442(94)00051-4
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    1. Dubey, Abhayjeet kumar & Sun, Jingyi & Choudhary, Tushar & Dash, Madhusmita & Rakshit, Dibakar & Ansari, M Zahid & Ramakrishna, Seeram & Liu, Yong & Nanda, Himansu Sekhar, 2023. "Emerging phase change materials with improved thermal efficiency for a clean and sustainable environment: An approach towards net zero," Renewable and Sustainable Energy Reviews, Elsevier, vol. 182(C).
    2. Tunçbilek, Kadir & Sari, Ahmet & Tarhan, Sefa & Ergüneş, Gazanfer & Kaygusuz, Kamil, 2005. "Lauric and palmitic acids eutectic mixture as latent heat storage material for low temperature heating applications," Energy, Elsevier, vol. 30(5), pages 677-692.
    3. Tay, N.H.S. & Bruno, F. & Belusko, M., 2013. "Experimental investigation of dynamic melting in a tube-in-tank PCM system," Applied Energy, Elsevier, vol. 104(C), pages 137-148.
    4. Wang, Yan & Yu, Kaixiang & Peng, Hao & Ling, Xiang, 2019. "Preparation and thermal properties of sodium acetate trihydrate as a novel phase change material for energy storage," Energy, Elsevier, vol. 167(C), pages 269-274.
    5. Mohamed, Shamseldin A. & Al-Sulaiman, Fahad A. & Ibrahim, Nasiru I. & Zahir, Md. Hasan & Al-Ahmed, Amir & Saidur, R. & Yılbaş, B.S. & Sahin, A.Z., 2017. "A review on current status and challenges of inorganic phase change materials for thermal energy storage systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 70(C), pages 1072-1089.
    6. Agyenim, Francis & Hewitt, Neil & Eames, Philip & Smyth, Mervyn, 2010. "A review of materials, heat transfer and phase change problem formulation for latent heat thermal energy storage systems (LHTESS)," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(2), pages 615-628, February.
    7. Yawen Ren & Hironao Ogura, 2023. "Dynamic Simulations on Enhanced Heat Recovery Using Heat Exchange PCM Fluid for Solar Collector," Energies, MDPI, vol. 16(7), pages 1-18, March.
    8. Wenwen Ye & Dourna Jamshideasli & Jay M. Khodadadi, 2023. "Improved Performance of Latent Heat Energy Storage Systems in Response to Utilization of High Thermal Conductivity Fins," Energies, MDPI, vol. 16(3), pages 1-83, January.

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