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Phase separation and supercooling of a latent heat-storage material

Author

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  • Byung Chul Shin,
  • Sang Done Kim,
  • Won-Hoon, Park

Abstract

A super-absorbent polymer made from an acrylic acid copolymer is proposed as an effective thickener to prevent undesirable phase separation of disodium sulfate decahydrate (Glauber's salt). The supercooling of the thickened Glauber's salt is reduced to 3–4 °C by using a borax as a nucleating agent. Phase separation has been completely prevented by using a super-absorbent polymer with a minor decrease in the latent heat. From calorimetric measurements of mixtures of disodium sulfate decahydrate, super-absorbent polymer and borax, we find, respectively, the following latent heat, thermal conductivity, and heat capacities: 227 J/g, 0.64 W/m-K, 3.4 J/g-K in the solid state and 4.6 J/g-K in the gelled state.

Suggested Citation

  • Byung Chul Shin, & Sang Done Kim, & Won-Hoon, Park, 1989. "Phase separation and supercooling of a latent heat-storage material," Energy, Elsevier, vol. 14(12), pages 921-930.
    • Handle: RePEc:eee:energy:v:14:y:1989:i:12:p:921-930
    DOI: 10.1016/0360-5442(89)90047-9
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    Cited by:

    1. Zahir, Md. Hasan & Mohamed, Shamseldin A. & Saidur, R. & Al-Sulaiman, Fahad A., 2019. "Supercooling of phase-change materials and the techniques used to mitigate the phenomenon," Applied Energy, Elsevier, vol. 240(C), pages 793-817.
    2. Rajendran Prabakaran & Palanisamy Dhamodharan & Anbalagan Sathishkumar & Paride Gullo & Muthuraman Ponrajan Vikram & Saravanan Pandiaraj & Abdullah Alodhayb & Ghada A. Khouqeer & Sung-Chul Kim, 2023. "An Overview of the State of the Art and Challenges in the Use of Gelling and Thickening Agents to Create Stable Thermal Energy Storage Materials," Energies, MDPI, vol. 16(8), pages 1-24, April.
    3. Khan, Mohammed Mumtaz A. & Saidur, R. & Al-Sulaiman, Fahad A., 2017. "A review for phase change materials (PCMs) in solar absorption refrigeration systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 76(C), pages 105-137.

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