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Some fatty acids as phase-change thermal energy storage materials

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  • Hasan, A.
  • Sayigh, A.A.

Abstract

Thermal energy storage in some fatty acids as phase-change materials has been investigated for a domestic water heating system. The selected fatty acids were myristic acid, palmitic acid and stearic acid, with melting temperatures between 50° and 70°C. Thermophysical properties of those acids were determined using differential scanning calorimetry (DSC). The density and dilation volumes were determined by a simple dilatometry technique. The degree of degradation after a large number of melting and solidification cycles was examined. Little reduction of the latent heat was found after 450 heating cycles (20–80°C), while a reduction of up to one-third of the latent heat was found after 21 severe heating cycles (20–150°C).

Suggested Citation

  • Hasan, A. & Sayigh, A.A., 1994. "Some fatty acids as phase-change thermal energy storage materials," Renewable Energy, Elsevier, vol. 4(1), pages 69-76.
    • Handle: RePEc:eee:renene:v:4:y:1994:i:1:p:69-76
    DOI: 10.1016/0960-1481(94)90066-3
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    References listed on IDEAS

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    1. Aboul-Enein, S. & Olofa, S.A., 1991. "Thermophysical properties of heat-of-fusion storage materials for cooling applications," Renewable Energy, Elsevier, vol. 1(5), pages 791-797.
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