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Etude des propriétés thermophysiques d'une nano-émulsion huile-eau à changement de phase solide-liquide.

Study on physical properties of oil-water nano-emulsion with solid-liquid phase change.

Auteurs : FUMOTO K., KAWAJI M., SCHALBART P., et al.

Résumé

Phase-change emulsion is a novel kind of heat storage and heat transfer fluids. Its characteristics are as follows: greater apparent specific heat and higher heat transfer abilities in the phase change temperature range than a conventional single phase heat transfer fluid. In particular, oil-in-water emulsions are latent heat storage materials that have low melting points, thus offering attractive opportunities for heat transfer enhancement, and thermal energy transportation and storage. In this paper, milky white oil-in-water nano-emulsions have been formed in the system water/surfactants/tetradecane by the low energy emulsification methods. The relations between the component ratio of the emulsion and the droplet sizes, and the stability of the resulting emulsions have been determined using dynamic light scattering and vibration viscometer in the temperature region involving solid-liquid phase change. The results show that the surfactant concentration is found to contribute to the stability of the phase-change nano-emulsion. It is proven that the nano-emulsion phase can be changed by the mixing process.

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Pages : 2010-5

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Détails

  • Titre original : Study on physical properties of oil-water nano-emulsion with solid-liquid phase change.
  • Identifiant de la fiche : 2010-1481
  • Langues : Anglais
  • Source : 9th Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: Sofia, Bulgaria, September 29-October 1, 2010.
  • Date d'édition : 01/09/2010

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