Étude d'une nano-émulsion de tétradécane pour le transport et l'accumulation d'énergie thermique.
Study on tetradecane nano-emulsion for thermal energy transportation and storage.
Numéro : pap. C2-044
Auteurs : FUMOTO K., KAWAJI M., SHALBART P., et al.
Résumé
Phase change emulsion is novel kind of heat storage and heat transfer fluids. It has characteristics as follows: greater apparent specific heat and higher heat transfer abilities in the phase change temperature range than conventional single phase heat transfer fluid. In particular, oil-in-water (O/W) 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 emulsions have been formed in the system water/Tween 80 + Span 80/Tetradecane by the low energy emulsification methods (e. g., phase inversion temperature method). 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. The results show that the viscosity of the nano-emulsion is lower than the micro-emulsion, which was made by same mixing ratio of surfactant and concentration of phase change material. Moreover, the surfactant concentration is found to contribute to the stability of the phase-change nano-emulsion. And the results indicate promising properties of phase change nano-emulsion for thermal storage applications.
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Détails
- Titre original : Study on tetradecane nano-emulsion for thermal energy transportation and storage.
- Identifiant de la fiche : 30005151
- Langues : Anglais
- Source : ACRA2010. Asian conference on refrigeration and air conditioning: Tokyo, Japan, June 7-9, 2010.
- Date d'édition : 07/06/2010
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