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Une nano-émulsion de matériaux à changement de phase pour des applications de refroidissement.

A phase change material nano-emulsion for cooling applications.

Numéro : 2031

Auteurs : AGRESTI F., ARX S. von, O'NEILL P., ROSSI S., BARISON S.

Résumé

A nano-emulsion based on commercial PCM Rubitherm RT21HC has been successfully prepared in water with a concentration of 16 wt% and an average droplet size of less than 120 nm. Carbon Nanohorns have been incorporated into the dispersed phase as a nucleating agent. The nano-emulsion has been prepared in a batch of 200 mL with a solvent-assisted method and it has been characterized by DLS, Polarisation Intensity Differential Scattering, Rheometry, DSC, Thermoacoustic Thermal Diffusivity. Heat transfer capability has been tested with a Mettler Toledo EasyMax Synthesis Reactor. The system showed interesting stability and rheological properties; however, further work is needed to overcome some usual problems related to nano-confined systems, as the reduction of expected latent heat and PCM solidification supercooling. It can be estimated that this system shows an increase of apparent specific heat of about 8% with respect to pure water in a working temperature range of 18°C.

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Format PDF

Pages : 7

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  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : A phase change material nano-emulsion for cooling applications.
  • Identifiant de la fiche : 30028869
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 13rd IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: (online) Vicenza, Italy, September 1-3, 2021.
  • Date d'édition : 01/09/2021
  • DOI : http://dx.doi.org/10.18462/iir.PCM.2021.2031

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