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Document IIF

Caractéristiques d’absorption du rayonnement et de captage de chaleur d’un matériau à changement de phase composite graphène/paraffine.

Radiation absorption and heat collection characteristics of graphene/paraffin composite phase change material.

Numéro : pap. n. 1325

Auteurs : OUYANG L., XU G., YAN J., et al.

Résumé

Based on the light-absorbing characteristic of graphene/paraffin composite phase change material (PCM), the solar radiation is directly absorbed by the nanoparticles added inside. The purpose of this study is to investigate the performance of heat collecting of composite PCM and to explore the possibility of using it in integrated system of heat collection and storage. The composite PCM with mass fractions of 0.01%, 0.025%, 0.05% and 0.1% were prepared. The extinction and absorption coefficient in solid and liquid phase was tested. The experiment was conducted to research the thermal performance of composite PCM. It was concluded that the addition of graphene nanoparticles into paraffin significantly improves the absorption characteristics. Moreover, the composite PCM melted from the inside, which significantly enhanced the performance. This study verifies the feasibility of the composite PCM working in solar energy collecting and accumulating heat directly.

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Pages : 8

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Détails

  • Titre original : Radiation absorption and heat collection characteristics of graphene/paraffin composite phase change material.
  • Identifiant de la fiche : 30026526
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.1325

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