Partager

Document IIF

Nanoressorts en silice amorphe : un candidat pour améliorer la performance du transfert de chaleur par condensation.

Amorphous silica nanosprings: a candidate for improving condensation heat transfer performance.

Numéro : pap. n. 1772

Auteurs : SCHMIESING N. C., SOMMERS A. D., CORTI G.

Résumé

In this work, heat transfer data are presented for water vapor condensing on the outside of aluminum tubes in a purpose-built environmental chamber. Testing was performed both before and after coating the tube with an amorphous silica nanospring coating of prescribed thickness. Silica nanosprings offer several advantages over other one-dimensional nanostructures including high surface area (350 m2 g-1), mild growth conditions (350°C and atmospheric pressure), thermal stability <1000°C in air, innate
hydrophilicity, and photolithography compatibility. Depending on the functionalization that is performed, either hydrophilic or super-hydrophobic conditions can be achieved. Special focus is given to baseline testing, benchmarking the experimental setup, and the performance of the silica nanospring coating. Data are interpreted in terms of coating thickness, wettability, and other environmental factors with the overall aim of improving condensation heat transfer performance.

Documents disponibles

Format PDF

Pages : 8

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Amorphous silica nanosprings: a candidate for improving condensation heat transfer performance.
  • Identifiant de la fiche : 30026768
  • 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.2019.1772
  • Notes :

    Keynote


Liens


Voir d'autres communications du même compte rendu (632)
Voir le compte rendu de la conférence

Indexation