Partager

Document IIF

Effets de la céramique à ultra-haute permittivité sur la congélation de l'eau grâce à un système de congélation assisté par champ électrique à haute tension.

Effects of ultrahigh permittivity ceramic on water freezing by high voltage electric field-assisted freezing system.

Auteurs : WANG Q., WANG L., TIAN Y., ZHU Z., SUN D. W.

Type d'article : Article de la RIF

Résumé

To investigate the effect of ultra-high permittivity ceramic (UHPC) on water freezing, a UHPC-based high voltage electric field-assisted freezing system (UHPC-HVEFF) and a low permittivity acrylic-based high voltage electric field-assisted freezing system (LPA-HVEFF) were developed. The freezing behaviours of water under UHPC-HVEFF and LPA-HVEFF at 0, 3, 6, 9 kV were comparatively studied. Hierarchical cluster analysis (HCA) was used to visualize the difference between UHPC-HVEFF and LPA-HVEFF. COMSOL was used to simulate the distribution of electric field strength in the water sample under HVEF. It was found that the decreasing percentage of the supercooling degree of the water reached 34.9%, 89.2% and 90.3% under UHPC-HVEFF at 3, 6 and 9 kV, respectively, whereas those were only 2.40%, 10.4% and 24.6% under LPA-HVEFF at 3, 6 and 9 kV, respectively. Results from the simulation indicated that the electric field strength in the water under UHPC-HVEFF was on average 11.7-7.5 times that of LPA-HVEFF, thus contributing to the high freezing efficiency of UHPC-HVEFF. This study indicated that UHPC possessed great potential to increase the sample-treating capacity of HVEF-assisted freezing system.

Documents disponibles

Format PDF

Pages : 271-281

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 : Effects of ultrahigh permittivity ceramic on water freezing by high voltage electric field-assisted freezing system.
  • Identifiant de la fiche : 30028535
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 128
  • Date d'édition : 08/2021
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2021.02.022
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

Liens


Voir d'autres articles du même numéro (27)
Voir la source

Indexation