Partager

Document IIF

Propriétés thermo-physiques du nanolubrifiant composite Al2O3-SiO2/PAG pour les systèmes frigorifiques.

Thermo-physical properties of Al2O3-SiO2/PAG composite nanolubricant for refrigeration system.

Auteurs : ZAWAWI N. N. M., AZMI W. H., REDHWAN A. A. M., et al.

Type d'article : Article, Article de la RIF

Résumé

Thermal conductivity and viscosity of the Al2O3-SiO2/PAG composite nanolubricants for 0.02 to 0.1% volume concentrations at a temperature range of 303 to 353?K were investigated. Al2O3 and SiO2 nanoparticles were dispersed in the Polyalkylene Glycol (PAG 46) lubricant using the two-step method of preparation. Thermal conductivity and viscosity were measured using KD2 Pro Thermal Properties Analyzer and LVDV-III Rheometer, respectively. The result shows that the thermal conductivity and viscosity of composite nanolubricants increase with volume concentration and decreases with temperature. Composite nanolubricants behave as Newtonian in the range of the temperatures and volume concentrations studied. The highest thermal conductivity increment is 2.41% at 0.1% concentration and temperature of 303?K. A maximum value of 9.71% in viscosity at 0.1% concentration is observed at temperature of 333?K. A new correlation model to predict the properties of composite nanolubricants has been proposed for applications in refrigeration systems.

Documents disponibles

Format PDF

Pages : 1-10

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 : Thermo-physical properties of Al2O3-SiO2/PAG composite nanolubricant for refrigeration system.
  • Identifiant de la fiche : 30021980
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 80
  • Date d'édition : 08/2017
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2017.04.024

Liens


Voir d'autres articles du même numéro (21)
Voir la source

Indexation