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Étude expérimentale sur les propriétés physiques d’une huile PVE contenant des nanoparticules d’oxyde de cuivre et son mélange avec un frigorigène.

Experimental study on physical properties of CuO - PVE nano-oil and its mixture with refrigerant.

Numéro : pap. 1569

Auteurs : MOTOZAWA M., MAKIDA N., FUKUTA M.

Résumé

A nano-oil is a suspension of nano-order particles in refrigeration oil. Recently, the application of nano-oil as the lubrication oil for refrigerant compressors is proposed to improve refrigeration cycle efficiency. In this study, physical properties of nano-oil such as thermal conductivity, viscosity and dielectric constant were measured experimentally. In addition, those of nano-oil / refrigerant mixture were also measured under pressurized condition. Nano-oil was prepared by dispersing oxidized copper (CuO) nanoparticles into refrigeration oil (Polyvinyl ether; PVE) with the volume fraction of 0.5, 1.0 and 3.0 vol%. Measurement of physical properties of nano-oil was performed under the temperature ranging from 30 to 100°C. The result shows that thermal conductivity, viscosity and dielectric constant of the nano-oil are larger than those of the base oil. The increment of these properties becomes large with volume fraction of nano-particles. On the other hand, measurement of physical properties of PVE-CuO nano-oil / R410A mixture was performed under the 30°C of temperature and up to 1.3 MPa of pressure. As a result, thermal conductivity, viscosity and dielectric constant of nano-oil / refrigerant mixture increases compared with those without mixing nano particles for low refrigerant concentration, but the effect of adding nanoparticles with pure oil becomes weak with increasing refrigerant concentration.

Documents disponibles

Format PDF

Pages : 9

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

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

Détails

  • Titre original : Experimental study on physical properties of CuO - PVE nano-oil and its mixture with refrigerant.
  • Identifiant de la fiche : 30024375
  • Langues : Anglais
  • Source : 2018 Purdue Conferences. 24th International Compressor Engineering Conference at Purdue.
  • Date d'édition : 09/07/2018

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