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Experimental investigation on thermo-physical properties of metal oxide composite nanolubricants.

Author(s) : ZAWAWI N. N. M., AZMI W. H., REDHWAN A. A. M., et al.

Type of article: Article, IJR article

Summary

The thermal conductivity and dynamic viscosity of three different combinations of metal oxide composite nanolubricant had been investigated at different nanoparticle volume concentrations (0.02 to 0.1%) and different temperatures (303–353?K). The prepared Al2O3SiO2, Al2O3TiO2 and TiO2SiO2 composite metal oxide nanoparticle was dispersed in Polyalkylene Glycol (PAG 46) lubricant by espousing the two-step preparation method. The thermal and viscosity experiment was performed using KD2 Pro Thermal Properties Analyzer and LVDV-III Rheometer, respectively. All the considered metal oxide composite nanolubricants were witnessed to behave as Newtonian fluids. A maximum viscosity enhancement of 20.50% recorded for Al2O3TiO2/PAG nanolubricant with 0.1% nanoparticle volume concentration and at the temperature of 303?K. Whereas, the highest thermal conductivity improvement recorded for Al2O3SiO2/PAG nanolubricant with 2.41% improvement at 0.1% nanoparticle concentration and temperature of 303?K. A new regression model to estimate the dynamic viscosity and thermal conductivity of metal oxide composite nanolubricants were proposed based on the finding obtained.

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Pages: 11-21

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Details

  • Original title: Experimental investigation on thermo-physical properties of metal oxide composite nanolubricants.
  • Record ID : 30023733
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 89
  • Publication date: 2018/05
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2018.01.015

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