Rheological and Thermal Properties of Lubricating Oil Enhanced by the Effect of CuO and TiO2 Nano-Additives

  • Khalid A. Sukkar Department of Chemical Engineering / University of Technology/ Baghdad/ Iraq
  • Abullhassan A. Karamalluh Department of Mechanical Engineering / University of Technology/ Baghdad/ Iraq
  • Thulfiqar N. Jaber Department of Mechanical Engineering / University of Technology/ Baghdad/ Iraq

Abstract

The specifications of lubricating oil are fundamentally the final product of materials that have been added for producing the desired properties. In this research, spherical nanoparticles copper oxide (CuO) and titanium oxides (TiO2) are added to SAE 15W40 engine oil to study the thermal conductivity, stability, viscosity of nano-lubricants, which are prepared at different concentrations of 0.1%, 0.2%, 0.5%, and 1% by weight, and also their pour point, and flash point as five quality parameters. The obtained results show that CuO nanoparticles in all cases, give the best functionality and effect on engine oil with respect to TiO2. With 0.1 wt. % concentration, the thermal conductivity of CuO/oil and TiO2/oil increased by 7.27% and 4.54%, respectively. In the same time, the flash point of them increased by 12.62% and 9.3%, respectively in comparison with parent oil.

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Published
2019-05-15
How to Cite
Sukkar, K., Karamalluh, A., & Jaber, T. (2019). Rheological and Thermal Properties of Lubricating Oil Enhanced by the Effect of CuO and TiO2 Nano-Additives. Al-Khwarizmi Engineering Journal, 15(2), 24- 33. https://doi.org/10.22153/kej.2019.12.002