Rheological properties of TiO2/POE nanolubricant for automotive air conditioning system

Khamisa, Abdul Hamid and Wan Azmi, Wan Hamzah and Mohd Yusof, Taib and Mohd Farid, Ismail and Anwar Ilmar, Ramadhan (2022) Rheological properties of TiO2/POE nanolubricant for automotive air conditioning system. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 90 (1). pp. 10-22. ISSN 2289-7879. (Published)

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The enhancement of nanolubricant rheological properties can improve the performance of automotive air-conditioning systems. The rheological properties of the TiO2/POE nanolubricant were investigated in this study at 0.01 to 0.1% volume concentrations and temperatures ranging from 0 to 100°C. TiO2 nanoparticles were dispersed in the base lubricant of Polyol-ester (POE RL68H) lubricant in two steps. The dynamic viscosity was measured with an Anton-Paar Rotational Rheometer. According to the findings, the TiO2/POE nanolubricant behaved as Newtonian fluids at all volume concentrations and temperatures. The dynamic viscosity increment of nanolubricants up to 1.75% only occurred for 0.1% volume concentration and temperature of 90 to 100°C. Meanwhile, when compared to POE lubricant, nanolubricants with volume concentrations of 0.01 and 0.05% showed a decrement trend in dynamic viscosity of up to 1.8%. Finally, the TiO2/POE nanolubricant improved the rheological properties of the POE lubricant for use in automotive air-conditioning systems.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Compressor lubricant; Dynamic viscosity; Nanolubricant; Refrigeration; Rheology properties
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Institute of Postgraduate Studies
College of Engineering
Faculty of Mechanical and Automotive Engineering Technology
Depositing User: Mr Muhamad Firdaus Janih@Jaini
Date Deposited: 18 Aug 2022 03:02
Last Modified: 18 Aug 2022 03:02
URI: http://umpir.ump.edu.my/id/eprint/33358
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