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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Rheological properties of TiO2_POE nanolubricant for automotive air conditioning system.pdf Available under License Creative Commons Attribution Non-commercial. Download (611kB) | Preview |
Abstract
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 |
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| 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 |
| Download Statistic: | View Download Statistics |
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