Experimental Investigation on Newtonian Behaviour and Viscosity of TiO2/PVE Nanolubricants for Application in Refrigeration System

Authors

  • Mohd Farid Ismail Faculty of Mechanical and Manufacturing Engineering Technology, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya 75150, Durian Tunggal, Melaka, Malaysia
  • Wan Hamzah Azmi Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia
  • Rizalman Mamat Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia
  • Abdul Hamid. Hamisa School of Engineering, Faculty of Science, Engineering and Agrotechnology, University College of Yayasan Pahang (UCYP), Taman Gelora, Jln Dato’ Abdullah, 25050 Kuantan, Pahang, Malaysia

DOI:

https://doi.org/10.37934/arfmts.92.1.917

Keywords:

Compressor lubricant, refrigeration, rheology property, poly vinyl ether, Newtonian fluid

Abstract

The flow characteristics are highly dependent to viscosity of the fluid. For nanolubricant with different concentration, viscosity change is one of important parameter to be measured to evaluate its functional ability as lubricant. This paper studies about the effect of TiO2 nanoparticle in poly vinyl ether (PVE) at different concentration and temperature. Nanolubricant with volume concentration between 0.01% to 0.1% prepared using two-step method and tested at 40°C, 60°C, and 80°C temperature by using digital rheometer. Beforehand, the colloidal suspension fluid was observed by visual and zeta potential measurement to ensure its stability. The fluid Newtonian behaviour was identified for shear rate up to 1000 rpm. The results shown that dynamic viscosity of 0.01% TiO2/PVE nanolubricant had decreased up to 11% for all measured temperature. For other samples, viscosity increment does not reach more than 1.5% compared to pure PVE oil. It also observed that viscosity increment by the increasing of volume concentration, but it decreases by the increment of temperature. The finding in this study confirms that viscosity of TiO2/PVE nanolubricant effected by both temperature and volume concentration to opposite behaviour.

Author Biographies

Mohd Farid Ismail, Faculty of Mechanical and Manufacturing Engineering Technology, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya 75150, Durian Tunggal, Melaka, Malaysia

mfarid@utem.edu.my

Wan Hamzah Azmi, Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia

wanazmi2010@gmail.com

Rizalman Mamat, Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia

rizalman@ump.edu.my

Abdul Hamid. Hamisa, School of Engineering, Faculty of Science, Engineering and Agrotechnology, University College of Yayasan Pahang (UCYP), Taman Gelora, Jln Dato’ Abdullah, 25050 Kuantan, Pahang, Malaysia

hamisa@ucyp.edu.my

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Published

2022-01-29

How to Cite

Mohd Farid Ismail, Wan Hamzah Azmi, Rizalman Mamat, & Abdul Hamid. Hamisa. (2022). Experimental Investigation on Newtonian Behaviour and Viscosity of TiO2/PVE Nanolubricants for Application in Refrigeration System. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 92(1), 9–17. https://doi.org/10.37934/arfmts.92.1.917

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