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The Tribology Evaluation on a Four-Ball Tribometer Lubricated by Al2O3/PAG Nanolubricants

Nanolubricants can improve the tribological properties for application in automotive systems. By reducing the friction rate of the internal components with nanolubricants, the service life of a compressor used in automotive air conditioning (AAC) can be extended. The investigation aims to determine...

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Main Authors: Safril, Saka, Wan Hamzah, Azmi, M. Z., Sharif, N. N. M., Zawawi
Format: Article
Published: Universiti Malaysia Pahang 2024
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
Online Access:http://umpir.ump.edu.my/id/eprint/37141/
https://doi.org/10.15282/ijame.21.1.2024.09.0855
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spelling my.ump.umpir.371412024-05-02T08:00:39Z http://umpir.ump.edu.my/id/eprint/37141/ The Tribology Evaluation on a Four-Ball Tribometer Lubricated by Al2O3/PAG Nanolubricants Safril, Saka Wan Hamzah, Azmi M. Z., Sharif N. N. M., Zawawi T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Nanolubricants can improve the tribological properties for application in automotive systems. By reducing the friction rate of the internal components with nanolubricants, the service life of a compressor used in automotive air conditioning (AAC) can be extended. The investigation aims to determine the optimal volume concentration of nanolubricants for achieving the highest performance in tribological properties. Al2O3 nanoparticles dispersed in a polyalkylene glycol (PAG ND12) base at volume concentrations of 0.01%, 0.03%, and 0.05% were investigated to improve the lubrication system in the AAC compressor. The stability investigations were carried out by comparing absorbance conditions using a UV-Vis Spectrophotometer at each volume concentration for 210 days. Koehler's four-ball tribometer was used to measure coefficient of friction (COF) and friction torque at a load of 40.0 kg and a speed of 1200 rpm. The stability study of nanolubricant yielded average absorbance values of 0.752, 0.755, and 0.684, respectively. The average COF values of the nanolubricants of 0.01%, 0.03%, and 0.05% were 0.104, 0.078, and 0.117, while the pure lubricant was 0.095. Further investigation on friction torque resulted in a decrease in the pure lubricant of 0.064%, and for nanolubricant Al2O3/PAG ND12, a decrease of 0.087%, 0.057%, and 0.092%, respectively. The results indicated that a concentration of 0.03% produced the greatest reduction in COF and torque, namely 0.0078% and 0.0578%, correspondingly. Therefore, it is recommended to use Al2O3/PAG ND12 nanolubricant at a volume concentration of 0.03% because it is the most optimal in terms of stability and has the highest COF and frictional torque reduction. Universiti Malaysia Pahang 2024 Article PeerReviewed Safril, Saka and Wan Hamzah, Azmi and M. Z., Sharif and N. N. M., Zawawi (2024) The Tribology Evaluation on a Four-Ball Tribometer Lubricated by Al2O3/PAG Nanolubricants. International Journal of Automotive and Mechanical Engineering (IJAME), 21 (1). pp. 11055-11063. ISSN 2229-8649 (Print); 2180-1606 (Online). (Published) https://doi.org/10.15282/ijame.21.1.2024.09.0855 10.15282/ijame.21.1.2024.09.0855
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
Safril, Saka
Wan Hamzah, Azmi
M. Z., Sharif
N. N. M., Zawawi
The Tribology Evaluation on a Four-Ball Tribometer Lubricated by Al2O3/PAG Nanolubricants
description Nanolubricants can improve the tribological properties for application in automotive systems. By reducing the friction rate of the internal components with nanolubricants, the service life of a compressor used in automotive air conditioning (AAC) can be extended. The investigation aims to determine the optimal volume concentration of nanolubricants for achieving the highest performance in tribological properties. Al2O3 nanoparticles dispersed in a polyalkylene glycol (PAG ND12) base at volume concentrations of 0.01%, 0.03%, and 0.05% were investigated to improve the lubrication system in the AAC compressor. The stability investigations were carried out by comparing absorbance conditions using a UV-Vis Spectrophotometer at each volume concentration for 210 days. Koehler's four-ball tribometer was used to measure coefficient of friction (COF) and friction torque at a load of 40.0 kg and a speed of 1200 rpm. The stability study of nanolubricant yielded average absorbance values of 0.752, 0.755, and 0.684, respectively. The average COF values of the nanolubricants of 0.01%, 0.03%, and 0.05% were 0.104, 0.078, and 0.117, while the pure lubricant was 0.095. Further investigation on friction torque resulted in a decrease in the pure lubricant of 0.064%, and for nanolubricant Al2O3/PAG ND12, a decrease of 0.087%, 0.057%, and 0.092%, respectively. The results indicated that a concentration of 0.03% produced the greatest reduction in COF and torque, namely 0.0078% and 0.0578%, correspondingly. Therefore, it is recommended to use Al2O3/PAG ND12 nanolubricant at a volume concentration of 0.03% because it is the most optimal in terms of stability and has the highest COF and frictional torque reduction.
format Article
author Safril, Saka
Wan Hamzah, Azmi
M. Z., Sharif
N. N. M., Zawawi
author_facet Safril, Saka
Wan Hamzah, Azmi
M. Z., Sharif
N. N. M., Zawawi
author_sort Safril, Saka
title The Tribology Evaluation on a Four-Ball Tribometer Lubricated by Al2O3/PAG Nanolubricants
title_short The Tribology Evaluation on a Four-Ball Tribometer Lubricated by Al2O3/PAG Nanolubricants
title_full The Tribology Evaluation on a Four-Ball Tribometer Lubricated by Al2O3/PAG Nanolubricants
title_fullStr The Tribology Evaluation on a Four-Ball Tribometer Lubricated by Al2O3/PAG Nanolubricants
title_full_unstemmed The Tribology Evaluation on a Four-Ball Tribometer Lubricated by Al2O3/PAG Nanolubricants
title_sort tribology evaluation on a four-ball tribometer lubricated by al2o3/pag nanolubricants
publisher Universiti Malaysia Pahang
publishDate 2024
url http://umpir.ump.edu.my/id/eprint/37141/
https://doi.org/10.15282/ijame.21.1.2024.09.0855
_version_ 1822924298857218048
score 13.232414

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