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Thermal and tribological properties enhancement of PVE lubricant modiﬁed with SiO2 and tio2 nanoparticles additive

The addition of nanoparticles may have a positive or negative impact on the thermal and tribological properties of base lubricant. The objective of this paper is to investigate the effect of nanoparticle dispersion in lubricant base in relation to its application in refrigeration system compressors....

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Main Authors:	Mohd Farid, Ismail, Wan Hamzah, Azmi, Rizalman, Mamat, Hafiz Muhammad, Ali
Format:	Article
Language:	English
Published:	MDPI 2023
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/38192/1/Thermal%20and%20tribological%20properties%20enhancement%20of%20pve%20lubricant%20modified%20with%20SiO2%20and%20TiO2.pdf http://umpir.ump.edu.my/id/eprint/38192/ https://doi.org/10.3390/nano13010042 https://doi.org/10.3390/nano13010042
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spelling	my.ump.umpir.381922023-08-23T01:28:58Z http://umpir.ump.edu.my/id/eprint/38192/ Thermal and tribological properties enhancement of PVE lubricant modiﬁed with SiO2 and tio2 nanoparticles additive Mohd Farid, Ismail Wan Hamzah, Azmi Rizalman, Mamat Hafiz Muhammad, Ali T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics The addition of nanoparticles may have a positive or negative impact on the thermal and tribological properties of base lubricant. The objective of this paper is to investigate the effect of nanoparticle dispersion in lubricant base in relation to its application in refrigeration system compressors. An investigation of tribological and thermal properties of nanolubricants for rolling piston rotary systems was carried out through four-ball tribology tests and thermal conductivity measurements. Nanolubricants dispersed with SiO2 and TiO2 nanoparticles were tested at various concentrations and temperatures. The changes in thermal conductivity and coefficient of friction (COF) were analyzed while wear weight loss was also calculated from wear scar size. A regression model of thermal conductivity enhancement was proposed for both types of nanoparticles. Zeta potential results show that nanolubricants have excellent stability. The thermal conductivity increases by the increment of nanoparticle concentration but decreases by temperature. The R-square for the regression model is more than 0.9952 with an average deviation not more than 0.29%. The COF for SiO2/PVE nanolubricant at 0.003 vol.% reduced 15% from the baseline. The COF for nanolubricants exceeds the result for base lubricants when the concentration is more than the threshold value. The optimum concentration of SiO2 and TiO2 nanoparticles improved the thermal and tribological properties of PVE lubricant and may offer an advantage when applied to refrigeration systems. MDPI 2023-01 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/38192/1/Thermal%20and%20tribological%20properties%20enhancement%20of%20pve%20lubricant%20modified%20with%20SiO2%20and%20TiO2.pdf Mohd Farid, Ismail and Wan Hamzah, Azmi and Rizalman, Mamat and Hafiz Muhammad, Ali (2023) Thermal and tribological properties enhancement of PVE lubricant modiﬁed with SiO2 and tio2 nanoparticles additive. Nanomaterials, 13 (42). pp. 1-18. ISSN 2079-4991. (Published) https://doi.org/10.3390/nano13010042 https://doi.org/10.3390/nano13010042
institution	Universiti Malaysia Pahang
building	UMP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Pahang
content_source	UMP Institutional Repository
url_provider	http://umpir.ump.edu.my/
language	English
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 Mohd Farid, Ismail Wan Hamzah, Azmi Rizalman, Mamat Hafiz Muhammad, Ali Thermal and tribological properties enhancement of PVE lubricant modiﬁed with SiO2 and tio2 nanoparticles additive
description	The addition of nanoparticles may have a positive or negative impact on the thermal and tribological properties of base lubricant. The objective of this paper is to investigate the effect of nanoparticle dispersion in lubricant base in relation to its application in refrigeration system compressors. An investigation of tribological and thermal properties of nanolubricants for rolling piston rotary systems was carried out through four-ball tribology tests and thermal conductivity measurements. Nanolubricants dispersed with SiO2 and TiO2 nanoparticles were tested at various concentrations and temperatures. The changes in thermal conductivity and coefficient of friction (COF) were analyzed while wear weight loss was also calculated from wear scar size. A regression model of thermal conductivity enhancement was proposed for both types of nanoparticles. Zeta potential results show that nanolubricants have excellent stability. The thermal conductivity increases by the increment of nanoparticle concentration but decreases by temperature. The R-square for the regression model is more than 0.9952 with an average deviation not more than 0.29%. The COF for SiO2/PVE nanolubricant at 0.003 vol.% reduced 15% from the baseline. The COF for nanolubricants exceeds the result for base lubricants when the concentration is more than the threshold value. The optimum concentration of SiO2 and TiO2 nanoparticles improved the thermal and tribological properties of PVE lubricant and may offer an advantage when applied to refrigeration systems.
format	Article
author	Mohd Farid, Ismail Wan Hamzah, Azmi Rizalman, Mamat Hafiz Muhammad, Ali
author_facet	Mohd Farid, Ismail Wan Hamzah, Azmi Rizalman, Mamat Hafiz Muhammad, Ali
author_sort	Mohd Farid, Ismail
title	Thermal and tribological properties enhancement of PVE lubricant modiﬁed with SiO2 and tio2 nanoparticles additive
title_short	Thermal and tribological properties enhancement of PVE lubricant modiﬁed with SiO2 and tio2 nanoparticles additive
title_full	Thermal and tribological properties enhancement of PVE lubricant modiﬁed with SiO2 and tio2 nanoparticles additive
title_fullStr	Thermal and tribological properties enhancement of PVE lubricant modiﬁed with SiO2 and tio2 nanoparticles additive
title_full_unstemmed	Thermal and tribological properties enhancement of PVE lubricant modiﬁed with SiO2 and tio2 nanoparticles additive
title_sort	thermal and tribological properties enhancement of pve lubricant modiﬁed with sio2 and tio2 nanoparticles additive
publisher	MDPI
publishDate	2023
url	http://umpir.ump.edu.my/id/eprint/38192/1/Thermal%20and%20tribological%20properties%20enhancement%20of%20pve%20lubricant%20modified%20with%20SiO2%20and%20TiO2.pdf http://umpir.ump.edu.my/id/eprint/38192/ https://doi.org/10.3390/nano13010042 https://doi.org/10.3390/nano13010042
_version_	1775622246782468096
score	13.211869

Thermal and tribological properties enhancement of PVE lubricant modiﬁed with SiO2 and tio2 nanoparticles additive

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