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Thermo-Physical Properties of Al2O3-SiO2/PAG Composite Nanolubricant for Refrigeration System

Thermal conductivity and viscosity of the Al2O3-SiO2/PAG composite nanolubricants for 0.02 to 0.1% volume concentrations at a temperature range of 303 to 353 K were investigated. Al2O3 and SiO2 nanoparticles were dispersed in the Polyalkylene Glycol (PAG 46) lubricant using the two-step method of pr...

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Main Authors: Nurul Nadia, Mohd Zawawi, Azmi, W. H., Redhwan, A. A. M., M. Z., Sharif, Sharma, K. V.
Format: Article
Language:English
Published: Elsevier 2017
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/19194/7/fkm-2017-azmi-%20Thermo-Physical%20Properties%20of%20Al2O3-SiO2PAG1.pdf
http://umpir.ump.edu.my/id/eprint/19194/
https://doi.org/10.1016/j.ijrefrig.2017.04.024
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spelling my.ump.umpir.191942019-10-17T08:12:53Z http://umpir.ump.edu.my/id/eprint/19194/ Thermo-Physical Properties of Al2O3-SiO2/PAG Composite Nanolubricant for Refrigeration System Nurul Nadia, Mohd Zawawi Azmi, W. H. Redhwan, A. A. M. M. Z., Sharif Sharma, K. V. TJ Mechanical engineering and machinery Thermal conductivity and viscosity of the Al2O3-SiO2/PAG composite nanolubricants for 0.02 to 0.1% volume concentrations at a temperature range of 303 to 353 K were investigated. Al2O3 and SiO2 nanoparticles were dispersed in the Polyalkylene Glycol (PAG 46) lubricant using the two-step method of preparation. Thermal conductivity and viscosity were measured using KD2 Pro Thermal Properties Analyzer and LVDV-III Rheometer, respectively. The result shows that the thermal conductivity and viscosity of composite nanolubricants increase with volume concentration and decreases with temperature. Composite nanolubricants behave as Newtonian in the range of the temperatures and volume concentrations studied. The highest thermal conductivity increment is 2.41% at 0.1% concentration and temperature of 303 K. A maximum value of 9.71% in viscosity at 0.1% concentration is observed at temperature of 333 K. A new correlation model to predict the properties of composite nanolubricants has been proposed for applications in refrigeration systems. Elsevier 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/19194/7/fkm-2017-azmi-%20Thermo-Physical%20Properties%20of%20Al2O3-SiO2PAG1.pdf Nurul Nadia, Mohd Zawawi and Azmi, W. H. and Redhwan, A. A. M. and M. Z., Sharif and Sharma, K. V. (2017) Thermo-Physical Properties of Al2O3-SiO2/PAG Composite Nanolubricant for Refrigeration System. International Journal of Refrigeration, 80. pp. 1-10. ISSN 0140-7007 https://doi.org/10.1016/j.ijrefrig.2017.04.024 doi: https://doi.org/10.1016/j.ijrefrig.2017.04.024
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 TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Nurul Nadia, Mohd Zawawi
Azmi, W. H.
Redhwan, A. A. M.
M. Z., Sharif
Sharma, K. V.
Thermo-Physical Properties of Al2O3-SiO2/PAG Composite Nanolubricant for Refrigeration System
description Thermal conductivity and viscosity of the Al2O3-SiO2/PAG composite nanolubricants for 0.02 to 0.1% volume concentrations at a temperature range of 303 to 353 K were investigated. Al2O3 and SiO2 nanoparticles were dispersed in the Polyalkylene Glycol (PAG 46) lubricant using the two-step method of preparation. Thermal conductivity and viscosity were measured using KD2 Pro Thermal Properties Analyzer and LVDV-III Rheometer, respectively. The result shows that the thermal conductivity and viscosity of composite nanolubricants increase with volume concentration and decreases with temperature. Composite nanolubricants behave as Newtonian in the range of the temperatures and volume concentrations studied. The highest thermal conductivity increment is 2.41% at 0.1% concentration and temperature of 303 K. A maximum value of 9.71% in viscosity at 0.1% concentration is observed at temperature of 333 K. A new correlation model to predict the properties of composite nanolubricants has been proposed for applications in refrigeration systems.
format Article
author Nurul Nadia, Mohd Zawawi
Azmi, W. H.
Redhwan, A. A. M.
M. Z., Sharif
Sharma, K. V.
author_facet Nurul Nadia, Mohd Zawawi
Azmi, W. H.
Redhwan, A. A. M.
M. Z., Sharif
Sharma, K. V.
author_sort Nurul Nadia, Mohd Zawawi
title Thermo-Physical Properties of Al2O3-SiO2/PAG Composite Nanolubricant for Refrigeration System
title_short Thermo-Physical Properties of Al2O3-SiO2/PAG Composite Nanolubricant for Refrigeration System
title_full Thermo-Physical Properties of Al2O3-SiO2/PAG Composite Nanolubricant for Refrigeration System
title_fullStr Thermo-Physical Properties of Al2O3-SiO2/PAG Composite Nanolubricant for Refrigeration System
title_full_unstemmed Thermo-Physical Properties of Al2O3-SiO2/PAG Composite Nanolubricant for Refrigeration System
title_sort thermo-physical properties of al2o3-sio2/pag composite nanolubricant for refrigeration system
publisher Elsevier
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/19194/7/fkm-2017-azmi-%20Thermo-Physical%20Properties%20of%20Al2O3-SiO2PAG1.pdf
http://umpir.ump.edu.my/id/eprint/19194/
https://doi.org/10.1016/j.ijrefrig.2017.04.024
_version_ 1648741118111645696
score 13.211869

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