Investigation of Thermal Conductivity and Viscosity of Al2O3/PAG Nanolubricant for Application in Automotive Air Conditioning System
In this paper, thermal conductivity and viscosity of the Al2O3/polyalkylene glycol (PAG) 46 nanolubricants for 0.05 to 1.0% volume concentrations at temperatures of 303.15 to 353.15 K have been investigated. Al2O3 nanoparticles were dispersed in the PAG lubricant by a two step preparation. The measu...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/14374/ http://umpir.ump.edu.my/id/eprint/14374/1/fkm-2016-whazmi-Investigation%20of%20Thermal%20Conductivity%20and%20Viscosity.pdf |
| _version_ | 1848819708800794624 |
|---|---|
| author | M. Z., Sharif Azmi, W. H. A. A. M., Redhwan R., Mamat |
| author_facet | M. Z., Sharif Azmi, W. H. A. A. M., Redhwan R., Mamat |
| author_sort | M. Z., Sharif |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | In this paper, thermal conductivity and viscosity of the Al2O3/polyalkylene glycol (PAG) 46 nanolubricants for 0.05 to 1.0% volume concentrations at temperatures of 303.15 to 353.15 K have been investigated. Al2O3 nanoparticles were dispersed in the PAG lubricant by a two step preparation. The measurement of thermal conductivity and viscosity was performed using KD2 Pro Thermal Properties Analyzer and LVDV-III Rheometer, respectively. The results showed that the thermal conductivity of the nanolubricants increased by concentration, but decreased by temperature. Besides, the viscosity of the nanolubricants sharply increased for concentrations higher than 0.3%. However, this parameter diminished by temperature. The highest thermal conductivity and viscosity ratio were observed to be 1.04 and 7.58 times greater than the PAG lubricant for 1.0% and 0.4% concentrations, respectively. As a conclusion, it was recommended to use the Al2O3/PAG nanolubricants with concentration of less than 0.3% for application in automotive air conditioning system. |
| first_indexed | 2025-11-15T01:57:51Z |
| format | Article |
| id | ump-14374 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:57:51Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-143742019-10-30T04:22:08Z http://umpir.ump.edu.my/id/eprint/14374/ Investigation of Thermal Conductivity and Viscosity of Al2O3/PAG Nanolubricant for Application in Automotive Air Conditioning System M. Z., Sharif Azmi, W. H. A. A. M., Redhwan R., Mamat TJ Mechanical engineering and machinery In this paper, thermal conductivity and viscosity of the Al2O3/polyalkylene glycol (PAG) 46 nanolubricants for 0.05 to 1.0% volume concentrations at temperatures of 303.15 to 353.15 K have been investigated. Al2O3 nanoparticles were dispersed in the PAG lubricant by a two step preparation. The measurement of thermal conductivity and viscosity was performed using KD2 Pro Thermal Properties Analyzer and LVDV-III Rheometer, respectively. The results showed that the thermal conductivity of the nanolubricants increased by concentration, but decreased by temperature. Besides, the viscosity of the nanolubricants sharply increased for concentrations higher than 0.3%. However, this parameter diminished by temperature. The highest thermal conductivity and viscosity ratio were observed to be 1.04 and 7.58 times greater than the PAG lubricant for 1.0% and 0.4% concentrations, respectively. As a conclusion, it was recommended to use the Al2O3/PAG nanolubricants with concentration of less than 0.3% for application in automotive air conditioning system. Elsevier 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/14374/1/fkm-2016-whazmi-Investigation%20of%20Thermal%20Conductivity%20and%20Viscosity.pdf M. Z., Sharif and Azmi, W. H. and A. A. M., Redhwan and R., Mamat (2016) Investigation of Thermal Conductivity and Viscosity of Al2O3/PAG Nanolubricant for Application in Automotive Air Conditioning System. International Journal of Refrigeration, 70. pp. 93-102. ISSN 0140-7007. (Published) http://dx.doi.org/10.1016/j.ijrefrig.2016.06.025 DOI: 10.1016/j.ijrefrig.2016.06.025 |
| spellingShingle | TJ Mechanical engineering and machinery M. Z., Sharif Azmi, W. H. A. A. M., Redhwan R., Mamat Investigation of Thermal Conductivity and Viscosity of Al2O3/PAG Nanolubricant for Application in Automotive Air Conditioning System |
| title | Investigation of Thermal Conductivity and Viscosity of Al2O3/PAG Nanolubricant for Application in Automotive Air Conditioning System |
| title_full | Investigation of Thermal Conductivity and Viscosity of Al2O3/PAG Nanolubricant for Application in Automotive Air Conditioning System |
| title_fullStr | Investigation of Thermal Conductivity and Viscosity of Al2O3/PAG Nanolubricant for Application in Automotive Air Conditioning System |
| title_full_unstemmed | Investigation of Thermal Conductivity and Viscosity of Al2O3/PAG Nanolubricant for Application in Automotive Air Conditioning System |
| title_short | Investigation of Thermal Conductivity and Viscosity of Al2O3/PAG Nanolubricant for Application in Automotive Air Conditioning System |
| title_sort | investigation of thermal conductivity and viscosity of al2o3/pag nanolubricant for application in automotive air conditioning system |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/14374/ http://umpir.ump.edu.my/id/eprint/14374/ http://umpir.ump.edu.my/id/eprint/14374/ http://umpir.ump.edu.my/id/eprint/14374/1/fkm-2016-whazmi-Investigation%20of%20Thermal%20Conductivity%20and%20Viscosity.pdf |