Experimental Investigation of Thermal Conductivity and Electrical Conductivity of BioGlycol - Water Mixture Based Al2O3 Nanofluid
Nanofluid as a new brand of cooling fluid consisting of nanometer-sized particles dispersed in base fluid. In this study, the thermal conductivity and electrical conductivity of BioGlycol (BG)–water (W) mixed nanofluids containing Al2O3 nanoparticles were studied. Nanofluids with 0.5 to 2.0% concent...
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| Language: | en |
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Elsevier Ltd
2016
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| Online Access: | http://umpir.ump.edu.my/id/eprint/12873/1/Experimental%20Investigation%20of%20Thermal%20Conductivity%20and%20Electrical%20Conductivity%20of%20BioGlycol%20-%20Water%20Mixture%20Based%20Al2O3%20Nanofluid.pdf http://umpir.ump.edu.my/id/eprint/12873/ http://dx.doi.org/10.1016/j.applthermaleng.2016.03.074 |
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| author | M. Kh., Abdolbaqi Azmi, W. H. R., Mamat K. V., Sharma G., Najafi |
| author_facet | M. Kh., Abdolbaqi Azmi, W. H. R., Mamat K. V., Sharma G., Najafi |
| author_sort | M. Kh., Abdolbaqi |
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| collection | Institutional Repository |
| content_provider | Universiti Malaysia Pahang Al-Sultan Abdullah |
| content_source | UMPSA Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Nanofluid as a new brand of cooling fluid consisting of nanometer-sized particles dispersed in base fluid. In this study, the thermal conductivity and electrical conductivity of BioGlycol (BG)–water (W) mixed nanofluids containing Al2O3 nanoparticles were studied. Nanofluids with 0.5 to 2.0% concentrations were prepared by the two-step method. The nanofluids demonstrated excellent stability over the temperature range of 30 to 80 °C after using the long term sonication process. Comparisons of the experimental data with many existing models illustrated that they do not display good agreement. Therefore, a new nonlinear model has been developed with 5% maximum deviation for the thermal conductivity of nanofluids as a function of temperature and volume concentration. The results of BG:W mixtures have displayed improvement in thermal performance of 7.5% in comparison with Propylene glycol (PG):W in similar circumstances. The thermal conductivity of nanofluid increased as a function of volume concentration and temperature. The maximum thermal conductivity enhancement using 40:60% (BG:W) mixture ratio was twice as high as 60:40% in the same conditions. Electrical conductivity was observed to decrease as the volume concentration increased. Thermo-electrical conductivity ratio (TEC) has been evaluated theoretically based on thermal and electrical conductivity results. |
| format | Article |
| id | my.ump.umpir.12873 |
| institution | Universiti Malaysia Pahang |
| language | en |
| publishDate | 2016 |
| publisher | Elsevier Ltd |
| record_format | eprints |
| spelling | my.ump.umpir.128732018-09-18T00:42:07Z http://umpir.ump.edu.my/id/eprint/12873/ Experimental Investigation of Thermal Conductivity and Electrical Conductivity of BioGlycol - Water Mixture Based Al2O3 Nanofluid M. Kh., Abdolbaqi Azmi, W. H. R., Mamat K. V., Sharma G., Najafi TJ Mechanical engineering and machinery Nanofluid as a new brand of cooling fluid consisting of nanometer-sized particles dispersed in base fluid. In this study, the thermal conductivity and electrical conductivity of BioGlycol (BG)–water (W) mixed nanofluids containing Al2O3 nanoparticles were studied. Nanofluids with 0.5 to 2.0% concentrations were prepared by the two-step method. The nanofluids demonstrated excellent stability over the temperature range of 30 to 80 °C after using the long term sonication process. Comparisons of the experimental data with many existing models illustrated that they do not display good agreement. Therefore, a new nonlinear model has been developed with 5% maximum deviation for the thermal conductivity of nanofluids as a function of temperature and volume concentration. The results of BG:W mixtures have displayed improvement in thermal performance of 7.5% in comparison with Propylene glycol (PG):W in similar circumstances. The thermal conductivity of nanofluid increased as a function of volume concentration and temperature. The maximum thermal conductivity enhancement using 40:60% (BG:W) mixture ratio was twice as high as 60:40% in the same conditions. Electrical conductivity was observed to decrease as the volume concentration increased. Thermo-electrical conductivity ratio (TEC) has been evaluated theoretically based on thermal and electrical conductivity results. Elsevier Ltd 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12873/1/Experimental%20Investigation%20of%20Thermal%20Conductivity%20and%20Electrical%20Conductivity%20of%20BioGlycol%20-%20Water%20Mixture%20Based%20Al2O3%20Nanofluid.pdf M. Kh., Abdolbaqi and Azmi, W. H. and R., Mamat and K. V., Sharma and G., Najafi (2016) Experimental Investigation of Thermal Conductivity and Electrical Conductivity of BioGlycol - Water Mixture Based Al2O3 Nanofluid. Applied Thermal Engineering, 102 (June). pp. 932-941. ISSN 1359-4311. (Published) http://dx.doi.org/10.1016/j.applthermaleng.2016.03.074 doi:10.1016/j.applthermaleng.2016.03.074 |
| spellingShingle | TJ Mechanical engineering and machinery M. Kh., Abdolbaqi Azmi, W. H. R., Mamat K. V., Sharma G., Najafi Experimental Investigation of Thermal Conductivity and Electrical Conductivity of BioGlycol - Water Mixture Based Al2O3 Nanofluid |
| title | Experimental Investigation of Thermal Conductivity and Electrical Conductivity of BioGlycol - Water Mixture Based Al2O3 Nanofluid |
| title_full | Experimental Investigation of Thermal Conductivity and Electrical Conductivity of BioGlycol - Water Mixture Based Al2O3 Nanofluid |
| title_fullStr | Experimental Investigation of Thermal Conductivity and Electrical Conductivity of BioGlycol - Water Mixture Based Al2O3 Nanofluid |
| title_full_unstemmed | Experimental Investigation of Thermal Conductivity and Electrical Conductivity of BioGlycol - Water Mixture Based Al2O3 Nanofluid |
| title_short | Experimental Investigation of Thermal Conductivity and Electrical Conductivity of BioGlycol - Water Mixture Based Al2O3 Nanofluid |
| title_sort | experimental investigation of thermal conductivity and electrical conductivity of bioglycol - water mixture based al2o3 nanofluid |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/12873/1/Experimental%20Investigation%20of%20Thermal%20Conductivity%20and%20Electrical%20Conductivity%20of%20BioGlycol%20-%20Water%20Mixture%20Based%20Al2O3%20Nanofluid.pdf http://umpir.ump.edu.my/id/eprint/12873/ http://dx.doi.org/10.1016/j.applthermaleng.2016.03.074 |
| url_provider | http://umpir.ump.edu.my/ |