An experimental determination of thermal conductivity and electrical conductivity of bio glycol based Al2O3 nanofluids and development of new correlation
Nanofluid, as a kind of new engineered material consisting of nanometer-sized additives and base fluids, has attracted great attention from investigators for its superior thermal properties and many potential applications. In this paper, the thermal conductivity, dispersion stability and electrical...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Published: |
Elsevier Ltd
2016
|
| Subjects: |
| _version_ | 1796861968270753792 |
|---|---|
| author | Mohammed Khdher, Abdolbaqi Che Sidik, Nor Azwadi Wan Hamzah, Wan Azmi Mamat, Rizalman |
| author_facet | Mohammed Khdher, Abdolbaqi Che Sidik, Nor Azwadi Wan Hamzah, Wan Azmi Mamat, Rizalman |
| author_sort | Mohammed Khdher, Abdolbaqi |
| collection | ePrints |
| description | Nanofluid, as a kind of new engineered material consisting of nanometer-sized additives and base fluids, has attracted great attention from investigators for its superior thermal properties and many potential applications. In this paper, the thermal conductivity, dispersion stability and electrical conductivity of 100% bioglycol (BG) based nanofluids containing Al2O3 nanoparticles were studied in a temperature range of 30 to 80 °C. Nanofluids with 0.1, 0.3, 0.5, 0.7, and 1% volume concentrations were prepared using the two-step method without using surfactant. The nanofluids demonstrated excellent stability over this temperature range after using long-term sonication. A new correlation has been developed for the thermal conductivity of nanofluids as a function of temperature and particle volume concentration. This study also revealed that the thermal conductivity enhancement of bio glycol (BG), ethylene glycol (EG) and propylene glycol (PG) of 1.0% volume concentration at 30 °C was 17%, 9% and 3.6% respectively. However, the increment in temperature reacts inversely to the thermo-electrical conductivity (TEC) ratio. The maximum value of TEC is 9.5 at 0.5% volume concentrations and temperature of 30 °C. |
| first_indexed | 2024-03-05T20:04:27Z |
| format | Article |
| id | utm.eprints-72669 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:04:27Z |
| publishDate | 2016 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | utm.eprints-726692017-11-23T01:37:09Z http://eprints.utm.my/72669/ An experimental determination of thermal conductivity and electrical conductivity of bio glycol based Al2O3 nanofluids and development of new correlation Mohammed Khdher, Abdolbaqi Che Sidik, Nor Azwadi Wan Hamzah, Wan Azmi Mamat, Rizalman TJ Mechanical engineering and machinery Nanofluid, as a kind of new engineered material consisting of nanometer-sized additives and base fluids, has attracted great attention from investigators for its superior thermal properties and many potential applications. In this paper, the thermal conductivity, dispersion stability and electrical conductivity of 100% bioglycol (BG) based nanofluids containing Al2O3 nanoparticles were studied in a temperature range of 30 to 80 °C. Nanofluids with 0.1, 0.3, 0.5, 0.7, and 1% volume concentrations were prepared using the two-step method without using surfactant. The nanofluids demonstrated excellent stability over this temperature range after using long-term sonication. A new correlation has been developed for the thermal conductivity of nanofluids as a function of temperature and particle volume concentration. This study also revealed that the thermal conductivity enhancement of bio glycol (BG), ethylene glycol (EG) and propylene glycol (PG) of 1.0% volume concentration at 30 °C was 17%, 9% and 3.6% respectively. However, the increment in temperature reacts inversely to the thermo-electrical conductivity (TEC) ratio. The maximum value of TEC is 9.5 at 0.5% volume concentrations and temperature of 30 °C. Elsevier Ltd 2016 Article PeerReviewed Mohammed Khdher, Abdolbaqi and Che Sidik, Nor Azwadi and Wan Hamzah, Wan Azmi and Mamat, Rizalman (2016) An experimental determination of thermal conductivity and electrical conductivity of bio glycol based Al2O3 nanofluids and development of new correlation. International Communications in Heat and Mass Transfer, 73 . pp. 75-83. ISSN 0735-1933 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960882719&doi=10.1016%2fj.icheatmasstransfer.2016.02.006&partnerID=40&md5=0d10e39c8f8a7952b50cb82b39d80571 |
| spellingShingle | TJ Mechanical engineering and machinery Mohammed Khdher, Abdolbaqi Che Sidik, Nor Azwadi Wan Hamzah, Wan Azmi Mamat, Rizalman An experimental determination of thermal conductivity and electrical conductivity of bio glycol based Al2O3 nanofluids and development of new correlation |
| title | An experimental determination of thermal conductivity and electrical conductivity of bio glycol based Al2O3 nanofluids and development of new correlation |
| title_full | An experimental determination of thermal conductivity and electrical conductivity of bio glycol based Al2O3 nanofluids and development of new correlation |
| title_fullStr | An experimental determination of thermal conductivity and electrical conductivity of bio glycol based Al2O3 nanofluids and development of new correlation |
| title_full_unstemmed | An experimental determination of thermal conductivity and electrical conductivity of bio glycol based Al2O3 nanofluids and development of new correlation |
| title_short | An experimental determination of thermal conductivity and electrical conductivity of bio glycol based Al2O3 nanofluids and development of new correlation |
| title_sort | experimental determination of thermal conductivity and electrical conductivity of bio glycol based al2o3 nanofluids and development of new correlation |
| topic | TJ Mechanical engineering and machinery |
| work_keys_str_mv | AT mohammedkhdherabdolbaqi anexperimentaldeterminationofthermalconductivityandelectricalconductivityofbioglycolbasedal2o3nanofluidsanddevelopmentofnewcorrelation AT chesidiknorazwadi anexperimentaldeterminationofthermalconductivityandelectricalconductivityofbioglycolbasedal2o3nanofluidsanddevelopmentofnewcorrelation AT wanhamzahwanazmi anexperimentaldeterminationofthermalconductivityandelectricalconductivityofbioglycolbasedal2o3nanofluidsanddevelopmentofnewcorrelation AT mamatrizalman anexperimentaldeterminationofthermalconductivityandelectricalconductivityofbioglycolbasedal2o3nanofluidsanddevelopmentofnewcorrelation AT mohammedkhdherabdolbaqi experimentaldeterminationofthermalconductivityandelectricalconductivityofbioglycolbasedal2o3nanofluidsanddevelopmentofnewcorrelation AT chesidiknorazwadi experimentaldeterminationofthermalconductivityandelectricalconductivityofbioglycolbasedal2o3nanofluidsanddevelopmentofnewcorrelation AT wanhamzahwanazmi experimentaldeterminationofthermalconductivityandelectricalconductivityofbioglycolbasedal2o3nanofluidsanddevelopmentofnewcorrelation AT mamatrizalman experimentaldeterminationofthermalconductivityandelectricalconductivityofbioglycolbasedal2o3nanofluidsanddevelopmentofnewcorrelation |