Thermo-hydraulic behavior of alumina/silica hybrid nanofluids through a straight minichannel heat sink
In this study, the hydraulic and thermal performances of dissimilar particles of alumina–silica/water hybrid nanofluid are experimentally investigated in a minichannel heat sink. Stable alumina–silica/water hybrid nanofluid is used as a coolant having a volume concentration of 0.01%. A total of 12 r...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-03-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X22000843 |
| _version_ | 1819289131354685440 |
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| author | Asif Khan Muddassir Ali |
| author_facet | Asif Khan Muddassir Ali |
| author_sort | Asif Khan |
| collection | DOAJ |
| description | In this study, the hydraulic and thermal performances of dissimilar particles of alumina–silica/water hybrid nanofluid are experimentally investigated in a minichannel heat sink. Stable alumina–silica/water hybrid nanofluid is used as a coolant having a volume concentration of 0.01%. A total of 12 rectangular minichannels with 1 mm depth, 1 mm width, and a hydraulic diameter of 22 mm are used. The effect of Reynolds number on the Nusselt number, heat transfer coefficient, thermal resistance, pressure drop, pumping power, and friction factor are analyzed for various heating powers. Results indicate that the alumina/silica hybrid nanofluid can enhance heat transfer and pressure drop in a straight minichannel heat sink as compared with the base fluid (water). For heating power at 55 W, the use of hybrid nanofluid enhances heat transfer rate, pressure drop, and thermal performance up to 13.79%, 4.35%, and 31.16%, respectively. Moreover, it can be concluded that heating power had a significant effect on pressure drop and heat transfer for hybrid nanofluids. Finally, the performance evaluation criteria (PEC) for all nanofluids in a straight minichannel heat sink is always greater than one. |
| first_indexed | 2024-12-24T03:01:58Z |
| format | Article |
| id | doaj.art-7717ac20ee9f4de3afd5a6a74f6027db |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-12-24T03:01:58Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-7717ac20ee9f4de3afd5a6a74f6027db2022-12-21T17:18:10ZengElsevierCase Studies in Thermal Engineering2214-157X2022-03-0131101838Thermo-hydraulic behavior of alumina/silica hybrid nanofluids through a straight minichannel heat sinkAsif Khan0Muddassir Ali1Department of Mechanical Engineering, Faculty of Mechanical and Aeronautical Engineering, University of Engineering and Technology, Taxila, 47050, PakistanDepartment of Mechanical Engineering, Faculty of Mechanical and Aeronautical Engineering, University of Engineering and Technology, Taxila, 47050, Pakistan; Department of Energy Engineering, Faculty of Mechanical and Aeronautical Engineering, University of Engineering and Technology, Taxila, 47050, Pakistan; Corresponding author. Department of Energy Engineering, Faculty of Mechanical and Aeronautical Engineering, University of Engineering and Technology, Taxila, 47050, Pakistan.In this study, the hydraulic and thermal performances of dissimilar particles of alumina–silica/water hybrid nanofluid are experimentally investigated in a minichannel heat sink. Stable alumina–silica/water hybrid nanofluid is used as a coolant having a volume concentration of 0.01%. A total of 12 rectangular minichannels with 1 mm depth, 1 mm width, and a hydraulic diameter of 22 mm are used. The effect of Reynolds number on the Nusselt number, heat transfer coefficient, thermal resistance, pressure drop, pumping power, and friction factor are analyzed for various heating powers. Results indicate that the alumina/silica hybrid nanofluid can enhance heat transfer and pressure drop in a straight minichannel heat sink as compared with the base fluid (water). For heating power at 55 W, the use of hybrid nanofluid enhances heat transfer rate, pressure drop, and thermal performance up to 13.79%, 4.35%, and 31.16%, respectively. Moreover, it can be concluded that heating power had a significant effect on pressure drop and heat transfer for hybrid nanofluids. Finally, the performance evaluation criteria (PEC) for all nanofluids in a straight minichannel heat sink is always greater than one.http://www.sciencedirect.com/science/article/pii/S2214157X22000843Heat transfer coefficientHybrid nanofluidMinichannel heat sinkNusselt numberPressure drop measurements |
| spellingShingle | Asif Khan Muddassir Ali Thermo-hydraulic behavior of alumina/silica hybrid nanofluids through a straight minichannel heat sink Case Studies in Thermal Engineering Heat transfer coefficient Hybrid nanofluid Minichannel heat sink Nusselt number Pressure drop measurements |
| title | Thermo-hydraulic behavior of alumina/silica hybrid nanofluids through a straight minichannel heat sink |
| title_full | Thermo-hydraulic behavior of alumina/silica hybrid nanofluids through a straight minichannel heat sink |
| title_fullStr | Thermo-hydraulic behavior of alumina/silica hybrid nanofluids through a straight minichannel heat sink |
| title_full_unstemmed | Thermo-hydraulic behavior of alumina/silica hybrid nanofluids through a straight minichannel heat sink |
| title_short | Thermo-hydraulic behavior of alumina/silica hybrid nanofluids through a straight minichannel heat sink |
| title_sort | thermo hydraulic behavior of alumina silica hybrid nanofluids through a straight minichannel heat sink |
| topic | Heat transfer coefficient Hybrid nanofluid Minichannel heat sink Nusselt number Pressure drop measurements |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X22000843 |
| work_keys_str_mv | AT asifkhan thermohydraulicbehaviorofaluminasilicahybridnanofluidsthroughastraightminichannelheatsink AT muddassirali thermohydraulicbehaviorofaluminasilicahybridnanofluidsthroughastraightminichannelheatsink |