Simulation of Convective Heat Transfer and Pressure Drop in Laminar Flow of Al2O3/water and CuO/water Nanofluids Through Square and Triangular Cross-Sectional Ducts
In this study, the convective heat transfer and pressure drop in laminar flow of Al2O3/water and CuO/water nanofluids through square and triangular cross-sectional ducts have been numerically investigated using new technique. It has been assumed that there is constant heat flux boundary condition at...
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| Language: | English |
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Materials and Energy Research Center (MERC)
2015-02-01
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| Series: | Journal of Renewable Energy and Environment |
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| Online Access: | https://www.jree.ir/article_70065_cdd470fde7d09798ce7ad7665a69ef57.pdf |
| _version_ | 1797790476251693056 |
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| author | S. Zeinali Heris Farhad Oghazian Mahmoud Khademi Effat Saeedi |
| author_facet | S. Zeinali Heris Farhad Oghazian Mahmoud Khademi Effat Saeedi |
| author_sort | S. Zeinali Heris |
| collection | DOAJ |
| description | In this study, the convective heat transfer and pressure drop in laminar flow of Al2O3/water and CuO/water nanofluids through square and triangular cross-sectional ducts have been numerically investigated using new technique. It has been assumed that there is constant heat flux boundary condition at walls. In addition, to include the presence of nanoparticles, the dispersion model has been used, and the system was solved numerically. Results show that by increasing the volumetric concentration and decreasing the size of nanoparticles, Nusselt number has been enhanced. Also, the Nusselt number increases by increasing the Reynolds number. In all cases, it has been observed that heat transfer coefficient of nanofluid increases in comparison with heat transfer coefficient of pure water. The results show that by adding nanoparticles, pressure drop increases in ducts. In square and triangular ducts, pressure drop is higher when we use CuO/water nanofluid instead of Al2O3/water nanofluid. In the same way, pressure drop increases by increase of faces of non-circular ducts. |
| first_indexed | 2024-03-13T02:05:09Z |
| format | Article |
| id | doaj.art-54970c0622574d1785db3322d84ec670 |
| institution | Directory Open Access Journal |
| issn | 2423-5547 2423-7469 |
| language | English |
| last_indexed | 2024-03-13T02:05:09Z |
| publishDate | 2015-02-01 |
| publisher | Materials and Energy Research Center (MERC) |
| record_format | Article |
| series | Journal of Renewable Energy and Environment |
| spelling | doaj.art-54970c0622574d1785db3322d84ec6702023-07-01T09:11:38ZengMaterials and Energy Research Center (MERC)Journal of Renewable Energy and Environment2423-55472423-74692015-02-012161810.30501/jree.2015.7006570065Simulation of Convective Heat Transfer and Pressure Drop in Laminar Flow of Al2O3/water and CuO/water Nanofluids Through Square and Triangular Cross-Sectional DuctsS. Zeinali Heris0Farhad Oghazian1Mahmoud Khademi2Effat Saeedi3Department of Chemical Engineering, Ferdowsi University of Mashhad, Mashhad, IranDepartment of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, IranDepartment of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, IranDepartment of Chemical Engineering, Ferdowsi University of Mashhad, Mashhad, IranIn this study, the convective heat transfer and pressure drop in laminar flow of Al2O3/water and CuO/water nanofluids through square and triangular cross-sectional ducts have been numerically investigated using new technique. It has been assumed that there is constant heat flux boundary condition at walls. In addition, to include the presence of nanoparticles, the dispersion model has been used, and the system was solved numerically. Results show that by increasing the volumetric concentration and decreasing the size of nanoparticles, Nusselt number has been enhanced. Also, the Nusselt number increases by increasing the Reynolds number. In all cases, it has been observed that heat transfer coefficient of nanofluid increases in comparison with heat transfer coefficient of pure water. The results show that by adding nanoparticles, pressure drop increases in ducts. In square and triangular ducts, pressure drop is higher when we use CuO/water nanofluid instead of Al2O3/water nanofluid. In the same way, pressure drop increases by increase of faces of non-circular ducts.https://www.jree.ir/article_70065_cdd470fde7d09798ce7ad7665a69ef57.pdfnanofluidconvective heat transferdispersion modelsquare and triangular cross-sectional ductspressure drop |
| spellingShingle | S. Zeinali Heris Farhad Oghazian Mahmoud Khademi Effat Saeedi Simulation of Convective Heat Transfer and Pressure Drop in Laminar Flow of Al2O3/water and CuO/water Nanofluids Through Square and Triangular Cross-Sectional Ducts Journal of Renewable Energy and Environment nanofluid convective heat transfer dispersion model square and triangular cross-sectional ducts pressure drop |
| title | Simulation of Convective Heat Transfer and Pressure Drop in Laminar Flow of Al2O3/water and CuO/water Nanofluids Through Square and Triangular Cross-Sectional Ducts |
| title_full | Simulation of Convective Heat Transfer and Pressure Drop in Laminar Flow of Al2O3/water and CuO/water Nanofluids Through Square and Triangular Cross-Sectional Ducts |
| title_fullStr | Simulation of Convective Heat Transfer and Pressure Drop in Laminar Flow of Al2O3/water and CuO/water Nanofluids Through Square and Triangular Cross-Sectional Ducts |
| title_full_unstemmed | Simulation of Convective Heat Transfer and Pressure Drop in Laminar Flow of Al2O3/water and CuO/water Nanofluids Through Square and Triangular Cross-Sectional Ducts |
| title_short | Simulation of Convective Heat Transfer and Pressure Drop in Laminar Flow of Al2O3/water and CuO/water Nanofluids Through Square and Triangular Cross-Sectional Ducts |
| title_sort | simulation of convective heat transfer and pressure drop in laminar flow of al2o3 water and cuo water nanofluids through square and triangular cross sectional ducts |
| topic | nanofluid convective heat transfer dispersion model square and triangular cross-sectional ducts pressure drop |
| url | https://www.jree.ir/article_70065_cdd470fde7d09798ce7ad7665a69ef57.pdf |
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