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Computational Analysis of Hybrid Nanofluid Flow in a Double-Tube Heat Exchanger: A Numerical Study | ||
| Journal of Applied and Computational Mechanics | ||
| دوره 10، شماره 3، مهر 2024، صفحه 479-487 اصل مقاله (1003.17 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22055/jacm.2024.45368.4368 | ||
| نویسندگان | ||
| Djamel Abdelkader BRAKNA* 1؛ Hamidou BENZENINE1، 2 | ||
| 1Smart Structures Laboratory, Faculty of Science and Technology, University Belhadj Bouchaib BP 284, Ain-Temouchent, 46000, Algeria | ||
| 2Laboratory of Energetic and Applied Thermal (ETAP), Faculty of Technology, University of Tlemcen BP 230, 13000, Algeria | ||
| چکیده | ||
| The heat transfer improvement and the increase of heat exchangers’ efficiency represent a very important issue in the energy field. Many research projects have focused on the use of fluids with high thermal conductivity such as nanofluids. In this case, hybrid nanofluids, are a new class of nanofluids with good heat transfer characteristics. The present work falls within this framework and involves a numerical study to examine the influence of two oil-based hybrid nanofluids, Al2O3-MWCNT and MgO-MWCNT, with different volume concentrations and inlet flow rates. More to the point, the impact of different nanoparticle ratio and the location of hybrid nanofluid in a laminar flow of two-pipe counter-current heat exchanger have been investigated. In virtue of which, the results illustrate that increasing the volume concentration of nanoparticles and the flow rate of the hybrid nanofluid has a positive impact on improving the heat transfer rate. Therefore, the improvement in heat transfer rate reached 77.8% for Al2O3-MWCNT/oil hybrid nanofluid and 59.5% for MgO-MWCNT/oil hybrid nanofluid. Similarly, the study has also revealed that the preferred nanoparticles ratio for Al2O3-MWCNT/oil hybrid nanofluid is in the order of (25:75) and its circulation in the inner tube as a hot fluid makes it possible to improve the thermal performance of the considered two-tube heat exchanger to a greater advantage. | ||
| کلیدواژهها | ||
| Two-pipe heat exchanger؛ Hybrid nanofluid؛ Computational Fluid Dynamics (CFD)؛ Heat transfer rate | ||
| مراجع | ||
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