Simulation of conjugate free convection heat transfer of NEPCM/Al2O3-kerosene non-Newtonian hybrid nanoliquid between a double-pipe space
The current study addresses the assessment of heat and mass transfer of NEPCM/Al2O3- Kerosene hybrid nanofluid inside a double pipes space as a part of a heat exchanger. The mentioned synthesis can reflect Newtonian or non-Newtonian properties following the well-known Carreau model. After finding th...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25004034 |
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| Summary: | The current study addresses the assessment of heat and mass transfer of NEPCM/Al2O3- Kerosene hybrid nanofluid inside a double pipes space as a part of a heat exchanger. The mentioned synthesis can reflect Newtonian or non-Newtonian properties following the well-known Carreau model. After finding the governing equations including fluid flow continuity, momentum components, and thermal in the fluid and the solid parts, they have been turned into their non-dimensional form. Next, the equations were formulated based on Galerkin finite element method. The results have been configured in the forms of curves, contours, and streamlines. The Nusselt number has a determinative role in the current study as well. The findings express that the non-Newtonian hybrid nanoliquid by shear thinning property takes the lead in Nusselt number, about 42 % against the Newtonian synthesis. Instead, a deterioration in the heat transfer rate by 9 % against the Newtonian fluid is obtained via shear thickening hybrid nanoliquid. Increasing the nanoparticles volume fraction (NEPCM and Al2O3), has the greatest effect on the shear-thickening hybrid nanoliquid, enhancing it by 13.5 %. In contrast, the shear-thinning hybrid nanoliquid shows only a 7.5 % improvement, demonstrating the lowest sensitivity to the added nanoparticles when compared to the Newtonian and shear-thickening fluids. |
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| ISSN: | 2214-157X |