Hydrothermal behavior of micro-polar Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavity
This paper investigates natural convection and entropy generation of the Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavity. The NEPCMs are made up of core and shell in which the PCMs are the core section that are capsulated in Nano-shells. These NEPCM particles go thro...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X22002854 |
| _version_ | 1818548815997698048 |
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| author | M.S. Sadeghi Ali J. Chamkha Rifaqat Ali Mohamed Bechir Ben Hamida M. Ghodrat Ahmed M. Galal |
| author_facet | M.S. Sadeghi Ali J. Chamkha Rifaqat Ali Mohamed Bechir Ben Hamida M. Ghodrat Ahmed M. Galal |
| author_sort | M.S. Sadeghi |
| collection | DOAJ |
| description | This paper investigates natural convection and entropy generation of the Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavity. The NEPCMs are made up of core and shell in which the PCMs are the core section that are capsulated in Nano-shells. These NEPCM particles go through phase change from solid to the liquid while absorbing the heat and release it when their phase changes back to solid. The Navier-Stokes equations are solved by Finite Element Method (FEM) to simulate the behavior of NEPCMs under a set of defined boundary conditions. The effect of Rayleigh number (104-106), micro-rotation parameter (0–2), Nano particle's concentration (0.01–0.05), Stefan number (0.1–0.5), and non-dimensional fusion temperature (0.1–0.3) on the Nusselt number and entropy generation of the fluid flow is also analyzed. The results reveal that the Stefan number, micro-rotation parameter, and non-dimensional fusion temperature have a negative impact on NC heat transfer of NEPCMs and reduce the Nuavg up to 25%, 42%, and 15% respectively. Conversely, the nanoparticle concentration enhances the Nuavg up to 36%. |
| first_indexed | 2024-12-12T08:25:13Z |
| format | Article |
| id | doaj.art-b65973ac58724738804d3304bf0726a6 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-12-12T08:25:13Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-b65973ac58724738804d3304bf0726a62022-12-22T00:31:17ZengElsevierCase Studies in Thermal Engineering2214-157X2022-07-0135102039Hydrothermal behavior of micro-polar Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavityM.S. Sadeghi0Ali J. Chamkha1Rifaqat Ali2Mohamed Bechir Ben Hamida3M. Ghodrat4Ahmed M. Galal5School of Engineering and Information Technology, UNSW, Canberra, Australia; Corresponding author.Faculty of Engineering, Kuwait College of Science and Technology, Doha District, KuwaitDepartment of Mathematics, College of Science and Arts, Muhayil, King Khalid University, 61413, Abha, Saudi ArabiaCollege of Engineering, Department of Chemical Engineering, University of Ha'il, Ha'il City, 81481, Saudi Arabia; Research Laboratory of Ionized Backgrounds and Reagents Studies (EMIR), Preparatory Institute for Engineering Studies of Monastir (IPEIM), University of Monastir, Monastir City, 5019, Tunisia; Higher School of Sciences and Technology of Hammam Sousse, Department of Physics, University of Sousse, Sousse City, 4011, TunisiaSchool of Engineering and Information Technology, UNSW, Canberra, AustraliaMechanical Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, Wadi Addawaser, 11991, Saudi Arabia; Production Engineering and Mechanical Design Department, Faculty of Engineering, Mansoura University, P.O 35516, Mansoura, EgyptThis paper investigates natural convection and entropy generation of the Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavity. The NEPCMs are made up of core and shell in which the PCMs are the core section that are capsulated in Nano-shells. These NEPCM particles go through phase change from solid to the liquid while absorbing the heat and release it when their phase changes back to solid. The Navier-Stokes equations are solved by Finite Element Method (FEM) to simulate the behavior of NEPCMs under a set of defined boundary conditions. The effect of Rayleigh number (104-106), micro-rotation parameter (0–2), Nano particle's concentration (0.01–0.05), Stefan number (0.1–0.5), and non-dimensional fusion temperature (0.1–0.3) on the Nusselt number and entropy generation of the fluid flow is also analyzed. The results reveal that the Stefan number, micro-rotation parameter, and non-dimensional fusion temperature have a negative impact on NC heat transfer of NEPCMs and reduce the Nuavg up to 25%, 42%, and 15% respectively. Conversely, the nanoparticle concentration enhances the Nuavg up to 36%.http://www.sciencedirect.com/science/article/pii/S2214157X22002854Micro-polar NEPCMNatural convectionEntropy generationL shaped inclined cavityFEM |
| spellingShingle | M.S. Sadeghi Ali J. Chamkha Rifaqat Ali Mohamed Bechir Ben Hamida M. Ghodrat Ahmed M. Galal Hydrothermal behavior of micro-polar Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavity Case Studies in Thermal Engineering Micro-polar NEPCM Natural convection Entropy generation L shaped inclined cavity FEM |
| title | Hydrothermal behavior of micro-polar Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavity |
| title_full | Hydrothermal behavior of micro-polar Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavity |
| title_fullStr | Hydrothermal behavior of micro-polar Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavity |
| title_full_unstemmed | Hydrothermal behavior of micro-polar Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavity |
| title_short | Hydrothermal behavior of micro-polar Nano-Encapsulated phase change materials (NEPCMs) in an inclined L-shaped cavity |
| title_sort | hydrothermal behavior of micro polar nano encapsulated phase change materials nepcms in an inclined l shaped cavity |
| topic | Micro-polar NEPCM Natural convection Entropy generation L shaped inclined cavity FEM |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X22002854 |
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