Energy storage hydrothermal and entropy analysis of micro-polar Nano-encapsulated phase change materials under the effect of exothermic reaction and external magnetic field
In recent years, the growing demand for electricity has underscored the need for efficient energy storage solutions. This study investigates the energy storage, hydrothermal performance, and entropy analysis of micro-polar nano-encapsulated phase change materials (NEPCMs) under the influence of an e...
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Elsevier
2025-05-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25002709 |
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| author | Ahmed M. Hassan Mohammed Azeez Alomari Abdalrahman Alajmi Abdellatif M. Sadeq Faris Alqurashi Mujtaba A. Flayyih |
| author_facet | Ahmed M. Hassan Mohammed Azeez Alomari Abdalrahman Alajmi Abdellatif M. Sadeq Faris Alqurashi Mujtaba A. Flayyih |
| author_sort | Ahmed M. Hassan |
| collection | DOAJ |
| description | In recent years, the growing demand for electricity has underscored the need for efficient energy storage solutions. This study investigates the energy storage, hydrothermal performance, and entropy analysis of micro-polar nano-encapsulated phase change materials (NEPCMs) under the influence of an exothermic reaction and an external magnetic field. The novelty of this work, which focuses on energy storage applications, lies in the use of a novel geometry and a range of highly effective parameters. The numerical study explores the physical interactions between heat and mass transfer, considering a wide range of parameters, including the Rayleigh number (103 ≤Ra≤ 105), Lewis number (0.1 ≤ Le ≤ 10), buoyancy ratio (1 ≤ Nz ≤ 5), Hartmann number (0 ≤ Ha ≤50), magnetic field inclination angle (0o ≤ γ ≤ 90o), Frank-Kamenetskii number (0 ≤ FK ≤ 2.5), NEPCM concentration (0.01 ≤ ϕ ≤ 0.035), fusion temperature (0.01 ≤ θf ≤ 0.035), Stefan number (0.1 ≤ Ste ≤0.9), and aspect ratio (0.5≤AR≤1.5). The results demonstrate that increasing Ra enhances the average Nusselt number (Nuav) by up to 429.9 % and the average Sherwood number (Shav) by up to 206 %, while increasing the total entropy generation (Stotal) by up to 13,014 %. Increasing FK reduces Nuav by up to 27.8 % but increases Shav by up to 42.7 %. The Le, Nz, and ϕ significantly impact the hydrothermal performance and entropy generation, with Nuav increasing by up to 36.3 % and Shav decreasing by up to 5.6 % as ϕ increases. The Ha substantially reduces Nuav and Shav by up to 62.3 % and 31.2 %, respectively, while the γ exhibits a non-monotonic behavior with an optimal angle around 60°. The most prominent conclusions highlight the complex interplay between various parameters, with Ra, Le, Nz, and Ha having substantial effects on the hydrothermal performance and entropy generation. The findings provide valuable insights for optimizing the design and operation of energy storage systems based on micro-polar NEPCMs. |
| format | Article |
| id | doaj-art-9448588bb8bc4b74aa7cce2727e0a0bf |
| institution | DOAJ |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
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| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-9448588bb8bc4b74aa7cce2727e0a0bf2025-08-20T03:18:15ZengElsevierCase Studies in Thermal Engineering2214-157X2025-05-016910601010.1016/j.csite.2025.106010Energy storage hydrothermal and entropy analysis of micro-polar Nano-encapsulated phase change materials under the effect of exothermic reaction and external magnetic fieldAhmed M. Hassan0Mohammed Azeez Alomari1Abdalrahman Alajmi2Abdellatif M. Sadeq3Faris Alqurashi4Mujtaba A. Flayyih5Department of Mechanical Engineering, University of Al-Qadisiyah, Al-Qadisiyah, 58001, IraqDepartment of Mechanical Engineering, University of Al-Qadisiyah, Ad-Diwaniyah, 58001, Iraq; College of Engineering, University of Warith Al-Anbiyaa, Karbala, IraqDepartment of Mechanical and Aerospace Engineering, University of Strathclyde, Glasgow, G1 1XJ, UK; Corresponding author.Mechanical and Industrial Engineering Department, College of Engineering, Qatar University, Doha, Qatar; Corresponding author.Department of Mechanical Engineering, College of Engineering, University of Bisha, P.O. Box 551, Bisha, 61922, Saudi ArabiaBiomedical Engineering Department, College of Engineering and Technologies, Al-Mustaqbal University, Hillah, IraqIn recent years, the growing demand for electricity has underscored the need for efficient energy storage solutions. This study investigates the energy storage, hydrothermal performance, and entropy analysis of micro-polar nano-encapsulated phase change materials (NEPCMs) under the influence of an exothermic reaction and an external magnetic field. The novelty of this work, which focuses on energy storage applications, lies in the use of a novel geometry and a range of highly effective parameters. The numerical study explores the physical interactions between heat and mass transfer, considering a wide range of parameters, including the Rayleigh number (103 ≤Ra≤ 105), Lewis number (0.1 ≤ Le ≤ 10), buoyancy ratio (1 ≤ Nz ≤ 5), Hartmann number (0 ≤ Ha ≤50), magnetic field inclination angle (0o ≤ γ ≤ 90o), Frank-Kamenetskii number (0 ≤ FK ≤ 2.5), NEPCM concentration (0.01 ≤ ϕ ≤ 0.035), fusion temperature (0.01 ≤ θf ≤ 0.035), Stefan number (0.1 ≤ Ste ≤0.9), and aspect ratio (0.5≤AR≤1.5). The results demonstrate that increasing Ra enhances the average Nusselt number (Nuav) by up to 429.9 % and the average Sherwood number (Shav) by up to 206 %, while increasing the total entropy generation (Stotal) by up to 13,014 %. Increasing FK reduces Nuav by up to 27.8 % but increases Shav by up to 42.7 %. The Le, Nz, and ϕ significantly impact the hydrothermal performance and entropy generation, with Nuav increasing by up to 36.3 % and Shav decreasing by up to 5.6 % as ϕ increases. The Ha substantially reduces Nuav and Shav by up to 62.3 % and 31.2 %, respectively, while the γ exhibits a non-monotonic behavior with an optimal angle around 60°. The most prominent conclusions highlight the complex interplay between various parameters, with Ra, Le, Nz, and Ha having substantial effects on the hydrothermal performance and entropy generation. The findings provide valuable insights for optimizing the design and operation of energy storage systems based on micro-polar NEPCMs.http://www.sciencedirect.com/science/article/pii/S2214157X25002709Thermal storageNEPCMPhase changeFree convectionEntropyExothermic |
| spellingShingle | Ahmed M. Hassan Mohammed Azeez Alomari Abdalrahman Alajmi Abdellatif M. Sadeq Faris Alqurashi Mujtaba A. Flayyih Energy storage hydrothermal and entropy analysis of micro-polar Nano-encapsulated phase change materials under the effect of exothermic reaction and external magnetic field Case Studies in Thermal Engineering Thermal storage NEPCM Phase change Free convection Entropy Exothermic |
| title | Energy storage hydrothermal and entropy analysis of micro-polar Nano-encapsulated phase change materials under the effect of exothermic reaction and external magnetic field |
| title_full | Energy storage hydrothermal and entropy analysis of micro-polar Nano-encapsulated phase change materials under the effect of exothermic reaction and external magnetic field |
| title_fullStr | Energy storage hydrothermal and entropy analysis of micro-polar Nano-encapsulated phase change materials under the effect of exothermic reaction and external magnetic field |
| title_full_unstemmed | Energy storage hydrothermal and entropy analysis of micro-polar Nano-encapsulated phase change materials under the effect of exothermic reaction and external magnetic field |
| title_short | Energy storage hydrothermal and entropy analysis of micro-polar Nano-encapsulated phase change materials under the effect of exothermic reaction and external magnetic field |
| title_sort | energy storage hydrothermal and entropy analysis of micro polar nano encapsulated phase change materials under the effect of exothermic reaction and external magnetic field |
| topic | Thermal storage NEPCM Phase change Free convection Entropy Exothermic |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25002709 |
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