Investigating the effect of external heat flux on the thermal behaviour of hybrid paraffin-air heat sink: A molecular dynamics approach
One of today's concerns regarding energy storage units is the low rate of storage and release of thermal energy and, as a result, the efficiency loss in these units. Subsequently, different strategies are utilized to solve this concern, such as using phase change materials (PCMs) and nanostruct...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23009590 |
| _version_ | 1797422586019184640 |
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| author | Ke Wang Dheyaa J. Jasim As'ad Alizadeh Ameer H. Al-Rubaye Navid Nasajpour-Esfahani Soheil Salahshour Shadi Esmaeili M. Hekmatifar |
| author_facet | Ke Wang Dheyaa J. Jasim As'ad Alizadeh Ameer H. Al-Rubaye Navid Nasajpour-Esfahani Soheil Salahshour Shadi Esmaeili M. Hekmatifar |
| author_sort | Ke Wang |
| collection | DOAJ |
| description | One of today's concerns regarding energy storage units is the low rate of storage and release of thermal energy and, as a result, the efficiency loss in these units. Subsequently, different strategies are utilized to solve this concern, such as using phase change materials (PCMs) and nanostructures. The background is the low storage and release rate of thermal energy in energy storage units, which leads to efficiency loss. This issue concerns many applications, including energy storage in buildings, vehicles, and electronic devices. This study aims to investigate the effect of external heat flux (EHF) on the thermal efficiency of a specific heat sink by employing molecular dynamics (MD) simulation. After ensuring the simulated atomic structures are stable, EHF is applied to see how it affects the thermal behaviour of the combination. The obtained results show that by increasing the EHF applied to the prototype, the thermal behaviour of the structure improves. So, with the increase of EHF from 0.1 W/m2 to 0.5 W/m2, the heat flux and thermal conductivity (TC) increase from 212.27 W/m2 to 317.90 W/mK to 286.71 W/m2 and 340.03 W/mK. The findings significantly affect energy storage unit efficiency and can inform future research and development efforts. |
| first_indexed | 2024-03-09T07:35:28Z |
| format | Article |
| id | doaj.art-9884d591145f4781a2f1ebe8cacee15d |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-09T07:35:28Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-9884d591145f4781a2f1ebe8cacee15d2023-12-03T05:41:17ZengElsevierCase Studies in Thermal Engineering2214-157X2023-12-0152103653Investigating the effect of external heat flux on the thermal behaviour of hybrid paraffin-air heat sink: A molecular dynamics approachKe Wang0Dheyaa J. Jasim1As'ad Alizadeh2Ameer H. Al-Rubaye3Navid Nasajpour-Esfahani4Soheil Salahshour5Shadi Esmaeili6M. Hekmatifar7Guangling College, Yangzhou University, Yangzhou 225000, Jiangsu, ChinaDepartment of Petroleum Engineering, Al-Amarah University College, Maysan, IraqDepartment of Civil Engineering, College of Engineering, Cihan University-Erbil, Erbil, IraqDepartment of Petroleum Engineering, Al-Kitab University, Altun Kupri, IraqDepartment of Material Science and Engineering, Georgia Institute of Technology, Atlanta 30332, USAFaculty of Engineering and Natural Sciences, Istanbul Okan University, Istanbul, Turkey; Faculty of Engineering and Natural Sciences, Bahcesehir University, Istanbul, Turkey; Department of Computer Science and Mathematics, Lebanese American University, Beirut, LebanonFaculty of Physics, Semnan University, P.O. Box: 35195-363, Semnan, IranDepartment of Mechanical Engineering, Islamic Azad University, Iran; Corresponding author. Guangling college, Yangzhou University, Yangzhou 225000, Jiangsu, China.One of today's concerns regarding energy storage units is the low rate of storage and release of thermal energy and, as a result, the efficiency loss in these units. Subsequently, different strategies are utilized to solve this concern, such as using phase change materials (PCMs) and nanostructures. The background is the low storage and release rate of thermal energy in energy storage units, which leads to efficiency loss. This issue concerns many applications, including energy storage in buildings, vehicles, and electronic devices. This study aims to investigate the effect of external heat flux (EHF) on the thermal efficiency of a specific heat sink by employing molecular dynamics (MD) simulation. After ensuring the simulated atomic structures are stable, EHF is applied to see how it affects the thermal behaviour of the combination. The obtained results show that by increasing the EHF applied to the prototype, the thermal behaviour of the structure improves. So, with the increase of EHF from 0.1 W/m2 to 0.5 W/m2, the heat flux and thermal conductivity (TC) increase from 212.27 W/m2 to 317.90 W/mK to 286.71 W/m2 and 340.03 W/mK. The findings significantly affect energy storage unit efficiency and can inform future research and development efforts.http://www.sciencedirect.com/science/article/pii/S2214157X23009590Phase change materialHeat fluxThermal performanceHeat sinkMolecular dynamics simulation |
| spellingShingle | Ke Wang Dheyaa J. Jasim As'ad Alizadeh Ameer H. Al-Rubaye Navid Nasajpour-Esfahani Soheil Salahshour Shadi Esmaeili M. Hekmatifar Investigating the effect of external heat flux on the thermal behaviour of hybrid paraffin-air heat sink: A molecular dynamics approach Case Studies in Thermal Engineering Phase change material Heat flux Thermal performance Heat sink Molecular dynamics simulation |
| title | Investigating the effect of external heat flux on the thermal behaviour of hybrid paraffin-air heat sink: A molecular dynamics approach |
| title_full | Investigating the effect of external heat flux on the thermal behaviour of hybrid paraffin-air heat sink: A molecular dynamics approach |
| title_fullStr | Investigating the effect of external heat flux on the thermal behaviour of hybrid paraffin-air heat sink: A molecular dynamics approach |
| title_full_unstemmed | Investigating the effect of external heat flux on the thermal behaviour of hybrid paraffin-air heat sink: A molecular dynamics approach |
| title_short | Investigating the effect of external heat flux on the thermal behaviour of hybrid paraffin-air heat sink: A molecular dynamics approach |
| title_sort | investigating the effect of external heat flux on the thermal behaviour of hybrid paraffin air heat sink a molecular dynamics approach |
| topic | Phase change material Heat flux Thermal performance Heat sink Molecular dynamics simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23009590 |
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