Comparative study of thermohydraulic performance in mini-channel heat sink systems: Multi-objective optimization and exergy considerations
A numerical investigation is undertaken, employing a 3D conjugated heat transfer model to examine the impact of geometric configurations and hydrodynamical parameters on the overall thermal resistance and pumping power in mini-channels heat sinks. The aim lies in its holistic approach, integrating t...
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Elsevier
2025-02-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24017532 |
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| author | Zouheyr Noui Mohamed Si-Ameur Nabil Bessanane Amel Djebara Adnan Ibrahim Muhammad Amir Aziat Bin Ishak Raheem K. Ajeel Sharul Sham Dol |
| author_facet | Zouheyr Noui Mohamed Si-Ameur Nabil Bessanane Amel Djebara Adnan Ibrahim Muhammad Amir Aziat Bin Ishak Raheem K. Ajeel Sharul Sham Dol |
| author_sort | Zouheyr Noui |
| collection | DOAJ |
| description | A numerical investigation is undertaken, employing a 3D conjugated heat transfer model to examine the impact of geometric configurations and hydrodynamical parameters on the overall thermal resistance and pumping power in mini-channels heat sinks. The aim lies in its holistic approach, integrating the non-uniform section of the mini-channel, the impact of the inlet velocity, the energy and exergy analysis, multi-objective optimization and performance evaluation criteria (PEC) evaluations, and the consideration of metal Galinstan and Cu-water nanofluid working fluids. The parametric analysis highlighted metal Galinstan as the best coolant for the five configurations involved in the present study. Furthermore, The PEC results indicate that the best performance is achieved by the Converged-Diverged Mini-channel (CDMC)heat sink. CDMC configuration with metal Galinstan performs well in terms of exergy evaluations and shows a better average temperature distribution with a maximum temperature of about 328K. The optimal inlet velocity (Uin = 0.21 m/s) is determined on the basis of the pumping power and thermal resistance profiles. The optimization process is based on the impact of the mini-channel's maximum width on the PEC. It is shown that the PEC increases with the maximum width of the CDMC and the highest (PEC = 1.31) is obtained at a maximum width of 0.95 mm. |
| format | Article |
| id | doaj-art-2aa59fde264f4434a83feb16f9de6ebd |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-2aa59fde264f4434a83feb16f9de6ebd2025-02-02T05:27:16ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105722Comparative study of thermohydraulic performance in mini-channel heat sink systems: Multi-objective optimization and exergy considerationsZouheyr Noui0Mohamed Si-Ameur1Nabil Bessanane2Amel Djebara3Adnan Ibrahim4Muhammad Amir Aziat Bin Ishak5Raheem K. Ajeel6Sharul Sham Dol7University of Batna 2, Faculty of Technology, Electrical Department, LESEI Laboratory, Avenue Chahid Boukhlouf Med Elhadi, 05000, Batna, AlgeriaUniversity of Batna 2, Faculty of Technology, Mechanical Department, LESEI Laboratory, Avenue Chahid Boukhlouf Med Elhadi, 05000, Batna, Algeria; Corresponding author.University of Batna 2, Faculty of Technology, Mechanical Department, LESEI Laboratory, Avenue Chahid Boukhlouf Med Elhadi, 05000, Batna, Algeria; Corresponding author.University of Batna 2, Faculty of Technology, Electrical Department, LESEI Laboratory, Avenue Chahid Boukhlouf Med Elhadi, 05000, Batna, AlgeriaSolar Energy Research Institute, Universiti Kebangsaan Malaysia, Bangi, 43600, Malaysia; Corresponding author.School of Engineering, Faculty of Innovation & Technology, Taylor University, 47500, Subang Jaya, MalaysiaSolar Energy Research Institute, Universiti Kebangsaan Malaysia, Bangi, 43600, MalaysiaDepartment of Mechanical and Industrial Engineering, Abu Dhabi University, Abu Dhabi, PO Box 59911, United Arab EmiratesA numerical investigation is undertaken, employing a 3D conjugated heat transfer model to examine the impact of geometric configurations and hydrodynamical parameters on the overall thermal resistance and pumping power in mini-channels heat sinks. The aim lies in its holistic approach, integrating the non-uniform section of the mini-channel, the impact of the inlet velocity, the energy and exergy analysis, multi-objective optimization and performance evaluation criteria (PEC) evaluations, and the consideration of metal Galinstan and Cu-water nanofluid working fluids. The parametric analysis highlighted metal Galinstan as the best coolant for the five configurations involved in the present study. Furthermore, The PEC results indicate that the best performance is achieved by the Converged-Diverged Mini-channel (CDMC)heat sink. CDMC configuration with metal Galinstan performs well in terms of exergy evaluations and shows a better average temperature distribution with a maximum temperature of about 328K. The optimal inlet velocity (Uin = 0.21 m/s) is determined on the basis of the pumping power and thermal resistance profiles. The optimization process is based on the impact of the mini-channel's maximum width on the PEC. It is shown that the PEC increases with the maximum width of the CDMC and the highest (PEC = 1.31) is obtained at a maximum width of 0.95 mm.http://www.sciencedirect.com/science/article/pii/S2214157X24017532Mini-channel heat sinkNanofluidGalinstanCFDExergyPEC |
| spellingShingle | Zouheyr Noui Mohamed Si-Ameur Nabil Bessanane Amel Djebara Adnan Ibrahim Muhammad Amir Aziat Bin Ishak Raheem K. Ajeel Sharul Sham Dol Comparative study of thermohydraulic performance in mini-channel heat sink systems: Multi-objective optimization and exergy considerations Case Studies in Thermal Engineering Mini-channel heat sink Nanofluid Galinstan CFD Exergy PEC |
| title | Comparative study of thermohydraulic performance in mini-channel heat sink systems: Multi-objective optimization and exergy considerations |
| title_full | Comparative study of thermohydraulic performance in mini-channel heat sink systems: Multi-objective optimization and exergy considerations |
| title_fullStr | Comparative study of thermohydraulic performance in mini-channel heat sink systems: Multi-objective optimization and exergy considerations |
| title_full_unstemmed | Comparative study of thermohydraulic performance in mini-channel heat sink systems: Multi-objective optimization and exergy considerations |
| title_short | Comparative study of thermohydraulic performance in mini-channel heat sink systems: Multi-objective optimization and exergy considerations |
| title_sort | comparative study of thermohydraulic performance in mini channel heat sink systems multi objective optimization and exergy considerations |
| topic | Mini-channel heat sink Nanofluid Galinstan CFD Exergy PEC |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24017532 |
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