Thermal and hydraulic performance investigation of microchannel heat sink with sidewall square pin-fins
This paper investigates the thermal performance of straight microchannel heat sinks featuring square-shaped fins on the sidewalls using a CFD developed model. The study evaluates the performance of the heat sink in terms of the total thermal resistance (Rth) and pumping power (PPf). The results show...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S259012302400149X |
| _version_ | 1797247702454501376 |
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| author | Fadi Alnaimat Ahmad Rahhal Bobby Mathew |
| author_facet | Fadi Alnaimat Ahmad Rahhal Bobby Mathew |
| author_sort | Fadi Alnaimat |
| collection | DOAJ |
| description | This paper investigates the thermal performance of straight microchannel heat sinks featuring square-shaped fins on the sidewalls using a CFD developed model. The study evaluates the performance of the heat sink in terms of the total thermal resistance (Rth) and pumping power (PPf). The results show that incorporating square-shaped fins improves thermal performance, however at the penalty of increased pressure drop. To combine heat transfer enhancement with increased pressure drop, the study uses the Figure of Merit (FOM) approach. The study finds that increasing the size of the fins reduces thermal resistance by an average of 53.5%, but Design 1, which has smaller fins, offers a higher FOM. Similarly, reducing the spacing between fins lowers thermal resistance by an average of 61.95%, but Design 5 with smaller spacing than Design 4 offers a higher FOM. Furthermore, smaller channel sizes reduce thermal resistance by an average of 51.43%, but Design 6, which has larger channel sizes than Design 7, provides a higher FOM. Additionally, reducing channel spacing reduces thermal resistance by an average of 62.2% without affecting the pumping power, and Design 8 with smaller spacing than Design 9 offers a higher FOM. |
| first_indexed | 2024-03-08T03:24:49Z |
| format | Article |
| id | doaj.art-cdf1b830f34f48eb94e941c3df5503b0 |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2024-04-24T20:02:54Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-cdf1b830f34f48eb94e941c3df5503b02024-03-24T07:01:05ZengElsevierResults in Engineering2590-12302024-03-0121101896Thermal and hydraulic performance investigation of microchannel heat sink with sidewall square pin-finsFadi Alnaimat0Ahmad Rahhal1Bobby Mathew2Mechanical Engineering Department, College of Engineering, United Arab Emirates University, 15551, Al Ain, Abu Dhabi, United Arab Emirates; National Water and Energy Center, United Arab Emirates University, Al Ain, United Arab Emirates; Corresponding author. Mechanical Engineering Department, College of Engineering, United Arab Emirates University, 15551, Al Ain, Abu Dhabi, United Arab Emirates.Mechanical Engineering Department, College of Engineering, United Arab Emirates University, 15551, Al Ain, Abu Dhabi, United Arab EmiratesMechanical Engineering Department, College of Engineering, United Arab Emirates University, 15551, Al Ain, Abu Dhabi, United Arab Emirates; National Water and Energy Center, United Arab Emirates University, Al Ain, United Arab EmiratesThis paper investigates the thermal performance of straight microchannel heat sinks featuring square-shaped fins on the sidewalls using a CFD developed model. The study evaluates the performance of the heat sink in terms of the total thermal resistance (Rth) and pumping power (PPf). The results show that incorporating square-shaped fins improves thermal performance, however at the penalty of increased pressure drop. To combine heat transfer enhancement with increased pressure drop, the study uses the Figure of Merit (FOM) approach. The study finds that increasing the size of the fins reduces thermal resistance by an average of 53.5%, but Design 1, which has smaller fins, offers a higher FOM. Similarly, reducing the spacing between fins lowers thermal resistance by an average of 61.95%, but Design 5 with smaller spacing than Design 4 offers a higher FOM. Furthermore, smaller channel sizes reduce thermal resistance by an average of 51.43%, but Design 6, which has larger channel sizes than Design 7, provides a higher FOM. Additionally, reducing channel spacing reduces thermal resistance by an average of 62.2% without affecting the pumping power, and Design 8 with smaller spacing than Design 9 offers a higher FOM.http://www.sciencedirect.com/science/article/pii/S259012302400149XElectronics coolingHeat transfer enhancementPin-finsPumping powerThermal resistance |
| spellingShingle | Fadi Alnaimat Ahmad Rahhal Bobby Mathew Thermal and hydraulic performance investigation of microchannel heat sink with sidewall square pin-fins Results in Engineering Electronics cooling Heat transfer enhancement Pin-fins Pumping power Thermal resistance |
| title | Thermal and hydraulic performance investigation of microchannel heat sink with sidewall square pin-fins |
| title_full | Thermal and hydraulic performance investigation of microchannel heat sink with sidewall square pin-fins |
| title_fullStr | Thermal and hydraulic performance investigation of microchannel heat sink with sidewall square pin-fins |
| title_full_unstemmed | Thermal and hydraulic performance investigation of microchannel heat sink with sidewall square pin-fins |
| title_short | Thermal and hydraulic performance investigation of microchannel heat sink with sidewall square pin-fins |
| title_sort | thermal and hydraulic performance investigation of microchannel heat sink with sidewall square pin fins |
| topic | Electronics cooling Heat transfer enhancement Pin-fins Pumping power Thermal resistance |
| url | http://www.sciencedirect.com/science/article/pii/S259012302400149X |
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