Development of enhanced air-cooled heat sink arrays
This project presents the forced convective heat transfer performances of tree-shaped heat sinks fabricated by Selective Laser Melting (SLM). Tree-shaped heat sinks were designed using methods of Constructal Theory and were investigated using simulations to develop an improved tree-shaped heat sink...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2020
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| Online Access: | https://hdl.handle.net/10356/140849 |
| _version_ | 1811680152522850304 |
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| author | Ku, Kevin Sheng Wen |
| author2 | Leong Kai Choong |
| author_facet | Leong Kai Choong Ku, Kevin Sheng Wen |
| author_sort | Ku, Kevin Sheng Wen |
| collection | NTU |
| description | This project presents the forced convective heat transfer performances of tree-shaped heat sinks fabricated by Selective Laser Melting (SLM). Tree-shaped heat sinks were designed using methods of Constructal Theory and were investigated using simulations to develop an improved tree-shaped heat sink design in terms of heat transfer performance. Tree-shaped heat sinks with bifurcation angles ranging from 90° to 109.47° were fabricated and investigated experimentally and numerically. The experimental and numerical results were compared and the effects of bifurcation angles on heat transfer performance were examined. Experiments were conducted in a vertical duct flow channel with Reynolds number (Re) ranging from 2970 to 20979. The heat transfer coefficient (h) and the Nusselt number (Nu) were computed based on the base area of the heat sink (Ab). The results for the experiments showed that the 90° heat sink specimens had a maximum of 6.0 % and 6.5 % enhancement in h than the 100˚ and 109.47˚ bifurcation heat sink specimens, respectively. The simulation results showed a similar trend with 90° heat sink specimen having a maximum of 7.4 % and 7.5 % enhancements in h than the 100˚ and 109.47˚ heat sink specimens, respectively. The Nusellt number of experimental and simulation results showed a similar trend with the 90° heat sink specimen having the best performance among the heat sinks. |
| first_indexed | 2024-10-01T03:20:30Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/140849 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:20:30Z |
| publishDate | 2020 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1408492023-03-04T20:01:56Z Development of enhanced air-cooled heat sink arrays Ku, Kevin Sheng Wen Leong Kai Choong Wong Teck Neng School of Mechanical and Aerospace Engineering MKCLEONG@ntu.edu.sg, MTNWONG@ntu.edu.sg Engineering::Mechanical engineering This project presents the forced convective heat transfer performances of tree-shaped heat sinks fabricated by Selective Laser Melting (SLM). Tree-shaped heat sinks were designed using methods of Constructal Theory and were investigated using simulations to develop an improved tree-shaped heat sink design in terms of heat transfer performance. Tree-shaped heat sinks with bifurcation angles ranging from 90° to 109.47° were fabricated and investigated experimentally and numerically. The experimental and numerical results were compared and the effects of bifurcation angles on heat transfer performance were examined. Experiments were conducted in a vertical duct flow channel with Reynolds number (Re) ranging from 2970 to 20979. The heat transfer coefficient (h) and the Nusselt number (Nu) were computed based on the base area of the heat sink (Ab). The results for the experiments showed that the 90° heat sink specimens had a maximum of 6.0 % and 6.5 % enhancement in h than the 100˚ and 109.47˚ bifurcation heat sink specimens, respectively. The simulation results showed a similar trend with 90° heat sink specimen having a maximum of 7.4 % and 7.5 % enhancements in h than the 100˚ and 109.47˚ heat sink specimens, respectively. The Nusellt number of experimental and simulation results showed a similar trend with the 90° heat sink specimen having the best performance among the heat sinks. Bachelor of Engineering (Mechanical Engineering) 2020-06-02T07:51:56Z 2020-06-02T07:51:56Z 2020 Final Year Project (FYP) https://hdl.handle.net/10356/140849 en B322 application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Mechanical engineering Ku, Kevin Sheng Wen Development of enhanced air-cooled heat sink arrays |
| title | Development of enhanced air-cooled heat sink arrays |
| title_full | Development of enhanced air-cooled heat sink arrays |
| title_fullStr | Development of enhanced air-cooled heat sink arrays |
| title_full_unstemmed | Development of enhanced air-cooled heat sink arrays |
| title_short | Development of enhanced air-cooled heat sink arrays |
| title_sort | development of enhanced air cooled heat sink arrays |
| topic | Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/140849 |
| work_keys_str_mv | AT kukevinshengwen developmentofenhancedaircooledheatsinkarrays |