Optimization of heat sinks with plate fins in air-jet cooling
Heat density of high-load electronics such as high-performance servers and the inverters used in vehicles has been increasing as the result of higher processing speeds and computational scale, and higher output, etc. We therefore investigated an air-jet cooling structure that uses a plate-fin heat s...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2014-03-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/80/811/80_2014tep0043/_pdf/-char/en |
| _version_ | 1828099312428515328 |
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| author | Takayuki ATARASHI Tetsuya TANAKA Shigeyasu TSUBAKI |
| author_facet | Takayuki ATARASHI Tetsuya TANAKA Shigeyasu TSUBAKI |
| author_sort | Takayuki ATARASHI |
| collection | DOAJ |
| description | Heat density of high-load electronics such as high-performance servers and the inverters used in vehicles has been increasing as the result of higher processing speeds and computational scale, and higher output, etc. We therefore investigated an air-jet cooling structure that uses a plate-fin heat sink with the objective of developing an air-cooling structure that can provide efficient, uniform cooling for high-density mounting configurations in high-load electronics. The plate-fin heat sink mounted on a semiconductor package was cooled by an air jet injected from a rectangular nozzle mounted on top of the heat sink. The heat sink shapes and nozzle width, as well as the blower power, were changed to investigate the effect on heat transfer. This allowed the optimal parameters to be found for the nozzle width, the fin spacing, and the fin height of the heat sink, thereby resulting in a maximum heat transfer coefficient. Also, the flow pattern in the heat sink was visualized qualitatively. The results show the heat transfer coefficient of the air jet cooling is larger than that of parallel flow cooling under constant blower power consumption. And it takes maximum values with H/Wf= 0.35-0.4, which is unique phenomenon to an air jet cooling and is not seen in parallel flow cooling. |
| first_indexed | 2024-04-11T08:14:07Z |
| format | Article |
| id | doaj.art-c58e6b84dd544b668af7bfb383b5f693 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T08:14:07Z |
| publishDate | 2014-03-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-c58e6b84dd544b668af7bfb383b5f6932022-12-22T04:35:14ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612014-03-0180811TEP0043TEP004310.1299/transjsme.2014tep0043transjsmeOptimization of heat sinks with plate fins in air-jet coolingTakayuki ATARASHI0Tetsuya TANAKAShigeyasu TSUBAKIHitachi, Ltd., Infrastructure Systems CompanyHeat density of high-load electronics such as high-performance servers and the inverters used in vehicles has been increasing as the result of higher processing speeds and computational scale, and higher output, etc. We therefore investigated an air-jet cooling structure that uses a plate-fin heat sink with the objective of developing an air-cooling structure that can provide efficient, uniform cooling for high-density mounting configurations in high-load electronics. The plate-fin heat sink mounted on a semiconductor package was cooled by an air jet injected from a rectangular nozzle mounted on top of the heat sink. The heat sink shapes and nozzle width, as well as the blower power, were changed to investigate the effect on heat transfer. This allowed the optimal parameters to be found for the nozzle width, the fin spacing, and the fin height of the heat sink, thereby resulting in a maximum heat transfer coefficient. Also, the flow pattern in the heat sink was visualized qualitatively. The results show the heat transfer coefficient of the air jet cooling is larger than that of parallel flow cooling under constant blower power consumption. And it takes maximum values with H/Wf= 0.35-0.4, which is unique phenomenon to an air jet cooling and is not seen in parallel flow cooling.https://www.jstage.jst.go.jp/article/transjsme/80/811/80_2014tep0043/_pdf/-char/enheat transferforced convectionjetcoolingheat sinkfinpressure dropvisualizationlarge scale computing system |
| spellingShingle | Takayuki ATARASHI Tetsuya TANAKA Shigeyasu TSUBAKI Optimization of heat sinks with plate fins in air-jet cooling Nihon Kikai Gakkai ronbunshu heat transfer forced convection jet cooling heat sink fin pressure drop visualization large scale computing system |
| title | Optimization of heat sinks with plate fins in air-jet cooling |
| title_full | Optimization of heat sinks with plate fins in air-jet cooling |
| title_fullStr | Optimization of heat sinks with plate fins in air-jet cooling |
| title_full_unstemmed | Optimization of heat sinks with plate fins in air-jet cooling |
| title_short | Optimization of heat sinks with plate fins in air-jet cooling |
| title_sort | optimization of heat sinks with plate fins in air jet cooling |
| topic | heat transfer forced convection jet cooling heat sink fin pressure drop visualization large scale computing system |
| url | https://www.jstage.jst.go.jp/article/transjsme/80/811/80_2014tep0043/_pdf/-char/en |
| work_keys_str_mv | AT takayukiatarashi optimizationofheatsinkswithplatefinsinairjetcooling AT tetsuyatanaka optimizationofheatsinkswithplatefinsinairjetcooling AT shigeyasutsubaki optimizationofheatsinkswithplatefinsinairjetcooling |