Effects of Fin Height, Base Thickness, Blackening, Emissivity and Thermal Conductivity on Heat Dissipation of Die-Cast Aluminum Alloy Heat Sink
The effects of fin height, base thickness, blackening, emissivity and thermal conductivity on the heat dissipation for die-cast aluminum alloy heat sinks were investigated comprehensively. The thermal conductivity and emissivity vary depending on the aluminum alloy. It was clarified whether correlat...
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MDPI AG
2025-06-01
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| author | Hiroshi Fuse Shusuke Oe Toshio Haga |
| author_facet | Hiroshi Fuse Shusuke Oe Toshio Haga |
| author_sort | Hiroshi Fuse |
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| description | The effects of fin height, base thickness, blackening, emissivity and thermal conductivity on the heat dissipation for die-cast aluminum alloy heat sinks were investigated comprehensively. The thermal conductivity and emissivity vary depending on the aluminum alloy. It was clarified whether correlations between the influences of these factors exist. Three aluminum alloys with different thermal conductivities and emissivities were used in this study. Four-finned heat sinks were produced by die casting. Four fin heights and three base thicknesses were tested. In the as-cast (non-blackened) heat sinks, the emissivity had a greater effect on the heat dissipation than the thermal conductivity did. In blackened heat sinks, the heat dissipation increased as the thermal conductivity increased. For both the as-cast and blackened heat sinks, the heat dissipation increased as both the fin height and base thickness increased. Correlations between these influencing factors were also investigated. The blackened heat sink made from aluminum alloy with larger thermal conductivity showed the best heat dissipation performance. |
| format | Article |
| id | doaj-art-2daa16cc2cca40d3ae604d285010c28a |
| institution | Kabale University |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj-art-2daa16cc2cca40d3ae604d285010c28a2025-08-20T03:58:27ZengMDPI AGMetals2075-47012025-06-0115769610.3390/met15070696Effects of Fin Height, Base Thickness, Blackening, Emissivity and Thermal Conductivity on Heat Dissipation of Die-Cast Aluminum Alloy Heat SinkHiroshi Fuse0Shusuke Oe1Toshio Haga2School of Engineering, Osaka Institute of Technology, 5-16-1 Omiya Asahiku, Osaka 535-8585, JapanSchool of Engineering, Osaka Institute of Technology, 5-16-1 Omiya Asahiku, Osaka 535-8585, JapanSchool of Engineering, Osaka Institute of Technology, 5-16-1 Omiya Asahiku, Osaka 535-8585, JapanThe effects of fin height, base thickness, blackening, emissivity and thermal conductivity on the heat dissipation for die-cast aluminum alloy heat sinks were investigated comprehensively. The thermal conductivity and emissivity vary depending on the aluminum alloy. It was clarified whether correlations between the influences of these factors exist. Three aluminum alloys with different thermal conductivities and emissivities were used in this study. Four-finned heat sinks were produced by die casting. Four fin heights and three base thicknesses were tested. In the as-cast (non-blackened) heat sinks, the emissivity had a greater effect on the heat dissipation than the thermal conductivity did. In blackened heat sinks, the heat dissipation increased as the thermal conductivity increased. For both the as-cast and blackened heat sinks, the heat dissipation increased as both the fin height and base thickness increased. Correlations between these influencing factors were also investigated. The blackened heat sink made from aluminum alloy with larger thermal conductivity showed the best heat dissipation performance.https://www.mdpi.com/2075-4701/15/7/696heat sinkheat dissipationaluminum alloydie castingfin heightbase thickness |
| spellingShingle | Hiroshi Fuse Shusuke Oe Toshio Haga Effects of Fin Height, Base Thickness, Blackening, Emissivity and Thermal Conductivity on Heat Dissipation of Die-Cast Aluminum Alloy Heat Sink Metals heat sink heat dissipation aluminum alloy die casting fin height base thickness |
| title | Effects of Fin Height, Base Thickness, Blackening, Emissivity and Thermal Conductivity on Heat Dissipation of Die-Cast Aluminum Alloy Heat Sink |
| title_full | Effects of Fin Height, Base Thickness, Blackening, Emissivity and Thermal Conductivity on Heat Dissipation of Die-Cast Aluminum Alloy Heat Sink |
| title_fullStr | Effects of Fin Height, Base Thickness, Blackening, Emissivity and Thermal Conductivity on Heat Dissipation of Die-Cast Aluminum Alloy Heat Sink |
| title_full_unstemmed | Effects of Fin Height, Base Thickness, Blackening, Emissivity and Thermal Conductivity on Heat Dissipation of Die-Cast Aluminum Alloy Heat Sink |
| title_short | Effects of Fin Height, Base Thickness, Blackening, Emissivity and Thermal Conductivity on Heat Dissipation of Die-Cast Aluminum Alloy Heat Sink |
| title_sort | effects of fin height base thickness blackening emissivity and thermal conductivity on heat dissipation of die cast aluminum alloy heat sink |
| topic | heat sink heat dissipation aluminum alloy die casting fin height base thickness |
| url | https://www.mdpi.com/2075-4701/15/7/696 |
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