碩士 / 中原大學 / 機械工程研究所 / 94 / ABSTRACT
The main purpose of this study is to build heat sink above heat source, The fluid type from fan is to impinge heat sink to reach thermal dissipation effect. The heat source is usually equipped under the heat sink. Because of the fan hub, the fluid type is non-uniform flow. It only has minimum flow to impinge the place that need thermal dissipation urgently. In view of this, I want to discuss the thermal efficiency of heating dissipation in different heat sinks between non-uniform flow and uniform flow.
This article use Icepak software CFD package to simulate the thermal efficiency in different flow types and heat sinks. The heat sink adopt four types, 6 parallel plate heat sink, 7 parallel plate heat sink, 6×6 array heat sink, 7×7 array heat sink, The dimension of heat sink base is 80mm×80mm, thickness is 8mm, and fin width is 6mm, 7mm, 8mm, 9mm, 10mm, fin height is 40mm, 60mm, 80mm. The dimension of hot spot is 31.5mm×31.5mm, the power is 80w, flow rate is (45CFM).
Result show that under the fixed flow rate, it has better thermal efficiency for using non-uniform flow than using uniform flow to impinging heat sink. It also has different thermal character in different heat sink geometry.
| Identifer | oai:union.ndltd.org:TW/094CYCU5489047 |
| Date | January 2006 |
| Creators | Shih-Hang Huang, 黃士航 |
| Contributors | Ruei-Yih Tsai, 蔡瑞益 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 91 |
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