碩士 / 國立中央大學 / 機械工程學系在職專班 / 103 / In order to solve the thermal issues of servers arising from a large amount of network access, the present effort seeks to develop a liquid cooling CPU heat sink for 1U server. First, numerical analysis was used to find out the best fin space, and then the design of cross-cut pin fin was introduced. As a result, a proper number of the segmented sections was found to enhance the disturbance of flow and to avoid the frictions caused by too many segmented sections. In order to get better thermal performance under larger fin space and less segmented sections to save the cost, staggered fin was proposed to realize the aim. The results showed that with the fin space of 2.5mm and 4 segmented sections, the performance of staggered fin is better than the straight fin with the space of only 0.5mm.
To validate the simulation results, a staggered fin base and a straight fin base were fabricated via CNC machining process. Their thermal performances were measured respectively and then compared with numerical results. The experimental results show a coordinate tendency with numerical simulations and confirmed that the staggered one get better performance. Finally, a review on the limitations and cost of different manufacturing processes was conducted to find the best cost-effective mass production design.
| Identifer | oai:union.ndltd.org:TW/103NCU05489092 |
| Date | January 2015 |
| Creators | Min-Lang Chen, 陳敏郎 |
| Contributors | Shu-san Hsiau, 蕭述三 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 116 |
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