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研究生:游育豪
研究生(外文):Yu-Hao You
論文名稱:LED散熱板溫度場分析
論文名稱(外文):Temperature field analysis of LED Cooling plate
指導教授:徐澤志徐澤志引用關係
指導教授(外文):Tze-Chi Hsu
學位類別:碩士
校院名稱:元智大學
系所名稱:機械工程學系
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2011
畢業學年度:99
語文別:中文
論文頁數:67
中文關鍵詞:發光二極體(LED);散熱板;多孔性;熱管理
外文關鍵詞:Light Emiting Doidecooling plate,porousthermal management
相關次數:
  • 被引用被引用:3
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隨著LED元件效能的需求增加以及封裝尺寸越來越小,所產生的熱能也就越來越高,為了增加散熱的速度以及效率,解決方法大部分都以增加散熱體積選用良好的散熱材質為主要方向,目前鋁製散熱板被廣泛應用,因鋁合金具有良好的散熱效果、容易加工、成本便宜因此廣泛被使用,成為各種電子元件以及LED的主要散熱材料。
本研究利用快速以及節省成本的套裝分析軟體FLUENT以及風洞試驗機進行簡易的溫度場分析,主要以鰭片穿孔增加空氣對流的面積量,進而達到改善鰭片散熱與減輕鰭片重量等效果。
最後將實驗值與分析結果比較是否吻合,再進行鰭片設計更改以助於鰭片散熱效能有所增加。對於實驗發現適度的穿孔,可以改善熱阻,但過度穿孔會導致金屬熱傳受到破壞,以至於造成反向效果,也是探討的方向。


As the demand of performance LED components increased and package size decreased, the heat generated more than before. The most popular ways to accelerate the cooling procedure are increase the contact area for cooling and choose the suitable materials. Aluminum heat plate is widely used for the cooling procedure, because aluminum possesses good heat dissipation, easy processed and low cost.
In this study, we implemented experiment by using FLUENT, compare the results with results of temperature field by using wind tunnel testing machine. The proposed method is using the perforated fin to increase the contact area to improve the cooling speed and fin weight. We compared settings with experimental analysis, then designed suitable fin to increase cooling efficiency.
The experimental results showed use perforated fin will decrease thermal resistance but there will be bad effect for over-perforate because of destroying heat conducting of mental.


目錄
摘要 i
Abstract ii
誌謝 iii
目錄 iv
圖目錄 v
表目錄 viii
第一章 緒論 1
1.1 前言 1
1.2 文獻回顧 2
1.3 研究目的 7
第二章 理論分析 9
2.1 熱阻理論 9
2.2 壓降理論 10
第三章 實驗模擬設備與步驟 16
3.1 實驗設備 16
3.2 實驗步驟 18
3.3 實驗模型材質特性 19
3.4 軟體介紹 20
第四章 模擬與實驗結果討論 32
4.1板型鰭片實驗模擬比較 32
4.2穿孔鰭片實驗模擬比較 33
4.3板型與穿孔鰭片模擬比較 34
第五章 結論 64



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[2]Chia-Ching Chuang,“A study on the patent analysis and numerically thermal simulation of high power LED”,Fortune Institute of Technology,2009.
[3] 孫明宗,“高亮度LED吸頂燈具之散熱研究”長庚大學碩士論文,民國九十七年.
[4] 林唯耕,“高亮度LED數值模擬分析探討”清華大學碩士論文,民國九十八年.
[5]Lee,S , “Optimum Design and Selection of Heat Sinks”, IEEE Transactions on Components ,Packing, and Manufacturing‧Technology-Pat A ‧December,1995‧
[6] Barrett,A.V.,and Obinelo,I.F. ,“Characterization of Longitudinal Fin Heat Sink Thermal Performance and Flow Bypass Effects Through CFD Methods ”, Eleventh IEEE Semi-Therm,1997‧
[7]楊玉姿,“多孔散熱片流場與熱傳之數值模擬”國立成功大學碩士論文,民國九十一年.
[8] Ing-Youn Chen,“Influence of air flow arrangement on performance of heat sink with rectangular plate fin and square pin fin array”,2005 .
[9] Bayram Sahin a, Alparslan Demir,“Performance analysis of a heat exchanger having perforated square fins”, Turkeyb Akademi Engineering Ltd., Erzurum, Turkey Received 6 July ,2006.
[10]Yur-Tsai Lin,Ching-Ming Chiang,“Experimental Investigation of Thermal-Hydraulic Performance of the Compact Stack Fin Heat Sinks for Forced Convection”,Yuan-Ze University,2006.
[11] Yur-Tsai Lin,Wu-Lun Hsieh,“Three-dimensional Numerical Analysis of Plate-Fin Heat Exchangers”Yuan-Ze University,2006.
[12] Yur-Tsai Lin,Jhin-hao Jhong,“Experimental Investion of Pressure and Heat Transfer Performance of the Stack Heat Sinks under Forced Convection”Yuan-Ze University,2007.
[13] Hung-Yi Li,Kuan-Ying Chen,“Thermal performance of plate-fin heat sinks under confined impinging jet conditions ”,2007.
[14]趙隆山,“燒結式均溫板之製程與性能分析”國立成功大學碩士論文,民國九十八年.
[15] C.Antonio,“Heat Transfer Enhancement of Air Flowing Across Grooved Channels:Joint Effects of Channel Height and Groove Depth”The University of Vermont, Burlington,2008.
[16] Mohammad A. Elyyan,Danesh K. Tafti,“A novel split-dimple interrupted fin configuration for heat transfer augmentation”Virginia Polytechnic Institute and State University,2008.
[17] M.R. Shaeri, M. Yaghoubi , K. Jafarpur,“Heat transfer analysis of lateral perforated fin heat sinks”, Shiraz University,2008.
[18] Ing Youn Chen,“The experiments and analysis for the performance of compact fins by infrared rays camera and numerical simulation”National Yunlin University,2009.
[19] M.R. Shaeri, M. Yaghoubi ,“Thermal enhancement from heat sinks by using perforated fins”, Shiraz University, Shiraz 71348-51154, Iran, 18 January 2009‧
[20]Rober E. Simons,“Estimating Parallel Plate-Fin Heat Sink Pressure”ElectronicsCooling, Vol. 9, No. 1, pp. 8-9, 2003.


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