周賢福Chou, Shyan-Fu臺灣大學:機械工程學研究所吳象天Wu, Hsiang-TienHsiang-TienWu2010-06-302018-06-282010-06-302018-06-282009U0001-1806200910405500http://ntur.lib.ntu.edu.tw//handle/246246/187120本論文的研究主題，在針對東芝公司(Toshiba)以上市之筆記型電腦Qosmio-F50，利用數值模擬軟體為散熱系統配置作先行規劃分析，再以實際含發熱源之模具，實際測試驗證數值模擬結果的正確性，最後將設計導入實機。行數值模擬時，分別針對單雙出風口設計，依序完成環境條件設定、模組建立及其參數設定、網格設定、求解設定，再依各種筆電關鍵耗能進行模擬，而後求得可能之散熱方案；在進行實測驗證時，首先設定實驗條件，再完成實驗器具架設，最後分別針對單雙出風口設計，在各種筆電關鍵耗能狀況下進行實驗量測。 經由上述數值模擬與實測驗證可知，雖然不論單雙出風口皆可達到設計要求，但單出風口設計顯然能提供較高散熱效能；加上CPU散熱模組熱管走向影響風扇擺放，導致雙出風口設計必然破壞原風扇流場，則單出風口勢必成為Qosmio-F50正確的設計方案。The main idea of this work is to find a thermal solution for Qosmio-F50 laptop computer of Toshiba company by performing numerical simulation first, and then, by verifying the result of simulation by molding tool equipped with heater. The developed design has been implemented into the product to prove the performance. During the process of simulation, several things have been set up for the one-outlet and two-outlet designs individually, including the environmental conditions, the model setting and necessary parameters, the grid generation, and the solving procedure. Several simulations of critical modes of operation have been analyzed to find the simulation results. In the process of verification, two steps have to be accomplished, including the environmental conditions setting and the experimental tool setting. Under the one-outlet and two-outlet designs, several tests have been carried out for various critical modes of operation of the laptop computer to check with analytical results. From the results of analytical simulation and experimental verification, either one-outlet or two-outlet design will satisfy the thermal demand. However, the efficiency of one-outlet design is obviously better. In addition, because of the positioning problem of the heat pipe of CPU thermal module, two-outlet design will destroy the flow field inside the fan on one hand. Obviously, one-outlet design is a much better choice for cooling Qosmio-F50 laptop computer.口試委員會審定書……………………………………………………i謝……………………………………………………………………ii文摘要………………………………………………………………iii文摘要………………………………………………………………iv目錄…………………………………………………………………viii目錄…………………………………………………………………x號說明…………………………………………………………… xiii一章 序論……………………………………………………………1-1 前言……………………………………………………………1-2 研究背景與原理………………………………………………2-3 文獻回顧………………………………………………………4二章 研究理論基礎…………………………………………………6 2-1 筆記型電腦之熱傳路徑………………………………………6 2-2 筆記型電腦熱交換器-散熱模組………………………………7 2-3 筆記型電腦熱交換器-風扇……………………………………9 2-4 熱阻與最大解熱定義…………………………………………9 2-5 統御方程式……………………………………………………10 2-6 數值模擬原理…………………………………………………12 2-7 數值模擬軟體簡介……………………………………………13三章 實驗步驟……………………………………………………14 3-1 數值模擬之環境條件設定……………………………………14 3-2 數值模擬之模組建立及其參數設定…………………………15 3-3 數值模擬之網格設定…………………………………………17 3-4 數值模擬之求解設定…………………………………………18 3-5 實測驗證之實驗條件…………………………………………18 3-6 實測驗證之實驗架設…………………………………………18 3-7 實測驗證之實驗量測…………………………………………19四章 實驗結果與分析………………………………………………21 4-1 數值模擬單出風口設計之結果與分析………………………21 4-2 數值模擬雙出風口設計之結果與分析………………………22 4-3 實測驗證單出風口設計之結果與分析………………………23 4-4 實測驗證雙出風口設計之結果與分析………………………25 4-5 單雙出風口設計解熱能力之綜合分析………………………26 4-6 數值模擬中央微處理器與北橋之溫度關係…………………27 4-7 數值模擬熱管工作長度與散熱效能之關係…………………28 4-8 數值模擬散熱鰭片間距與散熱效能之關係…………………28 4-9 數值模擬主入風口開孔率與散熱效能之關係………………29五章 結論與建議……………………………………………………30 5-1 結論……………………………………………………………30 5-2 建議……………………………………………………………312992188 bytesapplication/pdfen-US數值模擬實測驗證單出風口設計雙出風口設計numerical simulationexperimental verificationone-outlet designtwo-outlet designthesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/187120/1/ntu-98-R97522118-1.pdf