臺灣博碩士論文加值系統

本文之主要研究目的為找出用於筆記型電腦散熱系統之微熱管的最佳填充量，此燒結式微熱管內部之毛細結構是採用燒結銅粉來形成結構層。本文針對熱管的各種工作流體填充量進行研究。本實驗填充量總共分為六組，分別為填充量1.3g、1.4g、1.5g、1.6g、1.7g、1.8g。性能測試方法是依據工研院能環所簡國祥博士所提出的「熱管性能檢測方式之介紹」進行測試。
性能測試方面包括熱響應、最大熱傳量以及熱阻值的評估。由熱響應測試結果中顯示，本研究所製作之燒結式微熱管填充水量1.3g、1.4g、1.5g、1.6g、1.7g、1.8g，均可以迅速地傳導熱量並達到穩態，而且穩態之溫度相當接近於加熱端之水的溫度。
由最大熱傳量測試實驗結果中顯示，當填充水量為1.3g與1.4g時，因為填充量太少，所以當輸入熱量持續增加時，加熱端產生局部乾凅而降低熱傳能力。當填充量為1.5g時，其最大熱傳量明顯的比當填充量為1.3g與1.4g時要好。當填充水量為1.6g時，所解之功率可高達65W，此填充量為實驗之最佳填充含水量。當填充量為1.7g與1.8g時，由於填充量太多，過多的水量反而會在冷凝端形成阻塞，導致冷凝端熱阻的增加，並影響其傳熱效率。
至於熱阻性能測試方面：當熱管工作流體填充水量為1.3g、1.4g時，由於填充量太少導致熱管無法正常操作，相對地熱阻值也比較大。當填充水量為1.5g時，熱傳效率最高。當填充水量為1.6g時，熱阻值相當的穩定且熱阻值較小。當填充量1.7g與1.8g時，由於填充量太多導致於過多的水量影響熱傳效果，故其熱阻值也比較大。
由本文所作之性能測試結果發現，當燒結式微熱管填充水量為1.6g時，其熱響應測試、最大熱傳量測試以及熱阻值測試等結果顯示均為最佳性能，故本實驗之最佳填充量為1.6g。本文所得結果可以提供相關業界的參考。

The purpose of this text was to find an optimum capacity of fill water amount condition for micro heat pipe of notebook. The inner capillary construction of sintered heat pipe was composed by sintered copper powder. The parameter of this study is a various fill water. The fill amount in this experiment was divided by six set, such as 1.3g,1.4g,1.5g,1.6 g,1.7g,1.8g. The method of test performance was according to Dr. chien’s “the introduction of heat pipe property detection square type”. The test aspect of performance were included by heat response, maximum heat transfer, and thermal resistance evaluation.
Form the results of heat response in a various fill water, it was shown that all supplied heat pipe in a various fluid fill as 1.3g,1.4g,1.5g,1.6 g,1.7g,1.8g can rapidly transfer heat quantity and reach steady state. The steady state temperature is nearly approach to the fill water temperature of heat source.
From the results of maximum heat transfer in a various fill water, it was shown that the poor heat transfer when the fill water are 1.3g and 1.4g due to the little fill amount, and better heat transfer than 1.3g and 1.4g when the fill water is 1.5g. The power solution can reach to 65W when the fill water is 1.6g. The heat transfer decreased when the fill water are 1.7g and 1.8g, because the more fill water for condenser end form the blockage effect.
Form the results of thermal resistance test, it was shown that the thermal resistance is increased when the fill water are 1.3g and 1.4g due to the little fill water. Comparing with 1.3g and 1.4g, the thermal resistance is decreased when the fill water are 1.5g and 1.6g. Comparing with 1.5g and 1.6g, the thermal resistance of fill water 1.7g and 1.8g are increased due to more fill water.
In summary, from the results of performance test of sintered miniature heat pipe, we can find the optimum fill water of sintered miniature heat pipe in this paper is 1.6g. This results can be provided the reference for relative research and industry.

誌 謝 i
摘 要 ii
Abstract iv
目 錄 v
表 目 錄 viii
圖 目 錄 x
符 號 說 明 xiv
第一章 緒論
1.1 前言 1
1.2 文獻回顧 2
1.3 研究目的與動機 7
1.4 研究方法 8
第二章 熱管技術理論
2.1 熱管的發展 9
2.2 熱管的構造 9
2.3 熱管的作動原理 11
2.4 熱管的優缺點 12
2.5 熱管操作的熱傳界限 13
第三章 熱管的設計與製造
3.1 熱管的設計 17
3.1.1 外層容器的選擇 17
3.1.2 沿管內壁毛細結構的選擇 18
3.1.3 工作流體的選擇 18
3.2 熱管的製造 21
第四章 實驗設備與實驗步驟
4.1 實驗設備 25
4.1.1 製造設備 25
4.1.2 測試設備 28
4.2 熱管性能測試步驟 31
4.2.1 熱管性能測試簡介 31
4.2.2 熱管之熱響應測試步驟 32
4.2.3 熱管之最大熱傳量測試步驟 32
第五章 結果與討論
5.1 熱管之熱響應測試結果 34
5.2 熱管之最大熱傳量測試結果 35
5.3 熱管之熱阻值計算結果 37
第六章 結論與建議
6.1 結論 40
6.2 建議 41
參 考 文 獻 42
作 者 簡 介 96

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