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系統識別號 U0002-2608201310353000
中文論文名稱 封閉迴路式震盪熱管之單向穩態循環流研究
英文論文名稱 Study on Single Direction Circulation Flow in Closed-Loop Pulsating Heat Pipe
校院名稱 淡江大學
系所名稱(中) 機械與機電工程學系碩士班
系所名稱(英) Department of Mechanical and Electro-Mechanical Engineering
學年度 101
學期 2
出版年 102
研究生中文姓名 蕭百鈞
研究生英文姓名 Pai-Chun Hsiao
學號 601370108
學位類別 碩士
語文別 中文
口試日期 2013-07-11
論文頁數 67頁
口試委員 指導教授-康尚文
委員-林玉興
委員-呂宗行
中文關鍵字 震盪式熱管  循環流  循環方向 
英文關鍵字 lsating Heat Pipe  Circulation Flow  Circulation Direction 
學科別分類 學科別應用科學機械工程
中文摘要 本研究是利用外徑6mm、內徑3 mm 之玻璃管製作的9 個折彎
數、總長1980mm 之震盪式熱管。為了使震盪式熱管達到循環狀態,
本實驗在蒸發端採用單邊加熱及雙邊加熱的方式進行實驗,並使用水
冷系統為冷凝器將溫度控制在25°C。在兩種不同的加熱方式下、及
不同輸入功率(20W、60W、100W、140W)下,計算出熱阻值進行比
較。並利用數位攝影機拍攝影片,觀測乙醇在震盪式熱管中流動的情
形。
觀察實驗結果可以發現,當加熱瓦數到達100W 時,震盪式熱管
開始出現循環流,雙邊加熱在循環流中會出現局部的逆流,甚至是發
生震盪進而停止循環的情況,而單邊加熱可以在較低的輸入功率下產
生穩定的單方向循環流,使得熱阻值降低。
英文摘要 This research utilized 6 mm outer diameter and 3 mm inner diameter glass tubes to
manufacture 9 turns Closed-Loop Pulsating Heat Pipe (CLPHP) with a total length of
1980mm. For achieving the loop circulation, heaters were installed unilaterally and bilaterally
in the evaporator respectively, and a water cooling system kept at 25°C was used as the
condenser. The experiment was conducted under both heating methods to compare the
thermal resistance at an input power of 20W, 60W, 100W and 140W. Through a digital video
camera, the visualization experiment was carried out to observe the ethanol fluid flow in the
PHP.
From the observation, when the input power is greater than 100W, circulation in the
working fluid occurs. Randomness direction of circulation and local oscillation can be found
in the bilateral heating. Unilateral heating may allow the consistent direction circulation
happened at lower input power to perform lower thermal resistance.
論文目次 誌謝 .............................................................................................. I
中文摘要 ............................................................................................. II
英文摘要 ............................................................................................ III
目錄 ............................................................................................IV
圖目錄 ............................................................................................. V
表目錄 .......................................................................................... VII
符號說明 ......................................................................................... VIII
第一章 緒論 ........................................................................................... 1
1-1 研究動機 ......................................................................... 1
1-2 文獻回顧 ......................................................................... 2
1-3 研究目的 ....................................................................... 18
第二章 理論基礎 ................................................................................. 20
2-1 震盪式熱管的介紹 ........................................................ 20
2-2 震盪式熱管理論簡介 .................................................... 30
2-3 PHP 熱傳機制 ............................................................... 35
2-4 熱通量與PHP 運作的關係 ........................................... 36
第三章 震盪式熱管之製作 .................................................................. 38
3-1 PHP 設計 ....................................................................... 39
3-2 蒸發端設計.................................................................... 39
3-3 冷凝端設計.................................................................... 40
第四章 實驗架設及步驟 ...................................................................... 42
4-1 真空處理 ....................................................................... 42
4-2 實驗設備架設 ................................................................ 44
4-3 實驗參數 ....................................................................... 50
4-4 實驗步驟 ....................................................................... 50
第五章 實驗分析與結果討論 .............................................................. 52
5-1 震盪式熱管性能表現 .................................................... 52
5-2 震盪式熱管循環觀察 .................................................... 57
第六章 總結與未來建議 ...................................................................... 63
6-1 總結 ............................................................................... 63
6-2 未來建議 ....................................................................... 64
參考文獻 ............................................................................................ 65

圖目錄
圖1-1震盪式熱管示意圖 ......................................................................... 2
圖1-2迴路式熱管示意圖[1] .................................................................... 3
圖1-3多迴圈震盪式熱管示意圖[2] ........................................................ 3
圖1-4 KENZAN FIN 震盪式熱管概念開發產品[2] .............................. 4
圖1-5 Closed Loop PHP流場可視化示意圖[4] ...................................... 5
圖1-6震盪式熱管模組化示意圖[4] ........................................................ 6
圖1-7可視化PHP示意圖[5] ................................................................... 7
圖1-8 震盪式熱管穩態循環流[6] ........................................................... 8
圖1-9 震盪式熱管填充率和最大加熱量之關係[7] ............................... 9
圖1-10 工作流體和內徑的影響[8] ....................................................... 10
圖1-11 Closed Loop PHP實驗模組示意圖[9] ...................................... 11
圖1-12 震盪式熱管設計之邊界關係[9] ............................................... 11
圖1-13 單迴路震盪式熱管[11] ............................................................. 13
圖1-14 PHP尺寸及可視化PHP之實驗架設[12] ................................ 14
圖1-15不同方向之彎管處汽泡破裂情形[12] ...................................... 14
圖1-16管壁粗糙度與汽泡結構圖[13] .................................................. 15
圖1-17 單迴路震盪式熱管與熱阻結構示意圖[15] ............................. 16
圖1-18 震盪式熱管示意圖[16] ............................................................. 17
圖1-19壓力與流體方向關係圖[16] ...................................................... 17
圖1-20 震盪式熱管實體圖[17] ............................................................. 18
圖2-1 PHP作動示意圖 ........................................................................... 21
圖2-2 三種PHP迴路的形式 ................................................................. 22
圖2-3 不同工作流體生成汽泡上升參數實驗結果[2] ......................... 24
圖2-4 PHP管內徑壓力分布圖[10] ........................................................ 26
圖2-5垂直上升管中的流場型態[20] .................................................... 28
圖2-6垂直下降管中汽液二相流流場型態[20] .................................... 29
圖2-7汽液柱通過U型管與倒U型管時的流場型態[20] .................. 30
圖2-8毛細塊狀流壓降分佈[21] ............................................................ 31
圖2-9蒸發端及冷凝端之汽泡分佈型態[22] ........................................ 32
圖2-10絕熱段汽泡分佈型態[22] .......................................................... 34
圖2-11動態接觸角影響毛細阻抗示意圖[18] ...................................... 35
圖2-12 單迴圈閉路型PHP熱力循環示意圖[23] ................................ 36
圖2-13輸入熱通量與PHP 熱阻關係圖[9] .......................................... 37
圖2-14輸入熱通量與PHP 運作關係圖[23] ........................................ 37
圖3-1單邊加熱的震盪式熱管 ............................................................... 39
圖3-2 雙邊加熱的震盪式熱管 .............................................................. 40
圖3-3水冷套示意圖 ............................................................................... 41
圖4-1水的三相圖 ................................................................................... 42
圖4-2 真空幫浦GLD-201B ................................................................... 45
圖4-3 真空計 .......................................................................................... 46
圖4-4 電源供應器GPR-3010HD .......................................................... 46
圖4-5訊號擷取器Imc Spartan-L ........................................................... 47
圖4-6 DV攝影機 .................................................................................... 47
圖4-7恆溫水槽 ....................................................................................... 48
圖4-8 流量計 .......................................................................................... 48
圖4-9 熱電偶線配置位置 ...................................................................... 49
圖5-1 總體溫度分佈趨勢 ...................................................................... 52
圖5-2 冷凝端溫度分佈趨勢 .................................................................. 53
圖5-3低瓦數溫度分佈趨勢 ................................................................... 54
圖5-4 20W下的工作流體 ...................................................................... 54
圖5-5 60W下的工作流體 ...................................................................... 55
圖5-6 高瓦數溫度分佈趨勢 .................................................................. 56
圖5-7 不同加熱方式之熱阻值比較 ...................................................... 57
圖5-8 蒸發端產生小汽泡 ...................................................................... 58
圖5-9 單邊加熱T1及T10的溫度比較圖 ........................................... 59
圖5-10 100W循環流 .............................................................................. 59
圖5-11 140W循環流 .............................................................................. 60
圖5-12 100W時非循環流 ...................................................................... 60
圖 5-13 雙邊加熱T1及T10的溫度比較圖 ........................................ 61
圖5-14 140W下T1及T10的溫度趨勢圖 ........................................... 62
圖5-15 汽液柱分佈不均 ........................................................................ 62

表目錄
表2-1 不同工作流體理想範圍 .............................................................. 24
表4-1 實驗參數 ...................................................................................... 50
表5-1 不同瓦特數下的熱阻值 (K/W) ................................................. 57
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論文,淡江大學機械與機電工程研究所,民國一百零一年。
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