閉迴路震盪式熱管雖具有非常好的散熱效果，但熱傳原理複雜。為了更進一步了解其性質，本實驗以外徑6mm、內徑3 mm 之玻璃管製作9 個折彎總長1980mm 之震盪式熱管，為了使震盪式熱管更容易達到循環，故製作水冷系統並控制溫度在25℃，工作流體使用甲醇。在不同加熱功率 30、60、90、120、150、180W 參數下紀錄溫度和評估熱阻值。利用數位攝影機拍攝影片，分析記錄震盪式熱管內流體作動情形。管內流動模式可分為順轉、逆轉或震盪，由實驗發現，管內流動方向改變與管之溫度有明顯的關係。實驗結果顯示在輸入功率為180W 時，有最低的熱阻值為0.217(K/W)。

A Closed Loop Pulsating Heat Pipe (CLPHP) is a complex heat transfer device with a strong thermo-hydrodynamic coupling governing its thermal performance. This research utilized 6 mm outer diameter and 3 mm inner diameter glass tubes to manufacture 9 turns closed loop Pulsating Heat Pipe(PHP) with a total length of 1980mm. For achieving the loop circulation easily, a water cooling system kept at 25 ℃ was used as the condenser, and used methanol as working fluid. Experiment was conducted to measure temperature difference and to evaluate the thermal resistance under at a series change of power inputs (30W, 60W, 90W, 120W, 150W, 180W). A digital video camera was used to record the working situation of the working fluid inside the channel. The flow pattern can be categorized into clockwise, counter-clockwise and transition status. The results showed the flow direction of PHP was changed with the temperature difference of tubes. The lowest resistance is 0.217(K/W) at an input power of 180W in this study.

目錄
致謝	I
中文摘要	II
英文摘要	III
目錄	IV
圖目錄	VI
表目錄	VIII
符號說明	IX
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	10
第二章 理論基礎	11
2-1 震盪式熱管的介紹	11
2-1-1 震盪式熱管工作原理	11
2-1-2 震盪式熱管基本型態	13
2-1-3 震盪式熱管設計參數	13
2-2 管內的二相流型態	17
2-3毛細塊狀流特性	20
2-4熱通量與PHP運作的關係	21
第三章 震盪式熱管之製作及實驗架設步驟	23
3-1震盪式熱管之製作	23
3-2熱電偶線位置	26
3-3實驗周邊設備	27
3-4實驗步驟	32
第四章 實驗分析與結果討論	33
4-1 震盪式熱管之汽泡冷凝與結合分析	33
4-2 震盪式熱管溫度擷取點分析	34
4-3 震盪式熱管流動模式分析	38
4-4 震盪式熱管熱阻值分析	42
第五章 總結與未來建議	43
5-1總結	43
5-2未來建議	43

參考文獻	44

 
圖目錄
圖1-1  迴路式熱管示意圖[2]	2
圖1-2  KENZAN FIN 震盪式熱管概念開發產品[2]	3
圖1-3  震盪式熱管示意圖[2]	4
圖1-4  Wong震盪式熱管模組化示意圖[3]	4
圖1-5  Closed Loop PHP(玻璃)流場可視化示意圖[3]	5
圖1-6  Closed Loop PHP實驗模組示意圖[4]	5
圖1-7  震盪式熱管設計之邊界關係[5]	6
圖1-8  震盪式熱管趨勢圖[6]	6
圖1-9  PHP尺寸及可視化PHP之實驗架設[8]	7
圖1-10 不同方向之彎管處汽泡破裂情形(a)逆時針(b)順時針[8]	7
圖1-11 管壁粗糙度與汽泡結構圖[9]	8
圖1-12 震盪式熱管示意圖[11]	9
圖1-13 壓力與流體方向關係圖[11]	9
圖1-14 為新型式的震盪式熱管散熱模組[12]	10
圖2-1  PHP作動示意圖	12
圖2-2  三種PHP迴路的形式	13
圖2-3  震盪式熱管管徑2mm與1mm最大熱傳量的比較[13]	15
圖2-4  垂直上生管中的流場型態[14]	18
圖2-5  垂直管中汽液二相流流場型態[14]	19
圖2-6  汽水混合物通過U型管與倒U型管時的流場型態[14]	19
圖2-7  毛細塊狀流壓降分佈[15]	21
圖2-8  輸入熱通量與PHP 熱阻關係圖 [16]	22
圖2-9  輸入熱通量與PHP 運作關係圖 [17]	22
圖3-1  震盪式熱管詳細尺寸	24
圖3-2  冷凝端水冷示意圖	25
圖3-3  熱電偶線位置	26
圖3-4  溫度校正器LW-9049	27
圖3-5  真空幫浦GLD-201B	28
圖3-6  真空計	28
圖3-7  電源供應器LW-3650及LW-3650_R1	29
圖3-8  溫度擷取器 TempScan-1100	29
圖3-9  DV攝影機	29
圖3-10 恆溫水槽	30
圖3-11 水的三相圖	30
圖3-12 流量計	31
圖4-1  汽泡凝結圖	33
圖4-2  汽泡結合圖	34
圖4-4  熱電偶T1~T11位置分布圖	35
圖4-5  溫度趨勢圖	35
圖4-6  溫度趨勢圖	36
圖4-7  溫度趨勢圖	36
圖4-8  溫度趨勢圖	37
圖4-9  溫度趨勢圖	37
圖4-10 甲醇PHP各點平均溫度	38
圖4-11 震盪式熱管作動示意圖	40
圖4-12  25W 溫度趨勢圖	41
圖4-13  120W 溫度趨勢圖	41
圖4-14  150W 溫度趨勢圖	42
圖4-15  180W 溫度趨勢圖	42
圖4-16 甲醇PHP各加熱功率下熱阻值	43
 
表目錄
表2-1 不同工作流體理想範圍	15
表4-1甲醇PHP各點平均溫度	38
表4-2 甲醇PHP各加熱功率下熱阻值	43

[1]	H. Akachi, US Patent, Patent Number, 5490558 (1993).
[2]	H. Akachi, F. Polasek and P. Stulc, “Pulsating Heat Pipes,” Proc. 5th International Heat Pipe Symposium, Melbourne, Australia, pp. 208-217 (1996).
[3]	T. N. Wong, B. Y. Tong, S. M. Lim and K. T. Ooi, “Theoretical Modeling of Pulsating Heat Pipe,” Proc. 11th International Heat Pipe Conference, Tokyo, Japan, pp. 159-163 (1999).
[4]	S. Khandekar, N. Dollinger and M. Groll, “Understanding Operational Regimes of Closed Loop Pulsating Heat Pipes: An Experimental Study,” Applied Thermal Engineering, Elsevier Science, Vol.23, pp. 707-719 (2003).
[5]	S. Khandekar and M. Groll, “On The Definition of Pulsating Heat Pipes: An Overview,” Proc. 5th Minsk International Seminar (Heat Pipe, Heat Pumps and Refrigerators), Minsk, Belarus (2003).
[6]	Sameer Khandekar , Manfred GrollP, “An insight into thermo-hydrodynamic coupling in closed loop pulsating heat pipes” Proc. International Journal of Thermal Sciences 43, pp. 13–20 (2004). 
[7]	X. M. Zhang, J. L. Xu, and Z. Q. Zhou, “Experimental study of a pulsating heat pipe using FC-72, ethanol, and water as working fluids,” Experimental Heat Transfer, Vol.17, pp 47-67 (2004).
[8]	J. L. Xu, Y. X. Li, and T. N. Wong, “High speed flow visualization of a closed pulsating heat pipe,” Heat and Mass Transfer, Vol.48, pp.3338-3351 (2005)
[9]	W. Qu and H. B. Ma, “Theoretical analysis of startup of a pulsating heat pipe,” International Journal of Heat and Mass Transfer, Vol.50, pp. 2309-2316 (2007).
[10]	L. Su and H. Zhang, “Steady state circulation flow analysis of loop pulsating heat pipe,” Journal of Chemical Industry and Engineering(China),Vol.58, No.8 (2007)
[11]	S. Khandekar and M. Groll, “Roadmap to Realistic Modeling of Closed Loop Pulsating Heat Pipes,” Proc. 9th International Heat Pipe Symposium, Kuala Lumpur, Malaysia, pp. 26-38 (2008).
[12]	Y. F. Maydanik, V. I. ,Dmitrin and V.G.. Pastukhov, “Compact cooler for electronics on the basis of a pulsating heat pipe,” Applied Thermal Engineering, Vol.29, pp.3511-3517 (2009).
[13]	S. Khandekar, M. Groll , “Pulsating heat pipes: Study on a Two-Phase Loop,”
13th International Conference on Thermal Engineering and Thermogrammetry,
Budapest, Hungary, pp.18-20 June, 2003.
[14]	R. T. Dobson, “An open oscillatory heat pipe water pump,” Applied Thermal Engineering, Vol.23, pp. 603-621 (2005).
[15]	P. Charoensawan, S. Khandekar, M. Groll and P. Terdtoon, “Closed loop pulsating heat pipes Part A: parametric experimental investigations,” Applied Thermal Engineering, Vol.23, pp. 2009-2020 (2003).
[16]	林宗虎等編著，“汽液兩相流和沸騰傳熱”，西安交通大學出版社，PP.14-35，2003。
[17]	Wallis,G,“One dimensional Two Phase Flow,”McGraw Hill,1969
[18]	S. Khandekar and M. Groll, “Roadmap to Realistic Modeling of Closed Loop Pulsating Heat Pipes,” Proc. 9th International Heat Pipe Symposium, Kuala Lumpur, Malaysia, pp. 26-38 (2008).
[19]	S. Khandekar and M. Groll, “On The Definition of Pulsating Heat Pipes: An Overview,” Proc. 5th Minsk International Seminar (Heat Pipe, Heat Pumps and Refrigerators), Minsk, Belarus (2003)
[20]	林玉興，「震盪式熱管之製造與分析」，博士論文，淡江大學機械與機電工程研究所，民國九十七年。
[21]	陳慧倫，「銀奈米流體應用於震盪式熱管效能之研究」，碩士論文，淡江大學機械與機電工程研究所，民國九十五年。
[22]	詹前軒，「封閉迴路式震盪式熱管之穩態循環流研究」，碩士論文，淡江大學機械與機電工程研究所，民國九十九年。