平板震盪型熱管之可視化觀測及性能研究

以作者查詢圖書館館藏

、以作者查詢臺灣博碩士

、以作者查詢全國書目

、勘誤回報

、線上人數：21

、訪客IP：13.59.112.169

姓名

彭賢凱(Hsien-Kai Peng) 查詢紙本館藏

畢業系所

機械工程學系

論文名稱

平板震盪型熱管之可視化觀測及性能研究
(The Visualization of Flat Plate Pulsating Heat Pipe)

相關論文

★ 冷卻水溫度與冰水溫度對離心式冰水主機性能影響之實驗分析	★ 不同結構與幾何形狀對熱管性能之影響
★ HFC-134a與HFO-1234yf 在板式熱交換器中流動沸騰之性能比較	★ 油冷卻器熱傳與壓降性能實驗分析
★ 水對冷媒R22在板式熱交換器內之性能測試分析	★ 水對水在不同板片型式之板式熱交換器性能測試分析與比較
★ 油冷卻器性能測試分析與比較	★ 空調機用水簾式暨光觸媒空氣清淨機研製及測試
★ 水對空氣在板式熱交換器之性能測試分析	★ 板片入出口及入出口管路壓降估計對板式熱交換器壓降性能影響分析
★ 微熱交換器之設計與性能測試	★ 板式熱交換器之入出口壓降實驗分析
★ 液體冷卻系統中之微熱交換器性能分析與改良	★ 直接模擬蒙地卡羅法於高低速流場之模擬
★ 液體微熱交換器之熱傳增強研究	★ 冷媒R22在板式熱交換器內之凝結熱傳及壓降性能實驗分析

檔案

[Endnote RIS 格式]

[Bibtex 格式]

[相關文章]

[文章引用]

[完整記錄]

[館藏目錄]

[檢視]

[下載]

本電子論文使用權限為同意立即開放。
已達開放權限電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。

摘要(中)

本研究將震盪型熱管的流道利用濕蝕刻加工於銅板上，並設計兩種不同迴路型式的流道，在固定填充率50%的條件下，測試不同傾斜角度0°~90°對熱傳性能的影響，並利用高速攝影機觀測流道內汽泡震盪的情形，希望藉由可視化觀測得知不同操作條件對平板震盪型熱管的影響。
在可視化觀測及熱阻分析下，可得單一迴路震盪型熱管最佳操作角度為90°，且傾斜角度在 30°~90°時皆可產生震盪現象。其熱阻隨傾斜角度加大而降低，最大降幅發生在傾斜角度90°，加熱量45W時，熱阻較流體未發生震盪時降低44%。由於雙向迴路的流道設計，隨著加熱量增加，流體開始震盪，下半迴路遭蒸氣排開的區域也增加，熱阻僅微幅下降。實驗證實震盪型熱管內流體震盪，能有效增加熱傳，但在操作角度上仍有其極限。

摘要(英)

This article is trying to etching manufactured pulsating heat pipes on copper plate, and design two kind of loop type channel, In this article, experiment three filling ratio 50 %, and different incline, which were 0°、30°、60° and 90°, also record vapor motion in the channel by high speed camera，and want to know different operate conditions effect to flat plate pulsating heat pipes by visualization observe.
By visualization observe and thermal resistance analysis, it is found out that, with a filling ratio 50 % and incline angle 90° have optimal performance yields a thermal resistance, and the phenomenon of oscillating can observe from30°~90°, when heating rate at 45W, thermal resistance decrease 44% than heating rate at 15W.
In the double loop pulsating heat pipes, thermal resistance change is unobvious with heat input. In this article we found that the flow oscillating can enhance heat transfer, but there is a critical in low incline angle.

關鍵字(中)

★ 震盪型熱管
★ 可視化
★ 平板

關鍵字(英)

★ Visualization
★ Pulsating Heat Pipe
★ Flat Plate

論文目次

摘要 i
英文摘要 ii
目錄 iii
表目錄 vi
圖目錄 vii
符號說明 xi
第一章、前言 1
1.1 研究動機與背景 1
1.2 研究目的 2
第二章、文獻回顧 8
2.1 簡介 8
2.1.1 工作原理 8
2.1.2 結構與樣式 8
2.2 震盪型熱管設計參數及操作參數 9
2.2.1 管徑設計 9
2.2.2 工作流體填充率 11
2.2.3 工作流體的選擇 11
2.2.4 傾斜角度放置及重力的影響 13
2.3 平板式震盪型熱管 14
2.4 總結 15
第三章、實驗方法 27
3.1 平板震盪型熱管可視化模組設計 27
3.1.1 流道尺寸 27
3.1.2 迴路設計 28
3.2 平板震盪型熱管可視化模組製作 29
3.2.1 板片蝕刻 29
3.2.2 可視化模組製作 30
3.2.3 平板震盪型熱管充填 31
3.3 實驗系統 32
3.3.1 測試段 32
3.3.2 冷卻循環系統 33
3.4 實驗步驟 33
3.5 實驗量測儀器與設備 34
3.5.1 溫度量測 34
3.5.2 流量量測 34
3.5.3 電熱棒、直流電源供應器 35
3.5.4 冷卻水循環泵 35
3.5.5 恆溫水槽 35
3.5.6 高速攝影機 35
3.5.7 資料擷取系統 36
3.6 數據換算 36
3.6.1 加熱瓦數 37
3.6.2 熱阻 37
第四章、實驗結果與討論 48
4.1單一迴路平板震盪型熱管 48
4.2雙向迴路平板震盪型熱管 53
第五章、結論 89
參考文獻 90
附錄一 93
附錄二 96

參考文獻

Akachi, H., 1990, US Patent Number 4921041.
Akachi, H., 1990, US Patent Number 5490558.
Akachi, H., Polasek, F., and Stulc, P., 1996, “Pulsating Heat Pipes,” Proc. 5th Int. Heat Pipe Symposium, Melbourne, Australia, pp. 208-217
Charoensawan, P., Khandekar, S., Groll, M., and Terdtoon, P., 2003, “Closed loop pulsating heat pipes Part A: parametric experimental investigations,” Applied Thermal Engineering, pp. 2009-2020.
Charoensawan, P., Terdtoon, P., Tantakom, P., Ingsuwan, P., and Groll, M., 2000 “Effects of inclination angles, Filling Ratios and total Lengths on heat transfer characteristics of a closed-loop oscillating heat pipe”. Proceeding of 6th International Heat Pipe Symposium, Chiang Mai, Thailand, pp. 422–430.
Charoensawan, P., Terdtoon, P., 2008, “Thermal Perfomance of Horizontal Closed-Loop Oscillating Heat Pipes,” Applied Thermal Engineering, pp.460-466.
Dobson, R., and Harm, T.M., 1999, “Lumoed Parameter Analysis of closed and open oscillatory heat pipes,” Proc. 11th International Heat Pipe Conference, Vol. 2, Japan, pp. 137-142.
Gi, K., Maezawa, S., Kojima, Y., and Yamazaki. N., 1999, “CPU Cooling of Notebook PC by Oscillating Heat Pipe,” Proc. 11th International Heat Pipe Conference, Vol. 2, Japan, pp. 166-169.
Groll, M., and Khandekar, S., 2002, “Pulsating Heat Pipes: A Challenge and Still Unsolved Problem in Heat Pipe Science,” The Third International Conference on Transport Phenomena in Multiphase System, pp. 35-43.
Groll, M., and Khandekar, S., 2003, “Pulsating Heat Pipes: Progress and Prospects,” Proc. International Conference on Energy and the Environment, Shanghai, China.
Groll, M., and Khandekar, S., 2004, “State of The Art on Pulsating Heat Pipes,” Microchannels and Minichannels, Rochester, New York, USA.
Khandekar, S., Schneider, M., Schäfer, P., Kulenovic, R., and Groll, M., 2002, “Thermofluid dynamic study of flat-plate closed-loop pulsating heat pipes,” Microscale Thermophysical Engineering, pp.303-318.
Khandekar S., Cui X. and Groll M., 2002, “Thermal Performance Modeling of Pulsating Heat Pipes,” Proc. 12th International Heat Pipe Confence, Moscow, Vol. 2
Khandekar, S., and Groll, M., 2003, “On The Definition of Pulsating Heat Pipes: An Overview,” Proc. 5th Minsk International Seminar (Heat Pipes, Heat Pumps and Refrigerators), Minsk,Belarus.
Khandekar, S., Charoensawan, P., Groll, M., and Terdtoon, P., 2003, “Closed Loop Pulsating Heat Pipes Part B: Visualization and Semi-Empirical Modeling,” Applied Thermal Engineering, Vol. 23, pp. 2021-2033
Lee, S., 1998, “Calculating Spreading Resistance In Heat Sinks,” Electronics Cooling, January, Vol.4, No.1
Lee, W. H., Jung, H. S., Kim, J. H., Kim, J. S., 1999, “Flow Visualization of Oscillating Capillary Tube Heat Pipe,” Proc. 11th International Heat Pipe Conference, Vol. 2, Japan, pp. 131-136
Meazawa, S., 2000, “Heat Pipe: Its Origin, Development and Present Situation,” Proc. 6th International Heat Pipe Symposium, Chiang Mai, pp. 3-13
Rittidech, S., Terdtoon, P., Murakami, M., Kamonpet, P., Jompakdee, W., 2003, “Correlation to Predict Heat Transfer Characteristics of a Closed-end Oscillating Heat Pipe at Normal Operating Condition,” Applied Thermal Engineering, pp.497-510.
Yang, H., Khandekar S., Groll, M., 2008, “Operational Limit of Closed Loop Pulsating Heat Pipes ,” Applied Thermal Engineering, pp.49-59.
王培綱，2007，平板震盪型熱管均熱片研究，國立中央大學機械工程研究所碩士論文，中壢。
賴耿陽，2000，金屬腐蝕加工技術，復漢出版社有限公司，台南。
葉竣達，2006，震盪式熱管簡介，中央大學熱交換器實驗室內部報告。

指導教授

楊建裕(Chien-Yuh Yang)

審核日期

2009-11-13

推文