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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳瑤明 | |
dc.contributor.author | Shao-Chi Tseng | en |
dc.contributor.author | 曾紹琦 | zh_TW |
dc.date.accessioned | 2021-06-15T12:34:59Z | - |
dc.date.available | 2019-08-03 | |
dc.date.copyright | 2016-08-03 | |
dc.date.issued | 2016 | |
dc.date.submitted | 2016-08-01 | |
dc.identifier.citation | 參考文獻
[1] R Vochten, G Petre, “Study of the heat of reversible adsorption at the air-solution interface,” J. Colloid and Interface Science, vol. 42, issue 2, pp. 320–327, 1973. [2] James Thomson, “On certain curious motions observable on the surfaces of wine and other alcoholic liquours,” Philosophical Magazine Series 4, vol. 10, issue 67, pp. 330-333, 1984. [3] Monti, R, “Physics of Fluids in Microgravity,” Taylor and Francis, 2001. [4] Van P. Carey, “Liquid–Vapor Phase-Change Phenomena: An Introduction to the Thermophysics of Vaporization and Condensation Processes in Heat Transfer Equipment,” Taylor and Francis, London, 2001. [5] Maidanik, Y. F., “Review-Loop Heat pipe,” Applied Thermal Engineering, 25. pp. 635-657, 2005. [6] Abe, Y., “Self-Rewetting Fluids Beneficial Aqueous Solutions,” Space Technology Group, AIST, Tsukuba, Ibaraki 305-8568, Japan, 2006. [7] C. C.Yeh, C. N.Chen and Y. M.Chen, “Heat transfer analysis of a loop heat pipe with biporouswicks,”International Journal of Heat Mass Transfer, Vol. 52, pp. 4426–4434, 2009. [8] Dunbar, R, and Santos, B. D., “Physics of Fluids in Microgravity,” Taylor and Francis”, pp. 423-429 1997. [9] Maidanik, Y.F., Vershinin, S.V., and Chernysheva, M.A., “Development and Tests of Miniature Loop Heat Pipe with a Flat Evaporator,” SAE Paper No.2000-01-2491, pp.652-656, 2000. [10] Delil, R, and Qu, Y, “Flat Loop Heat Pipe ,” International Journal of Heat and Mass Transfer”, pp. 333-349 2002. [11] Maidanik, Y.F., Pastukhov, V.G., Vershinin, C.V., and Korukov, M.A., “Miniature Loop Heat Pipe for Electronic Cooling,” Applied Thermal Engineering 23, pp.1125-1135, 2003. [12] Maydanik, Y.F., Vershinin, S.V., Chernysheva, M., Yushakova, S.,”Investigation of a compact copperewater loop heap pipe with a flat evaporator,” Applied Thermal Engineering Vol.31, pp. 3533-3541, 2011. [13] Li, Q., Renaud, J., Lybaert, V., Feldheim, P., Dupont, V., and Van Oost, S., “Experimental and Numerical Characterization of a Loop Heat Pipe for Space Applications,” 7th National Congress on Theoretical and Applied Mechanics, Belgium, 2013. [14] Maydanik, Y.F., Chernysheva, M.A., Pastukhov, V.G., “Investigation of thermal characteristics of high-capacity loop heatpipes after a long-term storage” Energy Vol.74, pp. 804-809, 2014. [15] Maydanik, Y.F., Chernysheva, M.A., Pastukhov, V.G., “Review: Loop heat pipes with flat evaporators” Applied Thermal Engineering Vol.67, pp. 294-307, 2014 [16] Boo, R. R. and Santos, N. D., “Performance Improvement in Loop Heat Pipe Using Primary Wick with Circumferential Grooves,” International Conference on Environmental Systems, Norfolk, USA, July, 2009. [17] Adoni, T., Ogushi, T., Haga, S., Ozaki, E., and Fujii, M., “Heat Transfer Performance of Flexible Looped Heat Pipe using R134a as a Working Fluid : Proposal for a Method to Predict the Maximum Heat Transfer Rate of FLHP,” Heat Transfer-Asian Research, Vol. 32, No. 4, pp. 306-318, 2003. [18] Park, C., Zuo J., Perez J., and Rogers, P., “HYBRID LOOP THERMAL BUS TECHNOLOGY FOR VEHICLE THERMAL MANAGEMENT”,2004. [19] Park, C., Vallury A., Zuo Z., Perez J., and Rogers, P., “ELECTRONICS THERMAL MANAGEMENT USING ADVANCED HYBRID TWO-PHASE LOOP TECHNOLOGY” ASME-JSME Thermal Engineering Summer Heat Transfer Conference, 2007. [20] Bugby, C., Thorsen, A. J., Czerwonka, L. A., Bao, Y., Langer, R., Winslow, D. N., and Vacanti, J. P. “Preparation and Characterization of Poly(L-lactic acid) Foams,” Polymer, Vol. 35, No. 5, pp.1068-1077, 2007. [21] Park, C., and Davis, S. H.,‘‘Non-Isothermal Spreading of Liquid Drops on Horizontal Plates,’’ J. Fluid Mech., 229, pp. 365–388,2009. [22] Michael Zhang, Raffaele Savino, Yoshiyuki Abe, “New alcohol solutions for heat pipes: Marangoni effect and heat transfer enhancement,” Int. J. Heat Mass Tran., vol.51, pp. 6199–6207, 2011. [23] Michael Zhang, ‘‘Innovative Heat Pipe Systems Using a New Working Fluid,’’ Int. Comm. Heat Mass Transfer. vol. 28, no. 8, pp. 1025-1033, 2012. [24] Gorring, E.M., “Polymer Data Handbook,” Published by Oxford University Press, 1961. [25] Riehl, R. R. and Santos, N. D., “Performance Improvement in Loop Heat Pipe Using Primary Wick with Circumferential Grooves,” International Conference on Environmental Systems, Norfolk, USA, July, 2006. [26] Baumann, D., and Rawal, M. “MEMS Loop Heat Pipe Based on Coherent Porous Silicon Technology,” AIP conference proceedings, No. 608, pp. 220-232, 2001.. [27] Nagano, H., Nishikawara M., Fukuyoshi F., Nagai H. and Ogawa H., “Thermal Vacuum Testing of a Small Loop Heat Pipe with a PTFE Wick for Spacecraft Thermal Control,” Transactions of the Japanese Society for Artificial Intelligence, Aerospace Technology Japan, Volume 10, pp. 27-33, 2012. [28] Ku, T., and Ku, J., “Thermal operational characteristics of a small-loop heat pipe,” Journal of Thermophysics and Heat Transfer, Vol. 17 NO. 4, 1999. [29] Moffat, J.T., and Peterson G.P., “Experimental and analytical investigation of a capillary pumped loop,” Journal of Thermophysics and Heat Transfer, Vol. 8, No. 3, July-Sept. 1994 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/50284 | - |
dc.description.abstract | 迴路式熱管具相變化功能、熱通量高、傳輸距離遠、熱阻小等優點。為使迴路式熱管熱傳性能提升以因應密集的能源使用,如核能發電廠、電子晶片模組等高功率密度的散熱需求,本研究擬開發適用於高功率密度(>100 W/cm2)平板型迴路式熱管散熱系統,採用整合毛細結構與泵的混合式驅動概念,建立複合式平板型迴路式熱管散熱系統。探討泵在流量變化(0.3 L/min~1.5 L/min)對複合式平板型迴路式熱管的熱傳現象,並使用鎳與鐵氟龍作為毛細結構評估熱洩漏的影響。
複合式平板型迴路式熱管以鎳作為毛細結構並搭配純水,在泵流量0.6L/min時,最大熱傳量可達1200W (熱通量為 153.1 W/cm2)最低總熱阻值為 0.09 ℃/W。在流量效應上最佳流量會有最低總熱阻值,對鎳和鐵氟龍毛細結構分別是0.9L/min和1.2L/min,在最佳流量下且壁面溫度100℃限制並以丙酮作為工質,鎳毛細結構最大熱傳量700W(熱通量為 89.3W/cm2)和最低總熱阻值0.07℃/W;鐵氟龍毛細結構最大熱傳量900W(熱通量為 114.8W/cm2)和最低總熱阻值0.04℃/W。鐵氟龍較鎳毛細結構在最大熱傳量上提升近30%,最低總熱阻值減少42.9%。在電子冷卻蒸發器壁面容許溫度85℃下,鎳毛細結構最大熱傳量500W (熱通量為 63.8W/cm2),而最低總熱阻值為 0.07℃/W;鐵氟龍毛細結構最大熱傳量800W (熱通量為 102.9W/cm2)而最低總熱阻為 0.04℃/W。鐵氟龍毛細結構較鎳毛細構提升60%,最低熱阻減少42.9%。實驗發現熱洩漏對複合式平板型迴路式熱管熱傳性能影響不明顯,而由水銀測孔發現鐵氟龍毛細結構具有雙孔徑的現象,其大孔可以減少流阻和使蒸氣排放順利,進而使最大熱傳量與總熱阻值皆優於鎳毛細結構。 | zh_TW |
dc.description.abstract | Loop heat pipes have the advantages of phase changing, high heat flux capability, longer distance heat transport and small thermal resistance. The aim of this study is to develop the flat plate loop heat pipe (FP-LHP) cooling system for high heat flux equipment, such as nuclear power plants, supercomputers, and high speed networks. The hybrid FP-LHP combined active mechanical pumping force with passive capillary structure. The operating characteristics of the hybrid FP-LHP was investigated in the range of flow rates from 0.3 L/min to 1.5 L/min. To evaluate the effect of the heat leakage, nickel and PTFE are used as materials of capillary structure for the hybrid FP-LHP.
In testing the nickel-water hybrid FP-LHPs at flow rate 0.6L/min, the maximum heat load achieved is 1200W (heat flux 153.1 W/cm2) and the minimum thermal resistance is at a level of 0.09 ℃/W. The effect of the flow rate shows that there is a minimum value of the total thermal resistance at the optimal flow rate. For a nickel and a PTFE wick, the corresponding flow rate are 0.9 L/min and 1.2 L/min, respectively. To reduce the level of the hybrid FL-LHP operating temperature, acetone is used as working fluid. At the optimal flow rate and a maximum allowable of the evaporator’s wall temperature about 100℃, with the use of a nickel wick the maximum heat load is 700W (heat flux 89.3 W/cm2) and the minimum of the total thermal resistance is 0.07 ℃/W; for the PTFE wick the maximum heat load achieved is 900W (heat flux 114.8 W/cm2) and the minimum of the total thermal resistance is 0.04 ℃/W。A PTFE wick has the maximum heat load transfer 30% greater than a nickel wick. With the same testing conditions and for electronic cooling the evaporator’s wall temperature does not exceed 85℃. In this case, a nickel wick’s heat load is about 500W (heat flux 63.8 W/cm2) and for a PTFE wick this value is up to 800W (heat flux 102.9 W/cm2), which is 60% larger than a nickel wick. The minimum of the total thermal resistance for a nickel wick is 0.07 ℃/W and for a PTFE wick it is 0.04 ℃/W, which is lower than a nickel wick about 43%。Moreover, the results of testing indicate that the heat leakage has the limited influence for the hybrid FP-LHP system. From the Mercury Porosimeter, the PTFE wick has biporous distribution. With the big pore radius, it can not only decrease the hydraulic drag but also release the vapor smoothly. For the hybrid FP-LHP system, the most efficient wick structure is PTFE. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T12:34:59Z (GMT). No. of bitstreams: 1 ntu-105-R03522104-1.pdf: 3675921 bytes, checksum: d74643ab8290085743f43427fdcc0810 (MD5) Previous issue date: 2016 | en |
dc.description.tableofcontents | 學位論文口試委員會審定書 I
誌謝 II 摘 要 III Abstract IV 目 錄 VI 圖目錄 IX 表目錄 XI 符號說明 XII 第一章 緒論 1 1.1前言 1 1.1-1傳統熱管(Heat Pipe, HP) 1 1.1-2迴路式熱管(Loop Heat Pipe, LHP) 2 1.1-3金屬與高分子毛細結構 5 1.2文獻回顧 6 1.2-1 迴路式熱管文獻回顧 6 1.2-2 複合式兩相流迴路文獻回顧 8 1.3研究目的 9 第二章 實驗原理與理論分析 10 2.1迴路式熱管的基本原理 10 2.2迴路式熱管的操作限制 12 2.2-1毛細限制 12 2.2-2啟動限制 13 2.2-3液體過冷限制 14 2.3工質填充量與補償室尺寸 15 2.3-1工質填充量 15 2.3-2補償室尺寸 15 2.4迴路式熱管的熱阻分析 16 2.4-1蒸發器熱阻 16 2.4-2蒸氣段熱阻 17 2.4-3冷凝器熱阻 18 第三章 複合式平板型迴路式熱管之設計 19 3.1 工質的選擇 19 3.2 系統材質的選擇 22 3.3 泵的選擇 22 3.4 傳輸管路與冷凝器 24 3.5 補償室與儲存槽之設計 25 3.6 毛細結構之設計 25 3.6-1 毛細結構材料選擇 26 3.6-2 毛細結構溝槽設計 27 3.6-3 針對經由毛細結構熱洩漏的解決方法 27 3.7 毛細結構之設計 29 3.7-1 加熱方向 29 3.7-2 散熱作用面積 30 3.7-3 平面板形狀 30 第四章 實驗儀器設備與方法 31 4.1實驗材料與製造設備 31 4.1-1毛細結構材料 31 4.1-2製造設備 32 4.2毛細結構製程 35 4.3毛細結構內部參數量測 36 4.4 熱傳測試步驟及評估 39 4.5複合式平板型迴路式熱管系統參數 43 4.6誤差分析 43 第五章 結果與討論 45 5.1毛細結構 45 5.2複合式平板型迴路式熱管熱傳性能測試 47 5.3流量變化對複合式平板型迴路式熱管之影響 51 5.3-1鎳毛細結構 51 5.3-2鐵氟龍毛細結構 54 5.4 鐵氟龍與鎳毛細結構之熱傳性能比較 57 5.4-1 熱洩漏對複合式平板型迴路式熱管之影響 58 5.4-2 孔徑分布對複合式平板型迴路式熱管之影響 59 第六章 結論與建議 61 參考文獻 63 附 錄 66 附錄A 量測不準度分析 66 附錄B 熱電偶校正曲線 71 附錄C 實驗測試數據 74 | |
dc.language.iso | zh-TW | |
dc.title | 具毛細結構與泵複合式平板型迴路式熱管之研究 | zh_TW |
dc.title | The Study of Wick Structure and Pump-Assisted for Hybrid Flat Plate Loop Heat Pipe | en |
dc.type | Thesis | |
dc.date.schoolyear | 104-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 吳聖俊,林芳州 | |
dc.subject.keyword | 複合式平板型迴路式熱管,毛細結構,泵,流量,鐵氟龍, | zh_TW |
dc.subject.keyword | Hybrid Flat Plate Loop Heat Pipe,Wick Structure,Liquid Pump,Flow Rate,PTFE, | en |
dc.relation.page | 79 | |
dc.identifier.doi | 10.6342/NTU201601729 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2016-08-01 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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