跳到主要內容

簡易檢索 / 詳目顯示

回結果列表
研究生： 岳志傑
Zhe-Jian Yua
論文名稱： 扁平管平行流熱交換器之研製與性能分析
指導教授： 楊建裕
Chien-Yuh Yang
口試委員:
學位類別： 碩士
Master
系所名稱： 工學院 - 機械工程學系
Department of Mechanical Engineering
畢業學年度： 88
語文別： 中文
論文頁數： 118
中文關鍵詞： 扁平管平行流熱交換器 、百葉窗型氣孔鰭片 、扁平管平行流冷凝器 、圓管穿管式熱交換器 、扁平鋁擠型
相關次數： 點閱：10  下載：0 
分享至:
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報


    • 目 錄 頁次 摘要--------------------------------------------------------------------------------------i 目錄--------------------------------------------------------------------------------------ii 表目錄----------------------------------------------------------------------------------- v 圖目錄-----------------------------------------------------------------------------------vi 符號說明--------------------------------------------------------------------------------xii 第一章 前言---------------------------------------------------------------------------1 1.1 研究動機--------------------------------------------------------------------------1 1.2 研究目的--------------------------------------------------------------------------3 第二章 文獻回顧---------------------------------------------------------------------10 2.1 鰭管式熱交換器種類分析-----------------------------------------------------10 2.1.1 圓管穿管式熱交換器--------------------------------------------------- 10 2.1.2 扁平管式熱交換器------------------------------------------------------ 10 2.2 熱交換器設計法概述-----------------------------------------------------------13 2.2.1 性能設計問題------------------------------------------------------------ 13 2.2.2 尺寸設計問題------------------------------------------------------------ 14 2.2.3 熱傳分析方法------------------------------------------------------------ 15 2.3 熱交換器設計分析探討--------------------------------------------------------16 2.4 百葉窗型鰭片熱傳分析--------------------------------------------------------20 2.5 管側熱傳分析--------------------------------------------------------------------25 2.5.1 單相熱傳----------------------------------------------------------------- 25 2.5.2 兩相冷凝熱傳------------------------------------------------------------ 26 第三章 熱交換器設計及測試系統------------------------------------------------40 3.1 熱交換器設計--------------------------------------------------------------------40 3.1.1 百葉窗型氣孔鰭片型式的選取--------------------------------------- 40 3.1.2 扁平鋁擠型管型式的選取--------------------------------------------- 41 3.1.3 扁平管平行流冷凝器PFC設計原理-------------------------------- 41 3.1.4 PFC設計原則---------------------------------------------------------- 42 3.1.5 PFC計算程序---------------------------------------------------------- 43 3.2 測試系統-------------------------------------------------------------------------- 49 3.2.1 開放式風洞-------------------------------------------------------------- 49 3.2.2 熱水循環系統----------------------------------------------------------- 49 3.2.3 資料蒐集系統-----------------------------------------------------------50 3.2.4 實驗量測設備------------------------------------------------------------ 50 3.2.5 測試件--------------------------------------------------------------------- 52 3.3 實驗方法--------------------------------------------------------------------------52 第四章 理論分析---------------------------------------------------------------------66 4.1 熱傳分析--------------------------------------------------------------------------66 4.2 壓降分析--------------------------------------------------------------------------72 第五章 結果分析與討論------------------------------------------------------------75 5.1 圓管穿管式與扁平管平行流熱交換器之性能比較-----------------------75 5.1.1 圓管穿管式熱交換器實驗結果---------------------------------------75 5.1.2 扁平管平行流熱交換器實驗結果------------------------------------76 5.1.3 穿管式與扁平管平行流熱交換器性能比較------------------------77 5.2 扁平管平行流熱交換器測試與程式模擬結果比較-----------------------77 5.2.1 測試條件-------------------------------------------------------------------77 5.2.2 最佳化程式精確度分析-------------------------------------------------78 5.2.3 質傳效應分析-------------------------------------------------------------78 5.2.4 管排數分佈與熱阻比性能分析----------------------------------------79 5.3 現有市售熱交換器模擬比較---------------------------------------------------79 5.3.1 運轉環境與模擬狀態設定----------------------------------------------79 5.3.2 模擬結果與討論----------------------------------------------------------80 5.3.3 在不同正向風速下之熱負載及鰭測壓損圖-------------------------81 第六章 結論---------------------------------------------------------------------------129 參考文獻--------------------------------------------------------------------------------132 附錄--------------------------------------------------------------------------------------137 表 目 錄 頁次 表2.1(a)Wang et al. (1996，1997，1998) 實驗條件28 表2.1(b)Wang et al. (1996，1997，1998)三種鰭片之尺寸規格28 表2.2 Goodremote et al. (1988) 所做熱交換器詳細尺寸29 11 表3.1實驗設備誤差表54 表3.2測試件幾何尺寸55 表5.1圓管穿管式熱交換器No 4與扁平管平行流熱交換器 No 9之性能評估 (FG-3)82 表5.2No 9實際測試條件、結果與最佳化程式運算結果比較83 表5.3管排數分佈與熱阻比(管內最小熱阻PASS之熱阻值/ 管內最大熱阻PASS之熱阻值)之性能分析84 表5.4圓管穿管熱交換器單體基本參數85 表5.5分別對圓管穿管式冷凝器在相同熱負載下之模擬86 圖 目 錄 頁次 圖 1.1冷氣機全圖 4 圖 1.2 典型鰭管式熱交換器單體示意圖 5 圖1.3 蛇盤管冷凝器單體示意圖 5 圖1.4低速尾流區域6 圖1.5 扁平管平行流熱交換器單體示意圖7 圖1.6 圓管穿管式熱交換器與扁平管平行 流熱交換器側視圖8 圖1.7 扁平管平行流冷凝器流動方式簡圖9 圖2.1 三種鰭片之熱傳性能與壓降比較30 圖2.2 扁平管與圓管鰭片結構之比較31 圖2.3 Goodremote et al. [1988]的實驗結果比較32 圖2.4 Sugihara and Lukas (1990)的實驗結果比較33 圖2.5 鰭管式熱交換器試驗樣品迴路結構34 圖2.6泛用型盤管迴路指標子迴路-分支之定義35 圖2.7第 ic 子迴路、第 ib 分支管路結構36 圖2.8控制容積37 圖2.9PFC設計分段圖(褚耀宗[1999])37 圖 2.10歧管流與邊界層流 (Achaichia ＆ Cowell[1988])38 圖 2.11Louver Fin 間流場結構 (Webb ＆ Trauger[1991])39 圖 3.1百葉窗型鰭片與扁平鋁擠型管示意圖56 圖 3.2熱交換器廠商提供之扁平管及百葉窗型鰭片詳細尺寸圖57 圖 3.3PFC尺寸計算(Sizing Procedure) 流程圖58 圖 3.4PFC性能計算( Rating Procedure ) 流程圖59 圖 3.5開放式風洞示意圖60 圖 3.6熱水循環系統61 圖 3.7資料蒐集系統62 圖 3.8電阻式溫度計校正曲線圖63 圖 3.9熱電偶溫度計校正結果64 圖 3.10水流量計校正結果65 圖 4.1鰭片效率估算方式( Schmidt [1945] )73 圖 4.2入口(Kc)及出口(Ke)壓損因子關係圖74 圖 5.1圓管穿管式熱交換器性能曲線圖87 圖 5.2穿管式熱交換器No 4與No 5性能曲線與 Wang et al.(1998)之關係式比較88 圖 5.3鰭片間距為1.3mm之扁平管平行流熱交換器性能曲線與Chang et al.(1996，2000)關係式比較89 圖 5.4鰭片間距為1.7mm之扁平管平行流熱交換器性能曲線與Chang et al.(1996，2000)關係式比較90 圖 5.5圓管穿管式熱交換器No 4與扁平管平行流熱交換器No 9之鰭側熱傳性能比較91 圖 5.6圓管穿管式熱交換器No 4與扁平管平行流熱交換器No 9之鰭側壓降比較92 圖 5.7No 9在不同運轉風速下之熱負載量與鰭側壓損預測分析93 圖 5.8扁平管平行流冷凝器No 9打水與未打水之性能預測分析94 圖 5.9a利用扁平管平行流冷凝器取代圓管穿管式冷凝器(熱負載：2014kcal/hr)之模擬預測分析95 圖 5.9b利用扁平管平行流冷凝器取代圓管穿管式冷凝器(熱負載：3535kcal/hr)之模擬預測分析96 圖 5.9c利用扁平管平行流冷凝器取代圓管穿管式冷凝器(熱負載：4502kcal/hr)之模擬預測分析97 圖 5.9d利用扁平管平行流冷凝器取代圓管穿管式冷凝器(熱負載：5772kcal/hr)之模擬預測分析 98

    Akers, W. W., Deans, H. A., and Crosser, O. K., 1959, “Condensing Heat Transfer within Horizontal Tubes,” Chemical Engineering Progressive Symposium Series, Vol. 55, No. 29, pp. 171-176
    Akers, W. W., Deans, H. A., and Crosser, O. K., 1959, “Condensing Heat Transfer within Horizontal Tubes,” Chemical Engineering Progressive Symposium Series, Vol. 55, No. 29, pp. 171-176
    Akers, W. W., Deans, H. A., and Crosser, O. K., 1959, “Condensing Heat Transfer within Horizontal Tubes,” Chemical Engineering Progressive Symposium Series, Vol. 55, No. 29, pp. 171-176
    Chang, Y. J., and Wang, C.C., 1996, “Air Side performance of Brazed Aluminum Heat Exchangers,” Journal of Enhanced Heat Transfer, Vol. 3, No. 1, pp. 15-28.
    Chang, Y. J., Wang, C. C., 1996, “A Generalized Heat Transfer Correlation For Louver Fin Geometry,” International Journal of Heat and Mass Transfer, Vol. 40,pp. 533-544.
    Chang, Y. J., Wang, C. C., and Chang, W. J., 1994, “Heat Transfer and Flow Characteristics of Automotive Brazed Aluminum Heat Exchangers,” ASHRAE Transactions, pp. 643-652.
    Chang, Y. J., Wang, C. C., and Chang, W. J., 1994, “Heat Transfer and Flow Characteristics of Automotive Brazed Aluminum Heat Exchangers,” ASHRAE Transactions, pp. 643-652.
    Chang, Y. J., Wang, C. C., and Chang, W. J., 1994, “Heat Transfer and Flow Characteristics of Automotive Brazed Aluminum Heat Exchangers,” ASHRAE Transactions, pp. 643-652.
    Chi, K. Y., Wang, C. C., Chang, Y. J., and Chang, Y. P., 1998, “A Comparison Study of Compact Plate Fin-and-Tube Heat Exchangers,” ASHRAE Transactions, pp. 548-555.
    Cowell, T. A., 1990, “A General Method for the Comparison of Compact Heat Transfer Surfaces,” ASME Journal of Heat Transfer, Vol. 112, pp. 288-294.
    Dillen, E. R., and Webb, R. L., 1994, “Rationally Based Heat Transfer and Friction Correlations for the Louver Fin Geometry,” SAE Technical Paper Series 940504
    Dillen, E. R., and Webb, R. L., 1994, “Rationally Based Heat Transfer and Friction Correlations for the Louver Fin Geometry,” SAE Technical Paper Series 940504
    Davenport,C.J., 1983,”Correlation for Heat Transfer and Flow Friction
    Characteristics of Louver Fin ,” Heat Transfer-Seattle 1983,
    N.M.Farukhi, editor, AIChE Symposia Series, V-79, No. 225.
    ESDU 86018, Engineering Science Data Unit 86018 with Amendment A, July 1991, pp. 92-107, ESDU International, London. Quoted in Chi, K. Y., Wang, C. C., Chang, Y. J., and Chang, Y. P., 1998
    Gnielinski, V., 1976, “New Equations for Heat and Mass Transfer in Turbulent Pipi and Channel Flow,” International Chemical Engineering, Vol. 16, pp. 359-368
    Goodremote, C. E., Guntly, L. A. and Costello, N. F., 1988, “Compact Air Cooled Air Conditioning Condenser,” SAE Technical Paper Series 880445.
    Incropera, F. P., and DeWitt, D. P., 1996, “Fundamentals of Heat and Mass Transfer,” 4thed John Wiely & Sons, Inc.
    Kays, W. M., and London, A. L., 1984, “Compact Heat Exchangers,” 3thed. McGraw-Hill, New York.
    Kays, W. M., and London, A. L., 1984, “Compact Heat Exchangers,” 3thed. McGraw-Hill, New York.
    McQuiston, F. C., and Parker, J. D., 1994, “Heating Ventilating and Air Conditioning Analysis and Design,” 4thed. John Wiely & Sons, Inc.
    Norris,R.H.,& Spofford, W.A., 1942,”High-Performance Fins For Heat Transfer,” Transaction of ASME,1942, pp.489-496.
    Sahnoun, A., and Webb, R. L., 1992, “Prediction of Heat Transfer and Friction for the Louver Fin Geometry,” ASME Journal of Heat Transfer, Vol. 114, pp. 893-900.
    Sahnoun, A., and Webb, R. L., 1992, “Prediction of Heat Transfer and Friction for the Louver Fin Geometry,” ASME Journal of Heat Transfer, Vol. 114, pp. 893-900.
    Shah, M. M., 1979, “A General Correlation for Heat Transfer During Film Condensation inside Pipes,” International Journal of Heat and Mass Transfer, Vol. 22 (4), pp. 547-556
    Shah, M. M., 1979, “A General Correlation for Heat Transfer During Film Condensation inside Pipes,” International Journal of Heat and Mass Transfer, Vol. 22 (4), pp. 547-556
    Sugihara, A., and Lukas, H. G., 1990, “Performance of Parallel Flow Condensers in Vehicular Applications,” SAE Technical Paper Series 900597.
    Sugihara, A., and Lukas, H. G., 1990, “Performance of Parallel Flow Condensers in Vehicular Applications,” SAE Technical Paper Series 900597.
    Sugihara, A., and Lukas, H. G., 1990, “Performance of Parallel Flow Condensers in Vehicular Applications,” SAE Technical Paper Series 900597.
    Sugihara, A., and Lukas, H. G., 1990, “Performance of Parallel Flow Condensers in Vehicular Applications,” SAE Technical Paper Series 900597.
    Sugihara, A., and Lukas, H. G., 1990, “Performance of Parallel Flow Condensers in Vehicular Applications,” SAE Technical Paper Series 900597.
    Sugihara, A., and Lukas, H. G., 1990, “Performance of Parallel Flow Condensers in Vehicular Applications,” SAE Technical Paper Series 900597.
    Webb, R. L., and Trauger, P., 1991,”Flow Structure in the Louver Fin Heat Exchanger Geometry,” Experimental Thermal and Fluid Science, V-4, pp.205-217
    Webb, R. L., and Jung, S. H., 1992, “Air-Side Performance of Enhanced Brazed Aluminum Heat Exchangers,” ASHRAE Transactions, pp. 391-401.
    Webb, R. L., 1992, “Principles of Enhanced Heat Transfer,” John Wiley&Sons,Inc.
    Webb, R. L., 1998, “Convective Condensation of Superheated Vapor,” ASME Journal of Heat Transfer, Vol. 120:418-421
    Yang, C. -Y., and Webb, R. L.,1996a,“Condensation of R-12 in Small
    Hydraulic Diameter Extruded Aluminum Tubes With and Without
    Micro-fins,” Intertional Journal of Heat and Mass Transfer,
    Vol.39, No.4, pp.791- 800
    褚耀宗，1999，“扁平管平行流冷凝氣之最佳化設計,”碩士論文，中央大學機械所
    張文瑞，民83年, “鰭管式冷凝器設計,”冷凍空調&熱交換,第一期,pp.98-110
    張育瑞，民83年, “硬焊式鋁合金熱交換器之測試與分析,”冷凍空調&熱交換,第一期,pp.87-97
    張文瑞、王啟川, 1997, “鰭管式冷凝器迴路模式之探討,”中國機械工程學會第14屆全國學術研討會論文集, 熱流與能源,pp.103-108.
    劉敏生、王啟川, 1998, “氣冷式冷凝器迴路設計之數值模擬,”中國機械工程學會第15屆全國學術研討會論文集, 熱流與能源,pp.629-636.
    廖建順、王啟川, 1998, “蒸發器迴路設計安排之模擬分析,”中國機械工程學會第15屆全國學術研討會論文集, 熱流與能源,pp.327-334.

    QR CODE
    :::