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姓名 李永興(Yung-Hsing Li)  查詢紙本館藏   畢業系所 機械工程學系
論文名稱 油冷卻器性能測試分析與比較
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摘要(中) 本文主要以實驗方法對航空用油冷卻器作熱傳與壓降性能測試及分析。工作流體分別在管側為燃料油(JP-10),在殼側為液壓油(MIL-H-5606)及滑油(MIL-L-7808),來測試油冷卻器,TF-34兩側的工作溫度,在燃料油為60 oC、80 oC,而液壓油為120 oC,而兩側的流量,燃料油為1.0~8 l/min,液壓油為3.0~14.1 l/min。YC-S002兩側的工作溫度,在燃料油為32.2 oC,而滑油為148.8 oC,而兩側的流量,燃料油為1.5~6.0 l/min,滑油為1.0~6.5 l/min。紐賽爾數隨雷諾數變化的情形,於文中詳細探討。
經由壓降與流量的關係圖,可以發現燃料油對液壓油(滑油)兩側之壓降大致和流量之平方成正比,與一般流體在管內流動之特性相同。但熱傳性能較其他現有熱傳增強管佳。
關鍵字(中) ★ 撐板
★ 壓降
★ 熱傳
★ 增強管
★ 油冷卻器
關鍵字(英)
論文目次 摘要----------------------------------------------------------------------------------- i
目錄----------------------------------------------------------------------------------- ii
表目錄-------------------------------------------------------------------------------- iv
圖目錄--------------------------------------------------------------------------------v
符號說明----------------------------------------------------------------------------- xi
第一章 前言------------------------------------------------------------------------ 1
1.1研究動機------------------------------------------------------------------------- 1
1.2研究目的------------------------------------------------------------------------- 2
第二章 文獻回顧------------------------------------------------------------------ 6
2.1扭轉帶----------------------------------------------------------------------------7
2.1.1 扭轉帶管內壓降------------------------------------------------------- 7
2.1.2 扭轉帶管內熱傳-------------------------------------------------------9
2.2 斷續突出-----------------------------------------------------------------------11
2.3 金屬螺旋線--------------------------------------------------------------------12
2.4 殼側流動情況-----------------------------------------------------------------13
第三章 實驗方法----------------------------------------------------------------- 21
3.1 簡介----------------------------------------------------------------------------- 21
3.2 實驗系統-----------------------------------------------------------------------22
3.3 實驗量測設備---------------------------------------------------------------- 23
3.3.1 溫度測量--------------------------------------------------------------- 23
3.3.2 壓力測量--------------------------------------------------------------- 23
3.3.3 壓差測量------------------------------------------------------------- 24
3.3.4 流量測量------------------------------------------------------------- 24
3.3.5 資料擷取系統------------------------------------------------------- 25
3.4 實驗步驟--------------------------------------------------------------------- 25
3.4.1變化燃料油側熱傳係數及壓降量測------------------------------ 26
3.4.2變化液壓油側熱傳係數及壓降量--------------------------------- 26
3.5 數據換算----------------------------------------------------------------------- 27
3.5.1 壓降實驗-------------------------------------------------------------- 27
3.5.2 熱傳實驗-------------------------------------------------------------- 29
3.5.3修正Wilson圖形法---------------------------------------------------30
第四章 結果分析與討論------------------------------------------------------- 54
4.1.1 YC-S002熱交換器壓降實驗結果--------------------------------------- 54
4.1.2 YC-S002熱交換器熱傳實驗結果--------------------------------------- 55
4.2.1 TF-34熱交換器壓降實驗結果------------------------------------------ 57
4.2.2 TF-34熱交換器熱傳實驗結果------------------------------------------- 57
第五章 結論---------------------------------------------------------------------- 104
5.1 YC-S002熱交換器---------------------------------------------------------- 104
5.2 TF-34熱交換器-------------------------------------------------------------- 105
參考文獻--------------------------------------------------------------------------107
附錄--------------------------------------------------------------------------------110
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顧維藻, 神家銳, 馬重芳, 張玉明,1990,強化傳熱,科學出版社,北京。
王啟川,2001,熱交換器設計,五南出版社,台北。
指導教授 楊建裕(Chien-Yuh Yang) 審核日期 2004-7-19
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