油冷卻器熱傳與壓降性能實驗分析

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姓名

陳俊成(Jun-Cheng Chen) 查詢紙本館藏

畢業系所

機械工程學系

論文名稱

油冷卻器熱傳與壓降性能實驗分析
(Experimental method to test heat transfer performance and pressure drop of aviation oil cooler.)

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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），來測試油冷卻器，兩側的工作溫度，在燃料油為40 oC、60 oC、80 oC，而液壓油為80 oC、100 oC、120 oC，而兩側的流量，燃料油為0.9~4 l/min，液壓油為0.9~7.2 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。

摘要(英)

Abstract
This thesis used an experimental method to test heat transfer performance and pressure drop of aviation oil cooler. The working fluids were fuel oil (JP-10) included in tube side and hydraulic pressure oil (MIL-H-5606) that contained in shell side. To test heat transfer effect of our cooler, we taken experimental work temperature to 40oC、60oC、80oC in fuel oil and set hydraulic pressure oil work temperature to 80oC、100oC、120oC.We also set fuel oil side flow rate form 0.9~4l/min and hydraulic pressure oil side from 0.9~7.2l/min.We discussed the relation of Nu number to Re number in detail.
Through all plots of pressure drop to flow rates, we investigated both sides pressure drop of fuel oil and hydraulic pressure oil had proportion to square of flow rate, agreed with viscosity fluid, but heat transfer performance was better than present enhanced heat transfer tubes.

關鍵字(中)

★ 增強管
★ 油冷卻器
★ 壓降
★ 熱傳

關鍵字(英)

★ pressure drop
★ heat transfer
★ enhanced heat transfer tube
★ oil cooler

論文目次

目錄
頁次
摘要----------------------------------------------------------------------------------- i
目錄----------------------------------------------------------------------------------- ii
表目錄------------------------------------------------------------------------------- iv
圖目錄------------------------------------------------------------------------------- v
符號說明-------------------------------------------------------------------------- viii
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------------------------------------------------------------------ 5
2.1扭轉帶----------------------------------------------------------------------------5
2.1.1 扭轉帶管內壓降------------------------------------------------------- 6
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
第三章實驗方法----------------------------------------------------------------- 20
3.1 簡介----------------------------------------------------------------------------- 20
3.2 實驗系統-----------------------------------------------------------------------20
3.3 實驗量測設備---------------------------------------------------------------- 21
3.3.1 溫度測量--------------------------------------------------------------- 22
3.3.2 壓力測量--------------------------------------------------------------- 22
3.3.3 壓差測量------------------------------------------------------------- 23
3.3.4 流量測量------------------------------------------------------------- 24
3.3.5 資料擷取系統------------------------------------------------------- 24
3.4 實驗步驟--------------------------------------------------------------------- 24
3.4.1變化燃料油側熱傳係數及壓降量測------------------------------ 25
3.4.2變化液壓油側熱傳係數及壓降量--------------------------------- 25
3.4.3燃料油側耐壓實驗量測--------------------------------------------- 26
3.4.4液壓油側耐壓實驗量測--------------------------------------------- 26
3.5 數據換算----------------------------------------------------------------------- 27
3.5.1 壓降實驗-------------------------------------------------------------- 27
3.5.2 熱傳實驗-------------------------------------------------------------- 28
3.5.3修正Wilson圖形法---------------------------------------------------29
第四章實驗結果與討論------------------------------------------------------- 51
4.1壓降實驗結果--------------------------------------------------------------- 51
4.2熱傳實驗結果--------------------------------------------------------------- 51
第五章結論------------------------------------------------------------------------ 69
參考文獻----------------------------------------------------------------------------70
附錄----------------------------------------------------------------------------------71

參考文獻

參考文獻
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指導教授

楊建裕(Chien-Yuh Yang)

審核日期

2003-7-19

推文