多孔性陶瓷介質燃燒爐結構對燃燒現象之影響

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姓名

李家欣(Jian-Xing Lee) 查詢紙本館藏

畢業系所

機械工程學系

論文名稱

多孔性陶瓷介質燃燒爐結構對燃燒現象之影響
(The Effects of the Structure of a Porous Medium Burner on It’s Combustion Characteristics)

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關鍵字(中)

★ 穩定極限
★ 間隙
★ 當量比
★ 多孔性陶瓷介質燃燒爐

關鍵字(英)

論文目次

中文摘要………………………………………………………………….I
英文摘要………………………………………………………………...II
誌謝……………………………………………………………………..III
目錄……………………………………………………………………..IV
表目錄………………………………………………………………...VIII
圖目錄…………………………………………………………………..IX
第一章緒論……………………………………………………………..1
1.1 前言…………………………………………………………….1
1.2 專有名詞定義………………………………………………….3
1.2.1定當量條件與當量比……………………………………..3
1.2.2火焰溫度…………………………………………………..4
1.2.3燃燒速率…………………………………………………..4
1.2.4可燃極限…………………………………………………..5
1.3 文獻回顧……………………………………………………….5
1.4 研究目的……………………………………………….……..15
第二章實驗裝置………………………………………………………18
2.1 實驗裝置….…...……………………………………………...18
2.2燃燒爐結構…………………………………………………….18
2.3 爐體部份……………………………………………………...19
2.3.1多孔性陶瓷介質…………………………………………19
2.3.2爐體隔熱材………………………………………………20
2.4 溫度量測系統………………………………………………...20
2.4.1熱電偶選擇與安置………………………………………21
2.4.2溫度數據擷取……………………………………………21
2.5 氣體流量量測與控制部份…………………………………...22
2.5.1氣體部份…………………………………………………22
2.5.2流量量測與控制…………………………………………22
2.5.3流量數據擷取系統………………………………………23
2.6 預混部份……………………………………………………...23
2.7 LabView程式部份…………………………………………….24
2.7.1控制質流量控制器部分…………………………………25
2.7.2擷取溫度與質流量控制器電位差訊號部分……………25
2.7.3同一溫度層之溫度平均並畫成示波器圖形部分………26
2.7.4判斷溫度分布穩定與否部分……………………………27
2.7.5計算當量比及平均流速部分……………………………28
2.7.6各點溫度、各層平均溫度、空氣與甲烷之流率、當量
比、平均流速及時間數據儲存部分…………………..28
2.8廢氣量測部份………………………………………………….29
2.8.1儀器組成部分……………………………………………29
2.8.2各個偵測器與各項氣體之偵測與計算…………………30
第三章實驗流程………………………………………………………41
3.1 儀器安裝與準備……………………………………………...41
3.2 預熱爐體……………………………………………………...42
3.3 流率穩定範圍………………………………………………...42
3.3.1最大燃燒率………………………………………………43
3.3.2最小燃燒率………………………………………………44
3.4量測廢氣……………………………………………………….44
第四章結果與討論……………………………………………………47
4.1多孔性介質材質不同之比較………………………………….47
4.2有無間隙之比較……………………………………………….49
4.3間隙大小對燃燒爐之影響…………………………………….50
4.4間隙為1.0 cm時孔徑大小對燃燒爐之影響………………….52
4.5間隙為0.5 cm時孔徑大小對燃燒爐之影響………………….55
第五章結論與建議……………………………………………………65
5.1結論…………………………………………………………….65
5.2未來研究之建議……………………………………………….66
參考文獻………………………………………………………………..68
附錄一實驗數據………………………………………………………72
附錄二誤差分析………………………………………………………89
(A)溫度量測誤差…………………………………………………89
(B)CO值量測誤差………………………………………………90
(C)NO/NOX值量測誤差…………………………………………91
(D)空氣流量誤差…………………………………………………91
(E)甲烷流量誤差…………………………………………………92
(F)火焰速度誤差…………………………………………………94
(G)當量比誤差……………………………………………………95
附錄三各種材料之性質表及各項裝置與材料之出處………………97
附錄四 LabView程式圖示及程式圖……………………………...…100
附錄五質流量控制器校正表………………………………………..105

參考文獻

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指導教授

曾重仁(Chung-Jen Tseng)

審核日期

2000-6-27

推文