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研究生:謝明峰
研究生(外文):Ming-Fong Hsieh
論文名稱:氫氣缸內直噴火花點火引擎之實驗研究
論文名稱(外文):Experimental study of hydrogen direct injection spark ignition engine
指導教授:吳進源
指導教授(外文):Jin-Yuan Wu
學位類別:碩士
校院名稱:逢甲大學
系所名稱:機械工程學所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2009
畢業學年度:97
語文別:中文
論文頁數:89
中文關鍵詞:點火正時進氣口噴射缸內直噴氫氣引擎
外文關鍵詞:ignition timingdirect injectionhydrogen engine
相關次數:
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本研究採用氫氣缸內直噴的方式對氫氣內燃機的性能進行探討,
實驗用引擎採單缸四行程由汽油燃料改成氫氣燃料,且對引擎本體上
做修改,加裝燃料噴入系統、燃料控制系統,空氣進氣量測系統及功
率量測器。
實驗結果證實燃料噴入正時在進氣行程中(60-90OaTDC)範圍內
能成功啟動氫氣引擎,在WOT 狀態及氫氣噴入壓力60bar 下轉速最大
可達2200rpm,跟實驗預設目標3600rpm 有所差距,最大原因為點火
正時不正確,當量比改變時點火正時無法在最大扭力(MBT)跳火,其
他原因包括燃料噴入時間無法隨當量比變動及控制電路輸出訊號不
穩定。
本文中以實驗結果和參考文獻做討論,探討點火正時、噴入壓力、控制電路和實驗結果的關係,其中本研究點火正時角度範圍不足曲軸角度20O為造成未達實驗目標主因。
This study chooses the hydrogen direct injection on the performance of the hydrogen engine to explore. The experiment engine adopts single cylinder and four strokes which converts gasoline fuel into hydrogen fuel.
Moreover , modified on the engine, installed fuel injection systems,control systems, air intake system and power measuring device.
Experimental results show that fuel injection timing in the intake stroke (270-300ObTDC) can successfully start the hydrogen engine, WOT status and hydrogen injection pressure 60bar amount maximum speed 2200rpm.That is disagreed with default target of 3600rpm. The major cause of ignition timing is not correct, when equivalence ratio changes ignition timing could not in the maximum torque (MBT) sparking. Followed by reasons include fuel injection pressure could not be changed with the equivalence ratio and the control circuit trigger signals as may be
unstable.
This thesis discuss our experimental results with references , discussion of the ignition timing, injection pressure, control circuit and the relationship between the experimental results. This research is insufficient
ignition timing angle to crank angle 20O not yet reached the goal of the experiment caused.
中文摘要..................................Ⅰ
英文摘要..................................Ⅱ
目錄......................................Ⅲ
圖目錄....................................Ⅵ
表目錄....................................Ⅷ
符號說明..................................Ⅸ
第一章前言................................1
1-1 研究動機..............................1
1-2 文獻回顧..............................2
1-3 研究方向..............................4
第二章理論分析............................5
2-1 空氣標準奧圖循環......................5
2-2 奧圖循環..............................7
2-3 實際空氣燃料循環......................10
2-4 化學分析..............................16
2-4.1 化學特性............................17
2-4.2 化學反應式..........................21
第三章實驗設備與量測......................24
3-1 實驗配置..............................24
3-2 發電機與量測設備規格..................26
3-3 實驗設計..............................28
3-3.1 點火系統............................28
3-3.2 燃料喷入系統........................31
3-3.3 燃料控制系統........................33
3-3.4 空氣進氣量測系統....................39
3-3.5 功率量測器..........................41
3-4 實驗步驟..............................43
第四章引擎性能分析........................48
4-1 實驗結果..............................48
4-2 當量比和引擎性能關係................. 51
4-3 噴入正時和引擎性能關係................52
4-4 點火正時和引擎性能關係............... 55
4-5 比較各種燃料和氫氣引擎性能關係........57
4-6 廢氣組成..............................60
4-7 點火正時與實驗結果討論................61
4-8 燃料噴入壓力與實驗結果討論............63
4-9 控制電路與實驗結果討論................63
4-10 氫氣與汽油輸出功率比較...............66
第五章結論與未來展望......................68
5-1 結論..................................68
5-2 未來展望..............................69
參考文獻..................................71
附錄一168F-2 使用汽油下之引擎性能表.......76
附錄二現有燃料特性列表....................79
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