| 研究生: |
李宥良 LI, You-Liang |
|---|---|
| 論文名稱: |
經磁化處理之Jet A-1於旋流燃燒室中的燃燒行為研究 Combustion Behavior of Jet A-1 in a Swirler Combustor After Magnetic Treatment |
| 指導教授: |
王偉成
Wang, Wei-Cheng |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 航空太空工程學系 Department of Aeronautics & Astronautics |
| 論文出版年: | 2025 |
| 畢業學年度: | 113 |
| 語文別: | 英文 |
| 論文頁數: | 63 |
| 中文關鍵詞: | Jet A-1 、OH*化學螢光 、雷射激發白熾光 、磁化處理 、旋流燃燒室 |
| 外文關鍵詞: | Jet A-1, OH* chemiluminescence, Laser Induced Incandescence, Magnetic treatment, The swirler combustor |
| 相關次數: | 點閱:13 下載:0 |
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將磁化處理應用於提升燃燒效率,已在許多文獻中被證實其成效並展現其潛力,然而鮮少文獻針對磁場及燃油間作用的機制進行討論。為了解磁化處理於燃燒領域中的機制並探討其影響,此研究分為三個部分,分別為:吸收光譜、黏度以及燃燒行為,對磁化處理過後之燃料進行實驗分析。
在吸收光譜的分析中,選用結構簡單的碳氫化合物,正己烷」 作為測試對象,透過傅立葉轉換紅外光譜儀(FT-IR)觀察其紅外光吸收特性。結果顯示,經磁化處理後的己烷」在正R-CH₂-R out-of-phase stretch 與正R-CH₃ in-phase stretch 振動模式上出現變化。在黏度實驗部分,將傳統航空燃料Jet A-1至於磁場中進行預處理,並探討其黏度的差異。結果顯示,經磁化處理後的燃料黏度降低約2.7%,並在約600秒後逐漸恢復至初始值。
在燃燒行為方面,燃燒經磁化處理過後之Jet A-1,,其OH自由基強度提升且分布較均勻,與此同時在煙灰體積分率及排放濃度方面也顯著降低,特別是在當量比1.4時比較不同旋流器條件,一氧化碳濃度可下降達50%。
本研究透過實驗方法對磁化處理機制進行解釋,並在實際燃燒條件下驗證此技術的效果,為磁化處理技術的應用領域填補了空缺。
The applications of the magnetic treatment to enhance the fuel performance have shown their potential in some studies. However, only a small amount of research discussed the mechanism of this phenomenon. To make a comprehensive experimental investigation on the magnetic treatment, this study was separated into three parts: the absorption spectrum, the viscosity, and the combustion behaviors to examine the magnetic treatment.
In the absorption spectrum part, n-hexane, a simple hydrocarbon, was tested in the Fourier Transform Infrared Spectrometer, and the treated sample showed the vibration mode change in the “R-CH2-R out-of-phase stretch” and “R-CH3 in-phase stretch” modes. And the conventional aviation fuel, Jet A-1, was applied in studying the viscosity and combustion behaviors change in this study. The viscosity of magnetic-treated fuel reported a 2.7% viscosity reduction compared to the untreated sample, and takes around 600 seconds to recover to the initial value. For the combustion behavior changes after magnetic treatment, the OH radical showed a higher intensity and was distributed in a more homogeneous form, and the soot volume fraction and emissions were performed at a lower level, especially the CO concentration decreased to 50% at an equivalence ratio equal to 1.4 with different swirlers.
The results of this study provide an explanation of the magnetic treatment mechanism by experimental method, and prove the effects of the magnetic treatment by applying this technology in the realistic combustion condition, filling a vacancy in the magnetic treatment domain.
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校內:2030-08-08公開