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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 楊鏡堂(Jing-Tang Yang) | |
| dc.contributor.author | Jing-Wei Chen | en |
| dc.contributor.author | 陳靖瑋 | zh_TW |
| dc.date.accessioned | 2021-06-15T04:30:47Z | - |
| dc.date.available | 2012-08-22 | |
| dc.date.copyright | 2011-08-22 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-08-17 | |
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E., and Kompenhans, J., 1998, Particle Image Velocimetry, Springer, Berlin. Seitzman, J. M., Ungut, A., Paul, P. H., and Hanson, R. K., 1990, “Imaging and characterization of OH structures in a turbulent nonpremixed flame,” Twenty-Third Symposium (International) on Combustion, Combustion Institute, pp. 637-644. Schuller, T., Durox, D. and Candel, S., 2003, “Self-induced combustion oscillation of laminar premixed flames stabilized on annular burners,” Combustion and Flame, Vol. 135, pp. 525-537. Sahu, K. B., Kundu, A., Ganguly, R., and Datta, A., 2009, “Effects of fuel type and equivalence ratios on the flickering of triple flames,” Combustion and Flame, Vol. 156, pp. 484-493. Seffrin, F., and Fuest, F., 2010, “Flow field studies of a new series of turbulent premixed stratified flames,” Combustion and Flame, Vol. 157, pp. 384-396. Turns, S. R., 2000, An Introduction to Combustion, Concepts and Application, 2nd edition, McGraw-Hill International Editions. Wright, F. 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Yamamoto, K., Kato, S., Isobe, Y., Hayashi, N., and Yamashita, H., 2011, “Lifted flame structure of coannular jet flames in a triple port burner,” Proc. Combust. Inst., Vol. 33, pp. 1195-1201. 大塚哲二，1995，濃淡燃燒裝置，日本國特許廳公開特許公報，特開平7-253204。 黃木丈俊、藤生昭，1995，燃燒裝置，日本國特許廳公開特許公報，特開平7-151319。 楊鏡堂， 高智勇， 1999，對流衝擊型燃燒器，中華民國新型專利 第149086號 (專利權期間：1999/7/21~2010/6/28， 發證日期: 88/12/06; 國科會專題研究計畫編號：NSC-87-2212-E-007-034)。 孫泊寧， 1997，高負荷燃燒器之設計實作與火焰結構分析，國立清華大學動力機械工程學系碩士論文。 蔣淑卿， 2002，複合進氣道燃燒器之火焰結構研究中，國立清華大學動力機械工程學系碩士論文。 藍斌豪，2004，多向斜衝燃燒器之衝擊效應數值分析，國立清華大學動力機械工程學系碩士論文。 羅允成，2007，多環燃燒器中火焰交互作用及最佳性能設計，國立清華大學動力機械工程學系碩士論文。 阮文祺，2009，三環燃燒器搭配非單一當量比之貧油燃燒研究，國立清華大學動力機械工程學系碩士論文。 林泓瑋，2010，環形貧油火焰特性與注入空氣共伴流之影響，國立台灣大學機械工程學系碩士論文。 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45619 | - |
| dc.description.abstract | 本研究以高解析度之高速粒子影像測速儀(PIV)和化學螢光法(chemiluminescence)探討三股預混丙烷火焰與多尾流渦對間交互作用下特定自由基(C2*和CH*)之分佈特性，以具有特殊幾何結構的三環燃燒器作為實驗載具，透過量測不同當量比和出口流速下暫態燃燒流場速度和化學螢光強度的分佈驗證火焰特徵和解析火焰結構，進而歸納火焰局部反應強度與紊流強度之作用機制。實驗範圍內之火焰型態受當量比變化主導而具有火焰長度、化學螢光分佈和火焰面前緣不穩定性等三種特徵。在出口流速Uo = 1.5 m/s和當量比範圍0.6-1.6時，受到火焰傳播速度改變、火焰間預熱效應和火焰面前緣不穩定性影響，而形成巫師帽火焰、穩定中環火焰、焰尖振盪火焰和焰尖開口火焰等四種類型。
由於化學螢光峰值分佈隨當量比和出口流速變化，因此全域化學螢光強度可驗證火焰特徵受不同化學反應機制影響而改變反應位置與螢光分佈特性；另一方面，化學螢光強度可作為火焰反應區位置及火焰強度的指標，因此局部化學螢光強度分佈可反映流場結構與火焰強度間的交互作用關係。另外以高速PIV量測所得之連續瞬時速度場歸納出熱浮力效應主導流場結構的紊流特性，並發現紊流強度和全域火焰強度在貧油燃燒(Le > 1)時峰值分佈趨勢呈現正相關，而在富油燃燒(Le < 1)時峰值分佈趨勢則呈現負相關，代表在貧油和富油燃燒中不同狀況下，質量-熱擴散不穩定性具有主導影響化學螢光強度和速度場分佈的特性。本研究進一步以每秒1000張空間解析度達0.047 mm/pixel的同步PIV和CH*化學螢光法量測技術解析當量比1.6具有焰尖開口特徵的火焰，發現局部燃燒流場也具有相同趨勢。在受火焰面前緣不穩定性作用下，火焰強度隨渦度增加而遞減，而受弱渦度影響之火焰強度則較強。因此，由全域和局部燃燒流場中，兩者關係歸納出火焰前緣不穩定性(Le < 1)受到紊流作用下之火焰面特性及交互作用之機制。 | zh_TW |
| dc.description.provenance | Made available in DSpace on 2021-06-15T04:30:47Z (GMT). No. of bitstreams: 1 ntu-100-R98522306-1.pdf: 5402424 bytes, checksum: a2844ba692296db505bb089303059c71 (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | 口試委員會審定書 i
誌謝 ii 摘要 iii Abstract iv 目錄 v 圖表目錄 viii 符號說明 xiv 第一章 前言 1 1-1 研究背景 1 1-2 研究動機與願景 2 第二章 文獻回顧 4 2-1 火焰面(flame front)特性 4 2-1-1 自由基空間分佈特性 7 2-1-2 燃燒強度 8 2-2火焰交互作用 10 2-2-1 火焰融合及傳輸現象 10 2-2-2 火焰與小尺度渦旋交互作用 12 2-3 流場不穩定性 13 2-3-1 火焰區特性 13 2-3-1-1 熱量與質量擴散效應 15 2-3-1-2 應變率(strain)與曲率(curvature) 16 第三章 研究方法 19 3-1 火焰型態 20 3-1-1 燃燒模式 20 3-1-2 燃料特性 21 3-1-3 當量比 21 3-1-4 實驗設備配置 22 3-1-5 燃燒器構造 22 3-1-6 流量控制系統 23 3-1-7 影像擷取系統 24 3-2 PIV流場 25 3-2-1 PIV原理簡介 25 3-2-2 PIV實驗設備系統 26 3-2-2-1 追蹤粒子 27 3-2-2-2 雷射系統 27 3-2-2-3 透鏡組 28 3-2-2-4 高速攝影機與鏡頭 28 3-2-3 PIV影像流場處理 30 3-3 化學螢光 32 3-3-1 實驗配置和高速攝影機 32 3-3-2 光學窄頻濾鏡 34 3-4 PIV和化學螢光同步量測實驗設置 34 第四章 結果與討論 36 4-1 三環丙烷火焰型態 36 4-1-1 出口流速1.5 m/s之不同當量比火焰型態探討 42 4-2 火焰暫態強度分佈 43 4-2-1 化學螢光與當量比和出口流速之關係 93 4-2-2 化學螢光強度空間分佈特性 94 4-2-3 出口速度1.5 m/s 之暫態強度特性 109 4-3 燃燒流場 110 4-4 化學螢光強度和紊流強度分析 120 4-5 局部燃燒流場交互作用 121 第五章 結論和未來工作 124 參考文獻 128 甘梯圖 133 作者簡歷 134 | |
| dc.language.iso | zh-TW | |
| dc.subject | 火焰面前緣不穩定性 | zh_TW |
| dc.subject | 同步 | zh_TW |
| dc.subject | 粒子影像測速 | zh_TW |
| dc.subject | 化學螢光 | zh_TW |
| dc.subject | 火焰強度 | zh_TW |
| dc.subject | chemiluminescence | en |
| dc.subject | synchronization | en |
| dc.subject | flame front instability | en |
| dc.subject | flame intensity | en |
| dc.subject | PIV | en |
| dc.title | 三環丙烷火焰暫態反應強度與流場之交互作用研究 | zh_TW |
| dc.title | Investigation of interaction between propane flame tran-sient intensity and flow field in a triple-annular-burner | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 99-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 黃榮芳(Rong-Fung Huang),趙怡欽(Yei-Chin Chao),王興華(Ching-Hua Wang),潘國隆(Kuo-Long Pan),馬小康(Hsiao-Kan Ma) | |
| dc.subject.keyword | 同步,粒子影像測速,化學螢光,火焰強度,火焰面前緣不穩定性, | zh_TW |
| dc.subject.keyword | synchronization,PIV,chemiluminescence,flame intensity,flame front instability, | en |
| dc.relation.page | 135 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2011-08-17 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
| 顯示於系所單位： | 機械工程學系 | |
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