跳到主要內容

臺灣博碩士論文加值系統

(18.97.14.82) 您好!臺灣時間:2025/02/19 09:20
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果 :::

詳目顯示

: 
twitterline
研究生:陳尚文
研究生(外文):CHEN,SHUNG-WEN
論文名稱:W/O乳化柴油液滴在懸浮錐形座之微爆行為研究
論文名稱(外文):Micro-explosions of W/O emulsion diesel fuel drops heated in a conical floating seat
指導教授:林黎柏
指導教授(外文):Lin,Li-Po
學位類別:碩士
校院名稱:南台科技大學
系所名稱:能源工程研究所
學門:環境保護學門
學類:環境資源學類
論文種類:學術論文
論文出版年:101
畢業學年度:100
語文別:中文
論文頁數:62
中文關鍵詞:乳化燃料液滴微爆現象含水比例
外文關鍵詞:W/O emulsion dropmicroexplosionwater content
相關次數:
  • 被引用被引用:0
  • 點閱點閱:182
  • 評分評分:
  • 下載下載:9
  • 收藏至我的研究室書目清單書目收藏:0
本研究根據不同的液滴粒徑大小以及不同含水量(10%、20%、30%),在Leidenfront temperature(600℃)以上之環境溫度,藉由高速攝影機拍攝W/O乳化液滴在錐形漂浮座以及煙囪式懸吊液滴這兩種設備,比較W/O乳化液滴在此兩種設備的蒸發與微爆現象之差異,主要是觀察W/O乳化液滴進入加熱環境到噴發、微爆歷程之變化及量測發生噴發與微爆啟始時間。
由於W/O乳化液滴的微爆現象為隨機發生,所以本研究以統計的方式將不同含水比例、粒徑之微爆啟始時間繪出時間分布,並且分析實驗結果。在實驗結果發現W/O柴油乳化液滴之含水比例愈高,則愈會使噴發啟始時間與總微爆啟始時間延遲,愈可能發生無噴發直接微爆現象;乳化液滴隨著粒徑愈大噴發啟始時間、總微爆啟始時間愈長。
Single W/O emulsion drops were heated in the conical drop floater and the drop suspension chamber to observe their microexplosion behaviors. The heating environment was above 600 degree Celsius. Various drop diameters with 10%, 20% or 30% of water in oil were tested. The objective was to compare the characteristics of microexplosion, such as waiting time to puffing, waiting time to microexplosion, and microexplosion probability, when the drop was heated in different surroundings. Microexplosions occurred randomly and must be plotted in the form of distribution function with the parameters of water content and drop diameter. The results showed that as the water content of the W/O emusion drops increased, the waiting time to puffing and waiting time to microexplosion increased, and the probability for microexplosion with puffing increased. As the drop diameter increased, the waiting times to puffing and microexplosion both increased.
摘要 iv
英文摘要 v
誌謝 vi
目次 vii
表目錄 viii
圖目錄 xi
第一章 緒論 1
1.1 前言 2
1.2 文獻回顧 2
1.2.1 自由飛行液滴法 2
1.2.2 懸吊液滴法 3
1.3 研究目的 4
第二章 實驗設備與步驟 5
2.1 液滴漂浮座本體 5
2.2 煙囪觀察室本體 5
2.3 液滴產生系統 6
2.4 加熱系統 6
2.5 溫度量測系統 7
2.6 觀測系統 7
2.7 實驗流體 7
2.8 實驗步驟 8
2.8.1 錐形漂浮座之實驗步驟 8
2.8.2 煙囪式懸吊之實驗步驟 8
2.9 實驗方法 10




第三章 實驗結果與討論 11
3.1 噴發現象 11
3.2 微爆現象 11
3.3 噴發微爆機率 12
3.4 噴發啟始時間 13
3.5 總微爆啟始時間 14
3.6 不同粒徑之噴發與總微爆啟始時間分布 15
3.7 噴發啟始時間與總微爆啟始時間關係 16
第四章 結論 17
參考文獻 18
符號彙編 19
1. J. C. Lasheras, A. C. Fernandez-Pello and F. L. Dryer, “ Initial observation on the free droplet combustion characteristics of water-in-fuel emulsions”, Combust Sci Technol, Vol. 21, 1979,pp. 1-14.
2.C. H. Wang, and C. K. Law, “Microexplosion of Fuel Droplets under High Pressure”, Combustion and Flame, Vol. 59, 1985, pp. 53-62.
3.C. H. Wang, and J. T. Chen, “An Experimental Investigation of the Burning Characteristics of Water-Oil Emulsions”, Int. Comm. Heat Mass Transfer, Vol. 23, 1996, pp. 823-834.
4.M. Tsue, T. Kadota, D. Segawa, and H. Yamasaki, “Statistical analysis on onset of microexplosion for an emulsion droplet”, 26th symposium (International) on combustion, The combustion institute, 1996, pp. 1629
5.M. Tsue, D. Segawa, T. Kadota, H. Yamasaki, “Observation of sooting behavior in an emulsion droplet flame by planer laser light scattering in microgravity”, Proceedings of the 26th Symposium (International) on Combustion, 1996, pp. 1251–8.
6.M. Tsue, H. Yamasaki, T. Kadota, D. Segawa, “Effect of gravity on onset of microexplosion for an oil-in-water emulsion droplet”, Proceedings of the 27th Symposium (International) on Combustion, 1998, pp. 2587-93.
7.D. Segwa, H. Yamasaki, T. Kadota, H. Tanaka, H. Enomoto, and M. Tsue, “Water-Coalescence in An Oil-in-Water Emulsion Droplet Burning Under Microgravity”, Proceedings of the Combustion Institute, Vol. 28, 2000, pp. 985-990.
8.T. Kadota, H. Yamasaki, “Recent advances in the combustion of water fuel emulsion”, Progress in Energy and Combustion Science, Vol. 28, 2002, pp.385-404.
9.D. Tarlet, J. Bellettre, M. Tazerout, C. Rahmouni, “Prediction of micro-explosion delay of emulsified fuel droplets”, International Journal of Thermal Sciences, Vol. 48, 2009, pp. 449-460.
10.S. R. Gollahalli, “An experimental study of the combustion of unsupported drops of residual oils and emulsions”, Combust. Sci. Tech., Vol. 19, 1979, pp. 245-250.
11.H. Watanabe, Y. Matsushita, H. Aoki, T. Miura, “Numerical simulation of emulsified fuel spray combustion with puffing and micro-explosion”, Combustion and Flame, Vol.157, pp. 839-852, 2010.
連結至畢業學校之論文網頁點我開啟連結
註: 此連結為研究生畢業學校所提供,不一定有電子全文可供下載,若連結有誤,請點選上方之〝勘誤回報〞功能,我們會盡快修正,謝謝!
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top