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DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 黃振康(Cheng-Kang Huang) | |
dc.contributor.author | Chung-An Wen | en |
dc.contributor.author | 溫崇安 | zh_TW |
dc.date.accessioned | 2021-06-07T18:11:45Z | - |
dc.date.copyright | 2020-08-21 | |
dc.date.issued | 2020 | |
dc.date.submitted | 2020-08-12 | |
dc.identifier.citation | 楊奇儒. 2006. 低污染拜香研發: 拜香主要成分對拜香燃煙特徵之影響. Anderson, J. O., J. G. Thundiyil and A. Stolbach. 2012. Clearing the air: a review of the effects of particulate matter air pollution on human health. Journal of Medical Toxicology 8(2): 166-175. Bao, L., M. Musadiq, T. Kijima and K. Kenmochi. 2014. Influence of fibers on the dust dislodgement efficiency of bag filters. Textile Research Journal 84(7): 764-771. Chang, J.-S., P. A. Lawless and T. Yamamoto. 1991. Corona discharge processes. IEEE Transactions on plasma science 19(6): 1152-1166. Goldman, M., A. Goldman and R. Sigmond. 1985. The corona discharge, its properties and specific uses. Pure and Applied Chemistry 57(9): 1353-1362. Guo, B., J. Guo and A. Yu. 2014. Simulation of the electric field in wire-plate type electrostatic precipitators. Journal of electrostatics 72(4): 301-310. Hinds, W. C. 1999. Aerosol technology: properties, behavior, and measurement of airborne particles: John Wiley Sons. Jaworek, A., A. Krupa and T. Czech. 2007. Modern electrostatic devices and methods for exhaust gas cleaning: A brief review. Journal of electrostatics 65(3): 133-155. 64 Karunakaran, M., P. Sivakimar and N. Chira. 2019. Electrostatic precipitator in ash removal system: a comprehensive review. Int J Innov Technol Explor Eng 8(4S): 321-324. Katz, J. 1979. The Art of Electrostatic Precipitation. Precipitator Technology. Inc. Munhall, Pennsylvania. Kim, H.-J., B. Han, C. G. Woo and Y.-J. Kim. 2016. Ozone emission and electrical characteristics of ionizers with different electrode materials, numbers, and diameters. IEEE Transactions on Industry Applications 53(1): 459-465. Lu, Q., Z. Yang, C. Zheng, X. Li, C. Zhao, X. Xu, X. Gao, Z. Luo, M. Ni and K. Cen. 2016. Numerical simulation on the fine particle charging and transport behaviors in a wire-plate electrostatic precipitator. Advanced powder technology 27(5): 1905-1911. Lung, S.-C. C. and M.-C. Kao. 2003. Worshippers’ exposure to particulate matter in two temples in Taiwan. Journal of the Air Waste Management Association. 53: 130-135. Mayer-Schwinning, G. 1998. Wet ESPs, Status and Latest Developments in the Field of Aerosol Collection. 7th International Conference on Electrostatic Precipitation. Ning, Z., J. Podlinski, X. Shen, S. Li, S. Wang, P. Han and K. Yan. 2016. Electrode geometry optimization in wire-plate electrostatic precipitator and its impact on collection efficiency. Journal of electrostatics 80: 76-84. 65 Ogawa, A. 2010. Estimations of the maximum tangential velocity V θm in the vortex core region and also the mean rotational velocity V oi near the concave wall surface in the returned flow type cyclone dust collector. Journal of Thermal Science 19(6): 553-560. Said, H. A., H. Nouri and Y. Zebboudj. 2015. Effect of air flow on corona discharge in wire-to-plate electrostatic precipitator. Journal of electrostatics 73: 19-25. Theodore, L. 2008. Electrostatic precipitators in air pollution control equipment calculations, Wiley. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/16369 | - |
dc.description.abstract | 隨科技與網路的進步,人們待在室內的時間越來越長,因此室內空氣品質也更加地被重視。本研究針對空氣中的懸浮微粒來做探討,設計一靜電集塵裝置,以最小化尺寸為前提,探討各種幾何及操作參數對於空氣中微粒污染物的收集效率,找出最佳化的結果。 研究中建置線板式二階靜電集塵器,並將其分為充電區、過渡區及收集區。充電區測試不同的線極板極間距和線極數量的電流特性。將充電區長度定義為一單位長(1 X),過渡區與收集區分別以0、0.5、1倍長和1、2、3 倍長,並以53 cfm 和90 cfm的風量進行收集效率測試。最終得到之各區域操作及幾何參數分別為:充電區線板極間距7.5 mm,線極間距10 mm,操作電壓為10 kV;收集區操作電壓則為12 kV。此外結果顯示收集區尺寸 3 X 和 2 X 的收集效率表現沒有明顯區別,而過渡區的移除(0 X)對PM1收集效率影響最多達12%,但對於PM2.5和PM10的收集效率幾乎沒有影響。當過渡區和收集區分別為充電區0.5倍及2倍長時,對於PM1、PM2.5和PM10之20分鐘內收集效率均可達到90%以上。並以類似潔淨空氣輸出比率(Clean Air Delivery Rate, CADR)之計算方法推算靜電集塵器之效能。此外也將實驗中參數以白金漢π定理找出一無因次參數群作為實驗總結。 | zh_TW |
dc.description.abstract | Air pollution levels remain dangerously high in many parts of the world. People arise increasing concern to air quality. In this study, the electrostatic precipitator (ESP) was designed to remove the aerosol particles. The comprehensive investigation of operating parameters of ESP was carried out. In the experiment, Electrostatic Precipitator, the two-stage, wire-plate ESP was established, and it consisted of charger, transition zone and collector. The characteristic of corona current was tested by adjusting the pitch between corona electrode and collecting electrode and the number of corona electrode. The length of charger was defined as a unit X, and the experiments was conducted with different combinations with various transition zone lengths as 0, 0.5 , 1 X, the collector lengths as 1 , 2 ,3 X, and flow rates of 53 cfm and 90 cfm. Finally, the operating voltages and geometrical parameters showed a best combination of 7.5 mm between the corona electrodes and the collecting electrodes, 10 mm between corona electrodes, operating voltage of 10 kV in the charger, and operating voltage of 12 kV in the collector. The results of collecting rate of PM2.5 and PM10 indicated no significant difference with lengths of 3 X and 2 X of collector, or even without transition zone. However, the collecting rate was declined by up to 12% without transition zone. Moreover, the similar calculating way of clean air delivery rate (CADR) was conducted to quantify the performance of the ESP. In the end, the Buckingham π theorem was applied to find out the major dimensionless group of π1. | en |
dc.description.provenance | Made available in DSpace on 2021-06-07T18:11:45Z (GMT). No. of bitstreams: 1 U0001-2907202016332100.pdf: 6893252 bytes, checksum: 9cc76ce99aba05a890cc598c4b17c999 (MD5) Previous issue date: 2020 | en |
dc.description.tableofcontents | 致謝................................................................................................................................ ii 摘要................................................................................................................................. i Abstract .......................................................................................................................... ii 目錄.............................................................................................................................. iii 圖目錄........................................................................................................................... vi 表目錄........................................................................................................................... ix 第一章 緒論.................................................................................................................. 1 1.1 前言................................................................................................................. 1 1.2 研究動機......................................................................................................... 2 1.3 研究目的......................................................................................................... 4 第二章 文獻探討.......................................................................................................... 5 2.1 靜電集塵器基本原理..................................................................................... 5 2.1.1 電暈放電.............................................................................................. 5 2.1.2 微粒充電.............................................................................................. 7 2.2 靜電集塵器種類............................................................................................. 9 2.2.1 一階段、二階段靜電集塵器.............................................................. 9 2.2.2 乾、濕式靜電集塵器........................................................................ 10 2.2.3 平板式、圓筒式靜電集塵器............................................................ 10 2.3 線板式靜電集塵器....................................................................................... 11 2.3.1 電場模擬............................................................................................ 11 2.3.2 微粒的充電及運動行為模擬............................................................ 13 2.3.3 幾何參數對收集效率之影響............................................................ 15 2.3.4 氣流對於電暈放電之影響................................................................ 17 2.3.5 電極材料對電流特徵及臭氧排放之影響........................................ 18 2.4 拜香探討....................................................................................................... 20 2.5 白金漢π定理 .............................................................................................. 22 第三章 實驗設備與方法............................................................................................ 23 3.1 靜電集塵實驗系統....................................................................................... 23 3.2 靜電集塵器................................................................................................... 24 3.2.1 充電區................................................................................................ 25 3.2.2 過渡區................................................................................................ 29 3.3.3 收集區................................................................................................ 29 3.3 實驗設備....................................................................................................... 33 3.3.1 高壓電源供應器................................................................................ 33 3.3.2 高壓電衰退棒.................................................................................... 33 3.3.3 風扇.................................................................................................... 33 3.3.4 實驗微粒來源.................................................................................... 34 3.3.5 微粒採樣儀器.................................................................................... 34 3.3.6 手提式臭氧氣體分析儀.................................................................... 34 3.4靜電集塵實驗方法........................................................................................ 35 3.4.1 實驗流程............................................................................................ 35 3.4.2 實驗測試參數.................................................................................... 36 第四章 結果與討論.................................................................................................... 37 4.1 充電區電流特徵曲線................................................................................... 37 4.2 收集區收集效率........................................................................................... 41 4.3 不同幾何參數之收集效率........................................................................... 45 4.4 清淨效能評估............................................................................................... 55 4.5 無因次化分析............................................................................................... 58 第五章 結論與建議.................................................................................................... 61 5.1 結論............................................................................................................... 61 5.2 建議............................................................................................................... 62 參考文獻...................................................................................................................... 63 | |
dc.language.iso | zh-TW | |
dc.title | 靜電集塵器之參數探討-以室內線香燃燒為例 | zh_TW |
dc.title | Investigation of Operating Parameters of Electrostatic Precipitator by Using Indoor Incense Burning | en |
dc.type | Thesis | |
dc.date.schoolyear | 108-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 吳佩芝(Pei-Chih Wu),溫琮毅(Tsrong-Yi Wen) | |
dc.subject.keyword | 懸浮微粒,靜電集塵器,潔淨空氣輸出比率,白金漢π定理, | zh_TW |
dc.subject.keyword | electrostatic precipitator,aerosol particle,clean air delivery rate,Buckingham π theorem, | en |
dc.relation.page | 65 | |
dc.identifier.doi | 10.6342/NTU202002044 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2020-08-14 | |
dc.contributor.author-college | 生物資源暨農學院 | zh_TW |
dc.contributor.author-dept | 生物機電工程學系 | zh_TW |
顯示於系所單位: | 生物機電工程學系 |
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