請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/46297
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 黃振康 | |
dc.contributor.author | Yu-Yi Chen | en |
dc.contributor.author | 陳宥懿 | zh_TW |
dc.date.accessioned | 2021-06-15T05:02:15Z | - |
dc.date.available | 2013-08-22 | |
dc.date.copyright | 2011-08-22 | |
dc.date.issued | 2011 | |
dc.date.submitted | 2011-08-17 | |
dc.identifier.citation | 行政院環保署。2006。室內空氣污染物。台北:行政院環保署。網址:http://aqp.epa.gov.tw/iaq/page1-3.htm。上網日期:2010-10-08。
余國賓。2006。以紫外光/臭氧程序增進光觸媒對室內揮發有機物去除效率之研究。博士論文。台北:國立台灣大學環境工程學研究所。 張嘉麟。2009。空氣清淨技術與應用之研究。碩士論文。台北:國立臺北科技大學機電整合研究所。 葉純宜、林明瀅、陳小泥、王復德。2005。紫外線殺菌效能探討。感染控制雜誌 15(5) 293-300。 劉卓文、林鴻儒、陳宣志、陳俊傑。2005。門診個案報告-紫外線輻射探討。基 層醫學 20(7) 174-177。 Alberici, R.M. and W.F. Jardim. 1997. Photocatalytic destruction of VOCs in the gas-phase using titanium dioxide. Applied Catalysis B: Environmental. 14(1-2):55-68. Chan, C.W., J.P.K. Seville, X.F. Fan, and J. Baeyens. 2009. Particle Motion in CFB Cyclones as Observed By Positron Emission Particle Tracking. Industrial & Engineering Chemistry Research. 48(1): 253-261. Choi, W. 2001. Investigation on TiO2-coated optical fibers for gas-phase photocatalytic oxidation of acetone. Applied Catalysis B: Environmental. 31(3): 209-220. Daniels, S.L. 2002. 'On the ionization of air for removal of noxious effluvia' (Air ionization of indoor environments for control of volatile and particulate contaminants with nonthermal plasmas generated by dielectric-barrier discharge). Ieee Transactions on Plasma Science. 30(4): 1471-1481. Fox, M.A. and M.T. Dulay. 1993. Heterogeneous photocatalysis. Chemical Reviews. 93(1): 341-357. Ghasemi, N., M. Sohrabi, M. Khosravi, A.S. Mujumdar, and M. Goodarzi. 2010. CFD simulation of solid-liquid flow in a two impinging streams cyclone reactor: Prediction of mean residence time and holdup of solid particles. Chemical Engineering and Processing: Process Intensification. 49(12): 1277-1283. Green, C.F. 2002. The use of ultraviolet germicidal irradiation (UVGI) in disinfection of airborne bacteria. Environmental Engineering and Policy. 3(1): 101-107. Hubbard, H.F. 2005. Effects of an ozone-generating air purifier on indoor secondary particles in three residential dwellings. Indoor Air. 15(6): 432-444. Liang, W.J., J. Li, and Y.Q. Jin. 2010. Photocatalytic degradation of gaseous acetone, toluene, and p-xylene using a TiO2 thin film. Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering. 45(11): 1384-1390. Molhave, L., G. Clausen, B. Berglund, J. De Ceaurriz, A. Kettrup, T. Lindvall, M. Maroni, A.C. Pickering, U. Risse, H. Rothweiler, B. Seifert, and M. Younes. 1997. Total Volatile Organic Compounds (TVOC) in Indoor Air Quality Investigations*. Indoor Air. 7(4): 225-240. Mohseni, M. and A. David. 2003. Gas phase vinyl chloride (VC) oxidation using TiO2-based photocatalysis. Applied Catalysis B: Environmental. 46(2): 219-228. Munoz, A. 2007. Computational fluid dynamics for predicting performance of ultraviolet disinfection–sensitivity to particle tracking inputs. Journal of Environmental Engineering and Science. 6(3): 285-301. Noakes, C.J., P.A. Sleigh, L.A. Fletcher, and C.B. Beggs. 2006. Use of CFD modelling to optimise the design of upper-room UVGI disinfection systems for ventilated rooms. Indoor and Built Environment. 15(4): 347-356. Ollis, D.F. 2000. Photocatalytic purification and remediation of contaminated air and water. Comptes Rendus de l'Academie des Sciences Series I Mathematics. 3(6): 405-411. Pengyi, Z., L. Fuyan, Y. Gang, C. Qing, and Z. Wanpeng. 2003. A comparative study on decomposition of gaseous toluene by O3/UV, TiO2/UV and O3/TiO2/UV. Journal of Photochemistry and Photobiology A: Chemistry. 156(1-3): 189-194. Rajeshwar, K. 1995. Photoelectrochemistry and the environment. Journal of Applied Electrochemistry. 25(12): 1067-1082. Rezaee, A., G.H. Pourtaghi, A. Khavanin, R.S. Mamoory, M.T. Ghaneian, and H. Godini. 2008. Photocatalytic decomposition of gaseous toluene by TiO2 nanoparticles coated on activated carbon. IranianJournal of Environmental Health Science & Engineering. 5(4): 305-310. Shifu, C., C. Xueli, T. Yaowu, and Z. Mengyue. 1998. Photocatalytic degradation of trace gaseous acetone and acetaldehyde using TiO2 supported on fiberglass cloth. Journal of Chemical Technology & Biotechnology. 73(3): 264-268. Wright,N.G., and D.M. Hargreaves. 2001. The use of CFD in the evaluation of UV treatment systems. Journal of Hydroinformatics. 3(2):59-70. Vincent, G., P.M. Marquaire, and O. Zahraa. 2008. Abatement of volatile organic compounds using an annular photocatalytic reactor: Study of gaseous acetone. Journal of Photochemistry and Photobiology A: Chemistry. 197(2-3): 177-189. Zhang, M., T. An, J. Fu, G. Sheng, X. Wang, X. Hu, and X. Ding. 2006. Photocatalytic degradation of mixed gaseous carbonyl compounds at low level on adsorptive TiO2/SiO2 photocatalyst using a fluidized bed reactor. Chemosphere. 64(3): 423-431. Zhang, Y., R. Yang, and R. Zhao. 2003. A model for analyzing the performance of photocatalytic air cleaner in removing volatile organic compounds. Atmospheric Environment. 37(24): 3395-3399. Zhao, J. and X. Yang. 2003. Photocatalytic oxidation for indoor air purification: a literature review. Building and Environment. 38(5): 645-654. DWC. Important variable for successful disinfection. DecRen Water Consult. Available at:http://www.dwc-water.com/technologies/uv-disinfection/about-uv-disinfection/index.html. Accessed 20 April 2010. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/46297 | - |
dc.description.abstract | 近年來室內空氣品質逐漸備受重視,本研究之目的為建立兩款新型空氣清淨機,移除特定的空氣污染物,清淨原理分別為光觸媒清淨機制以及紫外線殺菌機制。
光觸媒空氣清淨機制係以波長365 nm或254 nm的紫外燈管作為光源,照射在沾附二氧化鈦的保麗龍球上,產生光觸媒催化反應;將空氣清淨機擺放於氣體採樣箱內實驗,並以直讀式儀器偵測濃度多寡;探究光觸媒反應機制對於丙酮初始濃度750 ppm、500 ppm和250 ppm之丙酮降解率,並與傳統的平面式濾網比較清淨效能之優劣。實驗結果可得,在紫外線波長365 nm且基材沾附約1.0 g的二氧化鈦,丙酮初始濃度750 ppm的情況下,承裝體積100 ml的保麗龍球於實驗兩小時後有4.8%之降解率,優於承裝體積60 ml的保麗龍球3.9%以及濾網2.1%;氣流於單次循環將流量降低時,丙酮初始濃度750 ppm且使用波長254 nm的紫外線燈管實驗兩小時後,平均降解率可達30.0%。 紫外線清淨裝置係利用旋風分離筒內架設波長254 nm的殺菌燈管,設計理念為增加污染氣體於裝置內之滯留時間。透過計算流體力學軟體分析氣流於腔體之流動情形以及滯留時間,模擬結果可知,設定旋風筒入口流量60 lpm且網格數463239,4、8以及16條軌跡線平均的滯留時間分別為6.4、5.7以及5.6秒。除了使用電腦模擬滯留時間外,本實驗也進行紫外線燈管的強度測試,建立一測量燈管強度平台,開啟燈管72小時測試光衰減情形,光強度之平均值3.81 mW/cm2,標準差為0.0247 mW/cm2,紫外線燈管強度值穩定且光源於燈管中央位置具有最高之光強度。 | zh_TW |
dc.description.abstract | Indoor air quality is much more important in recent years. The purpose of this study is to set up two novel air-cleaning devices to purify specific air pollutants. The principles of air-cleaning device are photocatalysis and ultraviolet germicidal irradiation separately.
In photocatalyst study, styrofoam balls coated by TiO2 were illuminated by ultraviolet. The wavelength of ultraviolet were 254 nm and 365 nm separately. Air-cleaning device put in sampling chamber for testing process. Air pollutant was detected by direct reading instrument. However, the acetone degradation rate of photocatalysis in initial concentrations 750 ppm, 500 ppm and 250 ppm were investigated. Besides, the efficiency was compared with filter. The results showed that volume 100 ml styrofoam balls had the highest degradation efficiency were 4.8% for acetone which was better than volume 60 ml styrofoam balls 3.9% and filter 2.1% in ultraviolet wavelength 365 nm condition. The results showed that average acetone degradation rate was 30% in lower flow rate. Besides, the acetone initial concentration was 750 ppm in single circulation method and ultraviolet wavelength 254 nm conditions. In ultraviolet germicidal irradiated study, a cyclone was installed with a 254 nm germicidial lamp. Furthermore, the residence time and the trajectories in device were simulated from computational fluid dynamics software. Besides, the volume flow rate was 60 lpm in cyclone entrance. The results showed that in 4、8 and 16 trajectories were 6.4 s, 5.7 s and 5.6 s in mesh number of 463239. In this study, measuring platform was set up to investigate the ultraviolet light conditions and intensities. The results showed that the average light intensity was 3.81 mW/cm2 in the72 hours of usage. Besides, the highest light intensity was concentrated on central of lamp. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T05:02:15Z (GMT). No. of bitstreams: 1 ntu-100-R98631032-1.pdf: 5795135 bytes, checksum: 077522ef773cd908142d5b01c2219de8 (MD5) Previous issue date: 2011 | en |
dc.description.tableofcontents | 誌謝………………………………………………………………………………………i
摘要……………………………………………………………………………………...ii Abstract…………………………………………………………………………………iii 目錄……………………………………………………………………………………...v 圖目錄………………………………………………………………………………......ix 表目錄………………………………………………………………………………....xiv 第一章 前言………………………………………………………………………...1 1.1 研究背景………………………………………………………………...1 1.1.1 室內空氣品質……………………………………………………...1 1.1.2 室內空氣污染物…………………………………………………...2 1.1.3 空氣清淨技術……………………………………………………...3 1.2 研究動機與目的………………………………………………………...4 1.3 本文架構………………………………………………………………...6 第二章 文獻探討…………………………………………………………………...7 2.1 光觸媒空氣清淨技術…………………………………………………...7 2.1.1 光觸媒催化反應原理……………………………………………...7 2.1.2 揮發性有機物種類………………………………………………...9 2.1.3 光觸媒去除氣相揮發有機物之相關研究……………………….10 2.1.4 影響光觸媒效率之參數………………………………………….16 2.2 紫外線殺菌空氣清淨機制…………………………………………….19 2.2.1 紫外線殺菌原理………………………………………………….19 2.2.2 微生物與紫外線之關係………………………………………….19 2.2.3 計算流體力學軟體應用於UVGI………………………………...20 2.2.4 旋風分離筒及其CFD分析………………………………………25 第三章 研究設備與方法………………………………………………………….27 3.1 光觸媒空氣清淨實驗………………………………………………….27 3.1.1 清淨裝置與設計理念…………………………………………….27 3.1.2 實驗材料………………………………………………………….28 3.1.3 觸媒材料備製…………………………………………………….30 3.1.4 實驗系統與設備………………………………………………….31 3.1.5 數據分析………………………………………………………….36 3.1.6 氣體採樣箱之測漏與空白實驗………………………………….36 3.1.7 實驗步驟與方法………………………………………………….37 3.1.8 氣流單次循環的空氣清淨方式………………………………….39 3.1.9 改變觸媒表面電子數並探討光觸媒清淨效率………………….39 3.1.10 增加燈管數目並探討光強度改變之影響……………………….40 3.1.11 實驗方法………………………………………………………….40 3.2 紫外線空氣清淨實驗………………………………………………….43 3.2.1 清淨裝置與設計理念…………………………………………….43 3.2.2 紫外線殺菌實驗系統…………………………………………….44 3.2.3 分析步驟與方法………………………………………………….46 3.2.4 結果處理………………………………………………………….47 3.3 紫外線殺菌裝置實場效能測試……………………………………….49 3.3.1 實驗設備與採樣裝置…………………………………………….49 3.3.2 實際環境參數設定……………………………………………….50 3.3.3 分析方法與採樣步驟…………………………………………….50 3.3.4 結果處理………………………………………………………….51 3.4 旋風分離筒之模型與滯留時間分析………………………………….52 3.5 紫外線光強度測試…………………………………………………….54 3.5.1 光強度測試裝置………………………………………………….55 3.5.2 光強度衰減實驗方法…………………………………………….55 3.5.3 光強度衰減測試結果…………………………………………….56 第四章 結果與討論……………………………………………………………….58 4.1 光觸媒去除丙酮揮發有機物實驗…………………………………….58 4.1.1 氣流正常循環於清淨裝置內之實驗結果………………………58 4.1.1.1 光波長365 nm/TiO2 sol. (100% anatase)對丙酮之移除效果..……………………………………………………………………...58 4.1.1.2 光波長365 nm/TiO2 sol. (80% anatase+20% rutile)對丙酮之移除效果……………………………………………………………….60 4.1.1.3 光波長365 nm/增加濾網沾附TiO2 sol. (80% anatase+20% rutile)重量對丙酮之移除效果………………………………………...62 4.1.1.4 光波長254 nm/TiO2 sol. (80% anatase+20% rutile)對丙酮之移除效果……………………………………………………………….63 4.1.1.5 光波長254 nm/活性碳濾網沾附TiO2 sol. (80% anatase+20% rutile)對丙酮之移除效果……………………………………………...72 4.1.2 氣流採用單次循環方式之實驗結果…………………………….75 4.1.2.1 氣流單次循環/光波長254 nm/TiO2 sol. (100% anatase)對丙酮之移除效果………………………………………………………….75 4.1.2.2 氣流單次循環/光波長254 nm/TiO2 sol. (80% anatase+20% rutile)對丙酮之移除效果……………………………………………...78 4.1.2.3 降低流量/氣流單次循環/光波長254 nm/不織布濾網沾附TiO2 sol. (80% anatase+20% rutile)對丙酮之移除效果………………81 4.1.2.4 改變表面電子數/氣流單次循環/光波長254 nm/圓形鋁片TiO2 sol. (80% anatase+20% rutile)對丙酮之移除效果…………........84 4.1.2.5 使用兩支光波長254 nm的紫外線燈管/氣流單次循環/不織布濾網沾附TiO2 sol. (80% anatase+20% rutile)對丙酮之移除效果...85 4.1.3 光觸媒實驗結果整理與比較…………………………………….90 4.2 紫外線殺菌裝置效能探討…………………………………………….97 4.2.1 生物氣膠實地採樣之結果……………………………………….97 4.2.2 實地使用紫外線殺菌裝置之結果……………………………….98 4.2.3 旋風分離筒滯留時間………………………………………….....99 4.2.3.1 筒內流動情形……………………………………………….99 4.2.4 滯留時間分析…………………………………………………...101 4.2.5 模型繪製之改善………………………………………………...101 第五章 結論與建議……………………………………………………………...103 5.1 結論…………………………………………………………………...103 5.1.1 光觸媒清淨效果探討…………………………………………...103 5.1.2 紫外線清淨裝置效能分析……………………………………...104 5.2 建議…………………………………………………………………...104 參考文獻 …………………………………………………………………………….105 | |
dc.language.iso | zh-TW | |
dc.title | 研發兩款新型光觸媒和紫外線空氣清淨設計移除室內污染物 | zh_TW |
dc.title | Two Novel Air-Cleaning Designs for Removing Indoor Air Pollutants Using Photocatalytic Oxidation and Ultraviolet Germicidal Irradiation | en |
dc.type | Thesis | |
dc.date.schoolyear | 99-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 羅金翔,陳林祈 | |
dc.subject.keyword | 揮發有機氣體,光觸媒,二氧化鈦,紫外線殺菌法,滯留時間, | zh_TW |
dc.subject.keyword | volatile organic compounds,photocatalyst,TiO2,ultraviolet germicidal irradiation,residence time, | en |
dc.relation.page | 107 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2011-08-18 | |
dc.contributor.author-college | 生物資源暨農學院 | zh_TW |
dc.contributor.author-dept | 生物產業機電工程學研究所 | zh_TW |
顯示於系所單位: | 生物機電工程學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-100-1.pdf 目前未授權公開取用 | 5.66 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。