DC 欄位 | 值 | 語言 |
dc.contributor.author | 李慧梅 | zh_TW |
dc.creator | 李慧梅 | - |
dc.date | 2002-07-31 | zh_TW |
dc.date.accessioned | 2006-07-26T02:50:10Z | - |
dc.date.accessioned | 2018-06-28T23:24:45Z | - |
dc.date.available | 2006-07-26T02:50:10Z | - |
dc.date.available | 2018-06-28T23:24:45Z | - |
dc.date.issued | 2002-07-31 | - |
dc.identifier | 902211E002037 | en |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/22087 | - |
dc.description.abstract | 本計畫利用界面活性劑調理濾材,使
濾材成為帶電濾材提升對過濾效能,其中
分別利用陰離子(sodium dodecyl sulfate 與
sodium oleate)與陽離子界面活性劑(dimethyl
dioctadecylammonium bromide)使濾
材成為帶正電及負電之濾材。在探討濾材
之過濾效率時,分別針對不同之實驗變因
比較,如氣膠微粒之大小(0.05~0.5µm)、
氣膠微粒之帶電性(正電、負電及中性帶
電)及表面風速(5、10、15 cm/s)。比較
處理前後之濾材之過濾效率,以中性電荷
之氣膠微粒測試,表面處理界面活性劑之
濾材,其過濾效率較未處理之濾材約增加
20~30%,根據比較靜電吸引機制(庫倫力
與介電力),可以發現當表面處理界面活
性劑後,可使濾材表面帶電成為帶電濾材。 | zh_TW |
dc.description.abstract | In the study, the appropriate surfactants
were used to make the fibrous filter become
charged to increase the filtration efficiency.
The anionic surfactants (i.e., sodium dodecyl
sulfate and sodium oleate) and cationic
surfactant (i.e., dimethyl
dioctadecylammo-nium bromide) were used
to create the negative and positive
charged-medium filter, respectively. The
filtration efficiency of those filters was
investigated as function of particle size
(0.05-0.5 µm) and charge state (positive
charged, negative charged, and neutral) for
three face velocities (5, 10, and 15 cm/s). By
comparison, the filtration efficiency of the
treated fibrous filter has been shown to
increase 20-30% than no-treated fibrous filter
for neutral particles. The electrostatic particle
capture mechanisms were in addition to the
mechanical capture mechanism of the treated
fibrous filter. The results indicated that the
fibrous filter treated with surfactant become
the charged-medium filter. | en |
dc.format | application/pdf | en |
dc.format.extent | 133943 bytes | en |
dc.format.mimetype | application/pdf | en |
dc.language | zh-TW | zh_TW |
dc.language.iso | zh_TW | zh_TW |
dc.publisher | 臺北市:國立臺灣大學環境工程學研究所 | zh_TW |
dc.rights | 國立臺灣大學環境工程學研究所 | zh_TW |
dc.subject | 帶電濾材 | zh_TW |
dc.subject | 界面活性劑 | zh_TW |
dc.subject | 過濾效率 | zh_TW |
dc.subject | Charged-medium filter | en |
dc.subject | filtration efficiency | en |
dc.subject | surfactant | en |
dc.title | 帶電荷濾材對室內空氣過濾效率之影響 | zh_TW |
dc.title | The Influence of Charged-Medium Filter on the Filtration
Efficiency of Indoor Aerosol | en |
dc.type | report | en |
dc.identifier.uri.fulltext | http://ntur.lib.ntu.edu.tw/bitstream/246246/22087/1/902211E002037.pdf | - |
dc.coverage | 計畫年度:90;起迄日期:2001-08-01/2002-07-31 | zh_TW |
item.openairetype | report | - |
item.fulltext | with fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_93fc | - |
item.grantfulltext | open | - |
item.languageiso639-1 | zh_TW | - |
item.cerifentitytype | Publications | - |
crisitem.author.orcid | 0000-0002-2572-7287 | - |
顯示於: | 環境工程學研究所
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