Repository logo
  • English
  • 中文
Log In
Have you forgotten your password?
  1. Home
  2. College of Engineering / 工學院
  3. Environmental Engineering / 環境工程學研究所
  4. Removal of Bioaerosols by Air Ionizer of Carbon Nanotubes
 
  • Details

Removal of Bioaerosols by Air Ionizer of Carbon Nanotubes

Date Issued
2008
Date
2008
Author(s)
Huang, Chien-Ping
URI
http://ntur.lib.ntu.edu.tw//handle/246246/181548
Abstract
The purpose of this study was to evaluate control efficiency on bioaerosols, including E.coli、B.subtilis、C.famata(Yeast)、P.citrinum, by using negative air ion (NAI) which was produced on carbon nanotubes (CNTs). The effects of relative humidity were investigated in this study. Also, it compared the generation of NAI at a concentration of 7×105-1.2×106 ions cm-3 in experimental chamber (9.32×10-2 m3) by negative electric discharge with different discharge voltage on CNTs needle and conventional stainless steel needle.he results showed that the higher concentration of NAI was produced under lower discharging voltage on CNTs needle, but unstable and the NAI concentration decreased with time compared with stainless steel needle. The control efficiency of bioaerosols increased with discharge voltage of stainless steel needle,but it is not significant on CNTs needle. In general, the order of control efficiency on bioaerosols by NAI is ηB.Subtilis ≒ ηE.Coli > ηYeast ≒ ηP.Citrinum. When NAI generated by stainless steel needle, the best control efficiency of E.coli and B.subtilis were found at RH=50%, and the control efficiency under RH=30% is better than that at RH=70%. The best control efficiency of C.famata(Yeast) and P.citrinum were obtained at RH=70%. However, when the NAI produced by carbon nanotubes needle to control bioaerosols, the effect of RH was not significant. The control efficiency of the bioaerosols on stainless steel needle was stable with time, but decreased for CNTs needle.
Subjects
Bioaerosol
Negative air ion(NAI)
Carbon nanotubes(CNTs)
Relative humidity
Type
thesis
File(s)
Loading...
Thumbnail Image
Name

ntu-97-R95541130-1.pdf

Size

23.53 KB

Format

Adobe PDF

Checksum

(MD5):5184f55c01c53560505a57670aea4911

臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of “NTU Repository” with “Academic Hub” to form NTU Scholars.

總館學科館員 (Main Library)
醫學圖書館學科館員 (Medical Library)
社會科學院辜振甫紀念圖書館學科館員 (Social Sciences Library)

開放取用是從使用者角度提升資訊取用性的社會運動,應用在學術研究上是透過將研究著作公開供使用者自由取閱,以促進學術傳播及因應期刊訂購費用逐年攀升。同時可加速研究發展、提升研究影響力,NTU Scholars即為本校的開放取用典藏(OA Archive)平台。(點選深入了解OA)

  • 請確認所上傳的全文是原創的內容,若該文件包含部分內容的版權非匯入者所有,或由第三方贊助與合作完成,請確認該版權所有者及第三方同意提供此授權。
    Please represent that the submission is your original work, and that you have the right to grant the rights to upload.
  • 若欲上傳已出版的全文電子檔,可使用Open policy finder網站查詢,以確認出版單位之版權政策。
    Please use Open policy finder to find a summary of permissions that are normally given as part of each publisher's copyright transfer agreement.
  • 網站簡介 (Quickstart Guide)
  • 使用手冊 (Instruction Manual)
  • 線上預約服務 (Booking Service)
  • 方案一:臺灣大學計算機中心帳號登入
    (With C&INC Email Account)
  • 方案二:ORCID帳號登入 (With ORCID)
  • 方案一:定期更新ORCID者,以ID匯入 (Search for identifier (ORCID))
  • 方案二:自行建檔 (Default mode Submission)
  • 方案三:學科館員協助匯入 (Email worklist to subject librarians)

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science