脱臭・集じんの同時処理が可能な空気清浄機の開発 Development of New Electric Air Cleaner for Controlling Particulates and Odors

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Recent concerns about environmental protection encourage the use of compact indoor air cleaners, therefore, various types of electrostatic precipitators (ESPs) have been developed. Although a wide range of airborne particles such as dust can be collected effectively with an ordinary ESP using a positive DC corona, it is difficult to remove gaseous compounds such as tobacco smoke which consists of submicron particles and gaseous matters with an offensive odor. In the present study, we investigated the collection of submicron particles using a commercial ESP and the decomposition of acetaldehyde (CH<SUB>3</SUB>CHO) using the nonthermal plasma reactors since the offensive odor of tobacco smoke is caused mainly by acetaldehyde molecules. For an ESP, we evaluated the particle-size dependent collection efficiency using monodispersed aerosol because little investigation has been conducted in this area. For acetaldehyde decomposition, more than 90% of decomposition efficiency was obtained with the use of nonthermal plasma under dry condition. However, the decomposition deteriorated under humidified condition. Higher collection efficiency was achieved with a particle size of 0.6 μm than that of 0.3 μm although the overall collection efficiency exceeded 99%. The combination of ESP and nonthermal plasma technologies leads to the breakthrough of conventional indoor electric air cleaner technology.

収録刊行物

  • エアロゾル研究 = Journal of aerosol research  

    エアロゾル研究 = Journal of aerosol research 15(2), 116-123, 2000-06-20 

    日本エアロゾル学会

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各種コード

  • NII論文ID(NAID)
    10004668049
  • NII書誌ID(NCID)
    AN10041511
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09122834
  • NDL 記事登録ID
    5381501
  • NDL 雑誌分類
    ZP5(科学技術--化学・化学工業--化学工学)
  • NDL 請求記号
    Z17-1062
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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