Suppression of abnormal reentrainment utilizing gradient force on a collection plate of electrostatic precipitator

• Project/Area Number: 15K13928
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Toyohashi University of Technology
• Principal Investigator: TAKASHIMA KAZUNORI 豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (60303707)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: 電気集塵 / コロナ放電 / グラディエント力 / 再飛散 / 沿面放電

Outline of Final Research Achievements

Fine particles can be collected by electrostatic precipitator (ESP) effectively with very low pressure drop compared with conventional mechanical filters. However particle re-entrainment occurs when the particles are conductive. In this study, feasibility studies on plasma oxidation of the particles collected by an ESP and on electrostatic adhesion of the particles utilizing gradient force are carried out.

Experimental results show that collected diesel PM was oxidized by generating surface discharge on the collection plate of an ESP. It was shown that removal efficiency of the ESP was improved when a collection plate equipped with a metal mesh on it was used.

Research Products

• [Journal Article] Two-stage electrostatic precipitator using induction charging (2018)
  • Author(s): Takashima Kazunori、Kohno Hiromu、Katatani Atsushi、Kurita Hirofumi、Mizuno Akira
  • Journal Title: Journal of Physics D: Applied Physics Volume: 51 Issue: 17 Pages: 174002-174002
  • DOI: 10.1088/1361-6463/aab4bf
  • Peer Reviewed
• [Presentation] 誘導帯電を用いた微粒子の捕集技術の検討 (2017)
  • Author(s): 河野大夢, 栗田弘史, 高島和則, 水野彰
  • Organizer: 2017年度静電気学会春期講演会
  • Place of Presentation: 東京大学、東京
• [Presentation] Possible use of induction charging for electrostatic precipitation (2016)
  • Author(s): A.Mizuno, A. Katatani, H. Kouno, Y. Yamanaka,T. Ota, H. Kurita, and K. Takashima
  • Organizer: the 10th Conference of the French Society of Electrostatics
  • Place of Presentation: Poitiers University Poitiers, France
  • Year and Date: 2016-08-29
  • Int'l Joint Research
• [Presentation] Application of atmospheric pressure plasma in environmental remediation and medicine (2016)
  • Author(s): K. Takashima
  • Organizer: 2016 Electrostatics Joint Conference
  • Place of Presentation: Purdue University, West Lafayette, IN, USA
  • Year and Date: 2016-06-13
  • Int'l Joint Research / Invited
• [Presentation] Electrostatic precipitation of Diesel PM at reduced gas temperature (2015)
  • Author(s): M. Takasaki, T. Kubota, M. Hayashi, H. Kurita, K. Takashima and A. Mizuno
  • Organizer: IEEE 2015 Industry Applications Society Annual Meeting
  • Place of Presentation: Dallas, Texas, USA
  • Year and Date: 2015-10-18
  • Int'l Joint Research