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

2017 Fiscal Year Final Research Report

• 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
• Keywords: 電気集塵 / コロナ放電 / グラディエント力

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.

Free Research Field

電気工学、反応性プラズマ科学