{"title":"Effect of collection efficiency and reducing ozone generation in an electrostatic precipitator with knife edge disk type electrode","authors":"Akinori Zukeran , Yuto Ikeda , Fumiki Mashimo , Koji Yasumoto , Masahiro Matsumoto , Noboru Matsumoto","doi":"10.1016/j.elstat.2023.103842","DOIUrl":null,"url":null,"abstract":"<div><p><span>In this study, the experiments were carried out to investigate the effect of a wire diameter on reducing ozone generation and improving the collection efficiency for particle sizes larger than 24 nm in an electrostatic precipitator (ESP) with </span>wire electrode<span><span>. Furthermore, the effect of the ESP with a knife-edge disk electrode was also investigated, since a wire will be broken. The ESP consisted of a discharging section and an electrostatic section. Two types of discharging sections were used. One was wire-to-plate configuration, and another was a knife-edge disk electrode structure. Positive DC high voltage was applied to the ESP, and </span>gas velocity was 0.6 m/s. As a result, the collection efficiency increased as the diameter of the wire electrode decreased. The efficiency for particle sizes greater than 400 nm achieved more than 99.3%, and the average efficiency for the particle sizes between 24 nm and 213 nm was 99.8% at the ozone concentration of 0.01 ppm and the fine wire diameter of 0.1 mm. In the ESP with knife edge disk type electrode, the efficiency increased with decreasing the diameter of the disk electrode. The collection efficiency for particle sizes larger than 400 nm achieved 99.8% or higher, and the average efficiency for the sizes between 24 nm and 213 nm was 99.0% at the ozone concentration of 0.01 ppm and the disk diameter of 28 mm. The effect which was equivalent to the ESP with fine wire electrode was obtained in the ESP with knife edge disk electrode.</span></p></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"125 ","pages":"Article 103842"},"PeriodicalIF":1.9000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electrostatics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304388623000517","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, the experiments were carried out to investigate the effect of a wire diameter on reducing ozone generation and improving the collection efficiency for particle sizes larger than 24 nm in an electrostatic precipitator (ESP) with wire electrode. Furthermore, the effect of the ESP with a knife-edge disk electrode was also investigated, since a wire will be broken. The ESP consisted of a discharging section and an electrostatic section. Two types of discharging sections were used. One was wire-to-plate configuration, and another was a knife-edge disk electrode structure. Positive DC high voltage was applied to the ESP, and gas velocity was 0.6 m/s. As a result, the collection efficiency increased as the diameter of the wire electrode decreased. The efficiency for particle sizes greater than 400 nm achieved more than 99.3%, and the average efficiency for the particle sizes between 24 nm and 213 nm was 99.8% at the ozone concentration of 0.01 ppm and the fine wire diameter of 0.1 mm. In the ESP with knife edge disk type electrode, the efficiency increased with decreasing the diameter of the disk electrode. The collection efficiency for particle sizes larger than 400 nm achieved 99.8% or higher, and the average efficiency for the sizes between 24 nm and 213 nm was 99.0% at the ozone concentration of 0.01 ppm and the disk diameter of 28 mm. The effect which was equivalent to the ESP with fine wire electrode was obtained in the ESP with knife edge disk electrode.
期刊介绍:
The Journal of Electrostatics is the leading forum for publishing research findings that advance knowledge in the field of electrostatics. We invite submissions in the following areas:
Electrostatic charge separation processes.
Electrostatic manipulation of particles, droplets, and biological cells.
Electrostatically driven or controlled fluid flow.
Electrostatics in the gas phase.