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タイトル: | Quantitative analysis of agglomerates levitated from particle layers in a strong electric field |
著者: | Shoyama, Mizuki Nishida, Shuhei Matsusaka, Shuji https://orcid.org/0000-0001-9048-929X (unconfirmed) |
著者名の別形: | 庄山, 瑞季 西田, 周平 松坂, 修二 |
キーワード: | Electrification Agglomeration Levitation Particle layer External electric field |
発行日: | Oct-2019 |
出版者: | Elsevier BV |
誌名: | Advanced Powder Technology |
巻: | 30 |
号: | 10 |
開始ページ: | 2052 |
終了ページ: | 2058 |
抄録: | The electrification, agglomeration, and levitation of particles in a strong electric field were analyzed experimentally and theoretically. Particle layers of glass, alumina, and ferrite were formed on a plate electrode and an external voltage was applied. Microscopic observations of the agglomerates levitated from the particle layers revealed that the number of primary particles constituting an agglomerate is affected by particle diameter and electrical resistance, but not by the applied electric field. The electric field distributions in the system were calculated by considering the charges and geometries of the agglomerates formed on the particle layers. The charges of the agglomerates were obtained experimentally. All forces acting on the agglomerates (i.e., gravitational forces, Coulomb forces, interaction forces between polarized particles, image forces, and gradient forces) were analyzed under different conditions, including various electric field distributions and charges of agglomerates. Furthermore, the critical conditions for the levitation of the agglomerates were evaluated using a force balance. |
著作権等: | © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ The full-text file will be made open to the public on 1 October 2021 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/243874 |
DOI(出版社版): | 10.1016/j.apt.2019.06.018 |
出現コレクション: | 学術雑誌掲載論文等 |
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