Analysis of the charging characteristics of MgO powder in the feeding tube of a mineral insulated cable filling device

IF 1.9 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electrostatics Pub Date : 2025-02-08 DOI:10.1016/j.elstat.2025.104039

Jialiang Chi, Jinjun Wang, Meixuan Su, Yao Zhao, Zhiqiang Wang

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引用次数: 0

Abstract

During the filling process of mineral insulated cables, MgO powder particles undergo tribocharging within the feeding tube, leading to charge accumulation on the surface and inside the powder. This results in a reduction in compactness of the powder, which subsequently affects the insulating properties of mineral insulated cables. The research on the phenomenon of tribocharging within the feeding tube is still insufficient. In order to address the aforementioned issues, the discrete element method (DEM) is used to construct a theoretical model and the EDEM simulation software is employed to examine the tribocharging process of MgO powder within the feeding tube. Then experiments are utilized to ascertain the influence of the tube's tilting angle and particle size on the charge-to-mass ratio of MgO powder particles. The results show that both the tilt angle of the feeding tube and the MgO particle size are proportional to the charge-to-mass ratio of the MgO powder.

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来源期刊

Journal of Electrostatics 工程技术-工程：电子与电气

CiteScore

4.00

自引率

11.10%

发文量

审稿时长

49 days

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.