Experimental investigation on granular insulator charging

Chibane, Oualid (author), Smili, Karima (author), Herouz, Lazhar (author), Chiheb, Sofiane (author)

The paper investigates the electrostatic charging of the polypropylene granules using a double-wire corona discharge electrode configuration to analyze the impact of various parameters on the surface potential of insulating polypropylene granules. Various geometric parameters including the inter-wire spacing, applied voltage, charging height, and loading speed are examined. The uniformity and amplitude of the potential profile resulting from an inter-wire spacing of 80 mm, height of 20 mm, and low conveyor speed permit maximize the charging efficiency of the granular insulating materials.

• Language: English
• Keywords: Corona discharge, electrostatic separation, polypropylene, surface potential, wire-to-plane electrode
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FE - Faculty of Electrical Engineering
• Year: 2025
• Number of pages: Str. 243-249
• Numbering: Letn. 92, št. 5
• PID: 20.500.12556/RUL-183578
• UDC: 621.315.61:621.3.018.7
• ISSN on article: 0013-5852
• COBISS.SI-ID: 280545795
• Publication date in RUL: 15.06.2026

Record is a part of a journal

• Title: Elektrotehniški vestnik
• Publisher: Strokovna zadruga koncesijoniranih elektrotehnikov, Elektrotehniška zveza Slovenije
• ISSN: 0013-5852
• COBISS.SI-ID: 742916

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Title: Eksperimentalna raziskava o nalaganju naboja v zrnatih izolatorjih

Abstract

Prispevek obravnava elektrostatično nalaganje naboja na polipropilenske granule z uporabo dvožične elektrode s koronskim izpustom. Analizirali smo vpliv različnih geometrijskih parametrov na površinski potencial izolacijskih polipropilenskih granul: razmik med žicama, napetost, višino polnjenja in hitrost nalaganja. Enakomernost in velikost potencialnega profila, dosežena pri razmiku med žicama 80 mm, višini 20 mm in nizki hitrosti transportnega traku, omogočata največjo učinkovitost nalaganja naboja na zrnate izolacijske materiale.

• Keywords: nalaganje naboja, polipropilenske granule, dvožična elektroda, elektronsko vojskovanjeizolacija