Seham Kamal

Sohag University · Department of Electricity

This article is aimed at calculating the onset voltage of corona on ac and dc conductors of a hybrid transmission line along with corona current–voltage ( $I$ – $V$ ) characteristic of both the dc conductor operating separately or with ac conductor forming a hybrid line and the ac conductor with and without dc conductor. This makes it possible to...

This article is concerned with the calculation of the corona current–voltage characteristics of a unipolar high-voltage direct current (HVDC) transmission line with a single conductor stretched above the ground plane. In light of justified assumptions, the corona charge density around the conductor surface is obtained using an iterative procedure....

This paper is aimed at investigating thoroughly the corona performance in the wire-cylinder ESP with and without loading by suspended particles in the exhaust of a diesel engine. The onset voltage of negative corona on the discharge wire is calculated based on the criterion of self-sustained discharge. The ionized space between the discharge wire a...

This paper is aimed at investigating thoroughly the corona performance in the wire-cylinder ESP with and without loading by suspended particles in the exhaust of a diesel engine. The onset voltage of negative corona on the discharge wire is calculated based on the criterion of self-sustained discharge. The ionized space between the discharge wire a...

This paper is aimed at investigating thoroughly the corona performance in the wire-cylinder electrostatic precipitor (ESP) without suspended particles. The onset voltage of negative corona on the discharge wire is calculated based on the criterion of self-sustained discharge. The ionized field in the ESP is mathematically modeled for calculating th...

This paper is aimed at investigating thoroughly the corona performance in the wire-cylinder electrostatic precipitor (ESP) with loading by suspended particles in the exhaust of a diesel engine. The onset voltage of negative corona on the discharge wire is calculated based on the criterion of self-sustained discharge. The ionized field in the ESP is...

This paper is aimed at investigating the re-entrainment phenomena of particles in wire-duct electrostatic precipitators. This calls for assessment of the forces acting on a particle positioned in the precipitator nearby the collecting plate. These include Van Der Waals, Johnsen Rahbek and repulsion forces. Re-entrainment takes place when the repuls...

This paper is aimed at investigating the electric field, the positive-corona onset-voltage and current-voltage relationship of tree-shaped multi-needle-to-plane configurations. The configurations include 1, 5, 9, 13 and 17 needles arranged in one, two and three layers. The well-known charge simulation method was used to calculate the electric field...