2024/12/16 by Margarita Baeva, Dirk Uhrlandt · 1 voice
Engineering · #Aerosol Filtration and Electrostatic Precipitation
paper · doi:10.1088/1361-6463/ad9f79
openalex publication_date 2024/12/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/22
Abstract A fluid model of direct current microarcs in copper metal vapour dominated air is developed to resemble the microarcs that occur at low-voltage and low-current conditions in switching devices during a contact separation. The model is capable of predicting the basic plasma parameters, including the electric potential, the temperatures of electrons and heavy particles, the number densities of charged and neutral particles in the spatially resolved inter-electrode region, the heating of the electrodes as well as the release of copper metal vapour from the electrodes. The model predicts a positive anode fall and an increase of the electron temperature in the proximity of the anode.