Publications (2)
ARTICLE
Study of the Equilibrium Composition of a Sulfur Hexafluoride–Air Plasma Mixture between 1,000 K and 15,000 K: An Application to High-Voltage Circuit Breakers
Ibrahim Pafadnam a,b*, Nièssan Kohio b,c, Wêpari Charles Yaguibou b,d, Abdoul Karim Kagoné b,e, Haïdara Savadogo b, Abdoulaye Kabre b and Zacharie Koalaga b,e
Sulfur hexafluoride (SF₆) is widely used in high-voltage circuit breakers because of its insulating properties and interrupting capability, although concerns related to its environmental impact and decomposition products encourage efforts to limit its use. This study determines the equilibrium chemical composition of SF₆–air plasmas at atmosph(...)
Thermal plasmas; equilibrium composition; Gibbs free energy; thermal equilibrium; local thermodynamic equilibrium.
ARTICLE
Calculation and Analysis of the Thermophysical Properties of Air-Aerosols Mixtures
Yaguibou Wepari Charles1, * , Pafadnam Ibrahim2 , Banouga Adjigkiga3 , Yann Cressault4 , Kagone Abdoul Karim3 , Kohio Niessan5 , Koalaga Zacharie3
Electrical equipment, such as circuit breakers, often encounters operational issues, such as short-circuit failures. These malfunctions can be attributed to the deposition of aerosols containing aluminium oxide (Al2O3), calcium oxide (CaO), ferric oxide (Fe2O3), and silica (SiO2) on the devices. Previous studies have examined the influence of(...)
Electrical, Thermal, Conductivity, Viscosity, Plasma, Circuit Breaker