Study on reaction rates for 2T SF 6 plasma: application to chemical kinetics of a decaying arc in high voltage circuit breakers

Autor: Arnaud Bultel, Yann Cressault, X Baumann, Ph Teulet

Publikováno v: Journal of Physics: Conference Series
Journal of Physics: Conference Series, IOP Publishing, 2019, 1243, pp.012007. ⟨10.1088/1742-6596/1243/1/012007⟩

This work is devoted to the study and comparison of theories to calculate densities of chemical species in a SF6 plasma in thermal non equilibrium conditions. The limits of the 2T law of mass action are shown. Then, the reaction rates are studied for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b855163e9fc56cca60ea5926188c7d7
https://hal.archives-ouvertes.fr/hal-02153607

State of Art and Challenges for the Calculation of Radiative and Transport Properties of Thermal Plasmas in HVCB

Autor: F. Reichert, G. Vanhulle, Yann Cressault, X Baumann, A. Petchanka, N. Kabbaj, Ph Teulet

Publikováno v: Plasma Physics and Technology
Plasma Physics and Technology, Department of Physics of the Faculty of Electrical Engineering of Czech Technical University, 2019, 6 (2), pp.208-216. ⟨10.14311/ppt.2019.2.208⟩

International audience; This paper is focused on the state-of-the-art and challenges concerning the thermophysical properties of thermal plasmas used in numerical modelling devoted to high voltage circuit breakers. For Local Thermodynamic Equilibrium

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37e3f08ce47353041a9e69b9a94ea288
https://hal.archives-ouvertes.fr/hal-03304277

Arc tracking energy balance for copper and aluminum aeronautic cables

Autor: T André, R Caussé, Ph Teulet, Yann Cressault, T Zink, Flavien Valensi

Publikováno v: Journal of Physics: Conference Series
Journal of Physics: Conference Series, IOP Publishing, 2017, 825 (12), pp.012001. ⟨10.1088/1742-6596/825/1/012001⟩

Arc tracking tests have been carried out between two voluntarily damaged aeronautic cables. Copper or aluminum conductors have been exposed to short circuits under alternating current. Various data have been recorded (arc voltage and current, radiate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e223c9af9b51cfcee5a7c62695fcbe09
https://hal-univ-tlse3.archives-ouvertes.fr/hal-03418987

Spectroscopic investigation of partial LTE assumption and plasma temperature field in pulsed MAG arcs

Autor: Fei Wang, Fusheng Yu, Yann Cressault, Ph Teulet, Ke Yang, Huan Li, Flavien Valensi

Publikováno v: Journal of Physics D: Applied Physics
Journal of Physics D: Applied Physics, IOP Publishing, 2018, 51 (25), pp.255203. ⟨10.1088/1361-6463/aac47f⟩

The study of gas–metal arc welding (GMAW) often relies on the hypothesis of local thermodynamical equilibrium (LTE). Few works are dedicated to its validation and none is focused on the case of pulsed metal active gas welding. This paper presents t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3dc3653c18e0e922dc6d35dead6e441
https://doi.org/10.1088/1361-6463/aac47f

Cross section and rate coefficient calculations for electron impact excitation of the a $^{\sf 3}{\sf \Pi}$ , a’ $^{\sf 3}{\sf \Sigma^{+}}$ , d $^{\sf 3}{\sf \Delta}$ , e $^{\sf 3}{\sf \Sigma^{-}}$ , I $^{\sf 1}{\sf \Sigma^{+}}$ and D $^{\sf 1}{\sf \Delta}$ states of CO

Autor: R. Riahi, Ph Teulet, Alain Gleizes, N. Jaïdane

Publikováno v: The European Physical Journal D. 56:67-72

An efficient theoretical method for investigating the cross sections and rate coefficients of electron impact excitation processes involving carbon monoxide (CO) diatomic molecules has been applied in the temperature range 1500–15 000 K. The weight

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b86704e0917a230cc2e43d94d4660e1
https://doi.org/10.1140/epjd/e2009-00267-5