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Nonequilibrium Thermodynamics and entropy production in Simulation of electrical tree growth
* 1 , 2 , 3 , 4
1  Professor of Chemical Physics Faculty of Engineering , University of Buenos Aires
2  Edenor, Universidad Tecnológica Nacional Argentina
3  Professor of Electrical Engineering. Faculty of Engineering, University of Buenos Aires , Argentina
4  Assistant Professor, Faculty of Engineering ,University OF Buenos Aires


In the present work we applied the non equilibrium thermodynamic theory in the analysis of the Dielectric Breakdown (DB) process. As the tree channel front moves, the intense field near the front moves electrons and ions irreversibly in the region beyond the tree channel tips where electromechanical, thermal and chemical effects cause irreversible damage and from the non equilibrium thermodynamic viewpoint: entropy production. From the non equilibrium thermodynamics analysis the entropy production are due to the product of fluxes Ji and conjugated forces Xi: σ = ∑i Ji Xi0 We consider that the coupling between fluxes can describe the dielectric breakdown in solids as a phenomenon of transport of heat, mass and electric charge.

Keywords: entropy production; dielectric breakdown; non equilibrium thermodynamics