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Modeling a vanadium redox flow battery (VRB) is intrinsically a multiphysics task based on electrochemistry and fluid mechanics. The electrochemical model predicts the stack voltage and determines the internal losses and the vanadium concentrations within the battery whereas the mechanical model determines the power required to flow the electrolyte: this power represents also a system loss. This paper...
Vanadium redox flow batteries (VRB) are large stationary electricity storage systems; their performance is enhanced when they are operating under optimal conditions. The multiphysics model developed in this paper offers a good understanding of the VRB operating principles; this knowledge is important to identify and quantify the source of losses: the internal losses and the auxiliaries losses. The...
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