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Storage is an important domain of the energy sector, with its traditional, classical solutions for smaller and larger amounts of energy. Energy storage has become of higher importance in relation with the development of alternative energy sources, called also renewable sources. The future energy systems will be based more and more on accumulation in the context of the development of so-called smart...
This paper deals with the design of a grid-friendly ultrafast electric vehicle charging demonstrator. High charging power and short charging times impose peaks to an electricity distribution system, which necessitate over-dimensioning of the grid connection. A mitigation option lies in partial decoupling the load from the grid, achieved with the application of energy storage elements. A calculation...
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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