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Hydrodynamic and electrochemical modeling of vanadium redox flow battery

Ozgoli, H. A ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1051/meca/2014071
  3. Publisher: EDP Sciences , 2015
  4. Abstract:
  5. Two and three dimensional modeling of a single cell of vanadium redox flow battery has been done thoroughly according to electrochemical and fluid mechanic equations in this study. The modeling has been done in stationary state and its results have been presented in three chemical, electrical and mechanical sub models. The parametric analysis on some of important factors in cell operation demonstrated that increase in electrode and membrane conductivity and electrode porosity contributes to electric potential increase in cells. Also operational temperature increase leads to decrease in cells' voltage. Better fluid distribution on the electrode surface area results in better cell operation, therefore the electrolyte flow distribution form in cell has been studied by designing different flow frames. Modified Navier-Stokes equations have been used in these calculations for porous media. The most coverage on electrode surface and low pressure loss had been the best case criteria
  6. Keywords:
  7. Computational fluid dynamic ; Electrolyte distribution ; Porous media ; Stationary model ; Vanadium redox battery ; Computational fluid dynamics ; Electric batteries ; Electric potential ; Electrodes ; Flow batteries ; Fluid dynamics ; Fluid mechanics ; Navier Stokes equations ; Porous materials ; Vanadium ; Electrochemical modeling ; Electrolyte distribution ; Modified navier-stokes equations ; Operational temperature ; Stationary models ; Three-dimensional model ; Vanadium redox batteries ; Vanadium redox flow batteries ; Secondary batteries
  8. Source: Mechanics and Industry ; Volume 16, Issue 2 , 2015 ; 22577777 (ISSN)
  9. URL: http://www.mechanics-industry.org/articles/meca/abs/2015/02/mi140046/mi140046.html