000129957 001__ 129957
000129957 005__ 20190416055729.0
000129957 02470 $$2ISI$$a000268749500135
000129957 037__ $$aCONF
000129957 245__ $$aMultiphysics and Energetic Modeling of a Vanadium Redox Flow Battery
000129957 269__ $$a2008
000129957 260__ $$aNone$$bNone$$c2008
000129957 336__ $$aConference Papers
000129957 520__ $$aVanadium 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 model is divided in two main parts: the electrochemical model that predicts the stack voltage, the variation in vanadium concentrations and the internal losses under any operating conditions and the mechanical model that describes the hydraulic circuit of the electrolyte and determines the pumps power. Then the stack efficiency is determined with the electrochemical model in a series of charge-discharge cycles and compared with experimental data. Finally, a method is proposed to increase the VRB performance by minimizing the power required to flow the electrolytes; in a 19 elements stack, the average gain is more than 1600 W.
000129957 6531_ $$avanadium redox flow batteries
000129957 6531_ $$aelectrochemical model
000129957 6531_ $$amechanical model
000129957 6531_ $$alosses
000129957 700__ $$aBlanc, C.
000129957 700__ $$0241026$$aRufer, A.$$g106311
000129957 7112_ $$aICSET 2008 : 2008 IEEE International Conference on Sustainable Energy technologies$$cSingapore$$d24-27 November 2008
000129957 773__ $$tNone
000129957 8564_ $$s3262952$$uhttps://infoscience.epfl.ch/record/129957/files/icset_2008.pdf$$zn/a
000129957 909C0 $$0252144$$pLEI$$xU10314
000129957 909CO $$ooai:infoscience.tind.io:129957$$pconf$$pSTI$$qGLOBAL_SET
000129957 937__ $$aLEI-CONF-2008-035
000129957 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000129957 980__ $$aCONF