Analysis of Flow Factor Control Strategy in Vanadium Redox Flow Batteries. Issue 9 (2022)

• Record Type: Journal Article
• Authors: Parsegov, Sergei; Pugach, Mikhail; Polyakov, Andrey; Ibáñez, Federico
• Is Part Of: IFAC-PapersOnLine. Volume 55:Issue 9(2022)
• Page Start: 187
• Page End: 192
• Publication Date: 2022
• Subjects: flow rate control -- vanadium redox flow battery -- flow factor; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2022.07.033
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: Optimization of the performance of vanadium redox flow batteries (VRFBs) is closely related to flow rate control: a proper flow rate adjustment reduces the losses and extends the battery lifetime. In this regard, the so-called flow factor control strategy of VRFBs has been recently proposed in the literature and some numerical/experimental validations have been performed. The strategy is a generalization of Faraday's frst law of electrolysis as it uses a special scaling parameter referred to as the flow factor . In our paper, we show how this factor is related to the conversion rate (fraction conversion per pass) and geometrical properties of the battery. Finally, we investigate the flow factor as a function of the fraction conversion per pass and stack/tank volumes, and perform numerical simulations to confrm the theoretical results.