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Model-based Design and Optimization of Vanadium Redox Flow Batteries

Impresion
EUR 54,00

E-Book
EUR 37,80

Model-based Design and Optimization of Vanadium Redox Flow Batteries

Sebastian König (Autor)

Previo

Indice, PDF (130 KB)
Lectura de prueba, PDF (3,4 MB)

ISBN-13 (Impresion) 9783736996151
ISBN-13 (E-Book) 9783736986152
Idioma Inglés
Numero de paginas 182
Laminacion de la cubierta mate
Edicion 1.
Lugar de publicacion Göttingen
Lugar de la disertacion Karlsruhe
Fecha de publicacion 13.09.2017
Clasificacion simple Tesis doctoral
Area Ingeniería eléctrica
Ingeniería de energía
Palabras claves VRFB, Flow battery, Vanadium Redox Flow Battery, Model, Design, Simulation, Optimization, Flow rate control
Descripcion

In this work, a holistic approach is used to develop a multi-physical model of the Vanadium Redox Flow Battery on a system level. The model is validated with experimental data from three flow battery manufacturers and is then deployed in an extensive parameter study for designing a flow battery cell. Using finite element analysis (FEA), twenty-four different cell designs are derived, which vary in electrode area and the design of the electrolyte inlet and outlet supply channels. The performance of the designs is then simulated in a single-stack and a three-stack string system.

The presented model is also deployed in a flow rate optimization study. Here, a novel strategy involving the model-based optimization of operation-points defined by state-of-charge and charging or discharging current is presented and compared to conventional flow rate control strategies. Finally, a stack voltage controller is introduced, which prevents the violation of cell voltage limits as long as the pump capacity is not fully utilized.