A physical model for redox flow batteries is developed to estimate performance for any chemistry using parameters such as electrolyte conductivity and kinetic rate constants. The model returns the performance as a function of flow rate, current density, and state of charge. Two different models are developed to estimate the current density distribution throughout the electrode in order to evaluate physical performance of the battery. This is done using electrochemical parameters such as conductivity and kinetic rate constant. The models are analytical in order to produce a computationally cheap algorithm that can be used in optimization routines. This allows for evaluating the economic performance of redox flow batteries, and optimization of cost. The models are validated vs data and found to accurately predict performance in a V-V system for a wide variety of operating conditions.
|Commitee:||Goncher, Gary, Rananavare, Shankar, Viswanathan, Vilayanur|
|School:||Portland State University|
|School Location:||United States -- Oregon|
|Source:||MAI 55/04M(E), Masters Abstracts International|
|Keywords:||Energy storage, Modeling, Redox flow batteries|
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