Modeling the Steady-State and Dynamic Characteristics of Solid-Oxide Fuel Cells

摘要: Abstract This chapter begins by introducing solid-oxide fuel-cell systems, including a description of balance-of-plant components and alternative cell architectures. Following discussion basic functions, modeling framework is described in the context physically based mathematical representation transport, chemistry, electrochemistry. Recognizing importance dynamic behavior, relevant conservation equations are presented transient form. Using tubular planar cells as examples, model problems solved to illustrate discuss both dynamical steady-state behaviors. The models can be exercised ways support different objectives. For example, model-based electrochemical impedance spectroscopy assist interpreting behaviors physical chemical terms, providing powerful equivalent-circuit modeling. Another important objective develop that model-predictive control strategies, coordinating multiple sensors actuators, respecting constraints on actuation or responses.