Steady-State and Transient Analysis of a Steam-Reformer Based Solid Oxide Fuel Cell System
Steady-State and Transient Analysis of a Steam-Reformer Based Solid Oxide Fuel Cell System
复制标题
基于蒸汽重整器的固体氧化物燃料电池系统的稳态和瞬态分析
DOI：
10.1115/1.3120269
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发表时间：
2010
影响因子：
--
通讯作者：
R. Mukherjee
中科院分区：
文献类型：
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作者：
Tuhin Das;S. Narayanan;R. Mukherjee
在本文中，我们进行了基于模型的分析，固体氧化物燃料电池（SOFC）系统与集成的蒸汽重整器和甲烷作为燃料。本研究的目的是分析该系统的稳态和瞬态特性。为了进行分析，我们开发了一个详细的面向控制的系统模型，捕获的热量和质量传递，化学动力学和电化学现象。我们表示的动态的重整器和燃料电池的状态空间形式。通过应用坐标变换的状态空间模型，我们推导出的稳态条件和瞬态行为的两个关键性能变量，即，燃料利用率和蒸汽-碳平衡的解析表达式。利用这些结果，我们解决了约束稳态燃料优化问题，使用线性规划。我们的分析得到了模拟的支持。本文的结果可以应用于预测稳态条件和某些瞬态行为，将是有用的SOFC系统的控制开发。
In this paper we perform a model-based analysis of a solid oxide fuel cell (SOFC) system with an integrated steam reformer and with methane as a fuel. The objective of this study is to analyze the steady-state and transient characteristics of this system. For the analysis, we develop a detailed control-oriented model of the system that captures the heat and mass transfer, chemical kinetics, and electrochemical phenomena. We express the dynamics of the reformer and the fuel cell in state-space form. By applying coordinate transformations to the state-space model, we derive analytical expressions of steady-state conditions and transient behaviors of two critical performance variables, namely, fuel utilization and steam-to-carbon balance. Using these results, we solve a constrained steady-state fuel optimization problem using linear programming. Our analysis is supported by simulations. The results presented in this paper can be applied in predicting steady-state conditions and certain transient behaviors and will be useful in control development for SOFC systems.