Three-dimensional model for stacks of tubular high temperature proton exchange membrane fuel cells incorporating a thin layer approach for the membrane electrode assembly
Three-dimensional model for stacks of tubular high temperature proton exchange membrane fuel cells incorporating a thin layer approach for the membrane electrode assembly
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DOI：
10.1016/j.ijhydene.2021.01.042
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发表时间：
2021-03
影响因子：
7.2
通讯作者：
Aaron D. Ratschow;María Catalina Bermúdez Agudelo;M. Hampe
中科院分区：
文献类型：
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作者：
Aaron D. Ratschow;María Catalina Bermúdez Agudelo;M. Hampe
建立了管式高温质子交换膜燃料电池堆的三维非等温稳态模型。它是基于一个薄层的膜电极组件的方法，同时保留Butler-Volmer动力学，浓度和欧姆损失的两个电极。它解决了流动，温度和浓度场以及局部解决多个细胞的电流密度。极化曲线的单电池结果与单管HT PEM FC的实验数据比较好。该模型允许有效地模拟多个管状HT PEM燃料电池的堆栈与共享的空气通道，其中局部FC性能和流量，温度和浓度场之间的相互作用构成了一个主要的设计挑战。研究了流场设计、流量和电池间距对7个管式电池堆的影响，并导出了设计这种电池堆的基本方法。
A three-dimensional, non-isothermal, steady state model for stacks of tubular high temperature proton exchange membrane fuel cells (HT PEM FCs) is developed. It is based on a thin layer approach for the membrane-electrode assembly while retaining Butler-Volmer kinetics, concentration and Ohmic losses on both electrodes. It solves for flow, temperature and concentration fields as well as locally resolved current densities for multiple cells. Single cell results for the polarization curve compare well with experimental data for single tubular HT PEM FCs. The model allows for efficient simulations of stacks of multiple tubular HT PEM FCs with a shared air channel in which the interactions between local FC performance and flow, temperature and concentration fields pose a major design challenge. The effects of flow field design, flow rate and cell distance in a stack of 7 tubular cells are investigated and basic approaches for the design of such stacks are derived.