Mathematical Modelling of Transport and Reaction in an Innovative Solid Oxide Fuel Cell

被引：2
作者：
Bertei, Antonio [1 ]
Nicolella, Cristiano [1 ]
Thorel, Alain S. [2 ]
机构：
[1] Univ Pisa, Dipartimento Ingn Chim Chim Ind & Sci Mat, Via Diotisalvi 2, I-56100 Pisa, Italy
[2] Mines ParisTech, Ctr Mat, F-91003 Evry, France
来源：
ICHEAP-10: 10TH INTERNATIONAL CONFERENCE ON CHEMICAL AND PROCESS ENGINEERING, PTS 1-3 | 2011年 / 24卷
关键词：
GASES;
D O I：
10.3303/CET1124022
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A mathematical model for the description of transport phenomena and reactions in an innovative solid oxide fuel cell (IDEAL-Cell) is presented. Modelling focuses on the central membrane (CM), a porous composite layer of proton-conducting and anion-conducting phases between cathodic and anodic compartments where water is produced. The model is based on charge and mass balances using effective parameters (continuum approach) related through percolation theory to morphology and material properties. The model is validated with experimental data, providing an estimation of the kinetic parameter of water recombination reaction. Simulations show that the main contribution to cell polarization resistance is the ohmic resistance of CM, so cell performance can be improved by decreasing CM thickness and porosity respectively to 150 mu m and 40%.
引用
收藏
页码：127 / +
页数：2
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