Analysis of processes in planar solid ozide fuel cells
In this paper, a platform for solid oxide fuel cell (SOFC) simulation has been developed and the corresponding algorithms are presented. The platform is capable of dealing with fully coupled multiphysical processes and simulating the behaviors of three flow configurations. Border effects were revealed and it is important to understand the scale-up topic in SOFC development. The determining steps in cell performance are proposed and respective schemes are provided to enhance cell performance according to the determining steps. The characteristics of the three flow configurations were analyzed and compared. The cross-flow configuration was given negative recommendations for its unsatisfactory performance in uniformly distributing cell temperature and current density. The co-flow configuration could intrinsically obtain a uniform current density distribution with the disadvantage of steadily increasing cell temperature from fuel inlet to outlet. The counter-flow configuration had localized enhancement effects near the fuel inlet and cell performance substantially benefited from these effects. But the operating conditions of the counter-flow configuration should be deliberately adjusted to avoid an excessively high cell temperature.
Solid ozide fuel cell Simulation Determining step Enhancement scheme Scale-up
Qiang Hu Shaorong Wang Ting-Lian Wen
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
1579-1587
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）