CFD analysis of the flow-field scale-up influence on the electrodes performance in a PEFC

被引：11

作者：

Squadrito, G ^{[1
]}

Barbera, O ^{[1
]}

Gatto, I ^{[1
]}

Giacoppo, G ^{[1
]}

Urbani, F ^{[1
]}

Passalacqua, E ^{[1
]}

机构：

[1] CNR, ITAE, I-98126 Messina, Italy

来源：

JOURNAL OF POWER SOURCES | 2005年 / 152卷 / 01期

关键词：

CFD; scale-up; fuel cell; flow-field design;

D O I：

10.1016/j.jpowsour.2004.12.054

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A computational fluid dynamic (CFD) analysis was used as a useful tool to obtain numerical relationships among similar flow-field designs having different active areas. Assuming that, at fixed current density, the porous layer velocity distribution calculated for the smallest size geometry was the optimal, a scale-up methodology has been proposed and implemented in software. It allows acquisition of the scaled-up flow-field by multiplying the reference cell parameters by suitable factors (scale factors). A calibration methodology has also been proposed by the introduction of a feedback factor evaluated by CFD analysis. A first application of this procedure has been carried out to scale-up a 5-125 cm(2) cell. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：67 / 74

页数：8

共 5 条

[1]

BARBERA O, UNPUB INT J HYDROGEN

[2] Interaction between the diffusion layer and the flow field of polymer electrolyte fuel cells -: experiments and simulation studies [J].