| PEMFC流场的数学模拟 |
| |
| 引用本文： | 王红星,王宇新.PEMFC流场的数学模拟[J].天津大学学报(自然科学与工程技术版),2007,40(11):1313-1318. |
| |
| 作者姓名： | 王红星 王宇新 |
| |
| 作者单位： | 天津大学化工学院,天津300072 |
| |
| 摘 要： | 质子交换膜燃料电池（PEMFC）流场是影响其电池性能的重要因素．建立了针对PEMFC流场分析的数学模型，并对5种常见形式的流场进行了模拟计算，考察了其中气体流速及电流密度等物理量的分布情况．模拟结果显示，流场形式对电流密度分布影响很大，适当拉近上游和下游流场之间的距离可以促进电流密度的均匀分布．所建方法可以用来评价流场，对流场形式的设计有指导作用。
|
| 关 键 词： | 质子交换膜燃料电池 流场 数学模型 |
| 文章编号： | 0493-2137（2007）11-1313-06 |
| 收稿时间： | 2006-10-12 |
| 修稿时间： | 2007-06-26 |
Mathematical Simulation of Flow Field of PEMFC |
| |
| WANG Hong-xing,WANG Yu-xin.Mathematical Simulation of Flow Field of PEMFC[J].Journal of Tianjin University(Science and Technology),2007,40(11):1313-1318. |
| |
| Authors: | WANG Hong-xing WANG Yu-xin |
| |
| Abstract: | Flow field of proton exchange membrane fuel cell(PEMFC) is an important factor which influents cell performance.The influence of five flow fields including serpentine channel,parallel channels,parallel serpentine channels,spiral channels and mesh channels on the gas flow rate and current density distribution of PEMFC was investigated by a mathematical model.The results show that flow fields have great influence on current density distribution.Significant improvements in current density distribution can be obtained by putting inlet channels and outlet channels closer.Different types of flow field can be evaluated by this model which is a useful tool for flow field design. |
| |
| Keywords: | proton exchange membrane fuel cell(PEMFC) flow field mathematical model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
