在地面常重力环境下,采用透明电池可视化方法研究了质子交换膜燃料电池阳极和阴极的流道淹没现象.分别研究了阳极和阴极反应物流量对电池内部传质和电池性能的影响.结果表明,电池阴极的淹没区域比阳极大,由电极淹没引起的气体传质受限和电化学反应受限主要发生在阴极.提高反应物流量能够强化气体传质并提高电池性能,并且提高电池阴极侧反应物流量比提高阳极侧反应物流量对提高电池性能更有效.本文工作为进一步开展微重力环境中的燃料电池实验提供了比较依据.
参考文献
| [1] | Hsuen H K .Performance Equations for Cathodes in Polymer Electrolyte Fuel Cells with Non-Uniform Water Flooding in Gas Diffusers[J].Journal of Power Sources,2004,137:183-195. |
| [2] | Baschuk J J;Li X .Modeling of Polymer Electrolyte Membrane Fuel Cells with Variable Degrees of Water Flooding[J].Journal of Power Sources,2000,86(1-2):181-196. |
| [3] | 郭航,马重芳,汪茂海,叶芳,王焱,俞坚,王朝阳.热物理参数对燃料电池内传质过程的影响[J].工程热物理学报,2004(01):148-150. |
| [4] | Guo H;Ma C F;Wang M H.Heat and Mass Transfer and Two Phase Flow in Hydrogen Proton Exchange Membrane Fuel Cells and Direct Methanol Fuel Cells[A].NY:ASME,2003:471-476. |
| [5] | Chang S K;Di Y K;Lee H K et al.Influence of Pore-Size Distribution of Diffusion Layer on Mass-Transport Problems of Proton Exchange Membrane Fuel Cells[J].Journal of Power Sources,2002,108(1-2):185-191. |
| [6] | 赵建福.微重力条件下气/液两相流流型的研究进展[J].力学进展,1999(03):369. |
| [7] | Liu X;Guo H;Ma C F.Visualization of Water Accumulation in Cathode Channels of A Proton Exchange Membrane Fuel Cell[A].西安,2005:44. |
| [8] | 刘璿,郭航,马重芳.质子交换膜燃料电池低化学计量比的性能研究[J].工程热物理学报,2005(06):1025-1027. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%