Two-phase Flow in Fuel Cells in Short-term Microgravity Condition
文献类型：会议论文
| 作者 | Guo H ; Zhao JF(赵建福); Ye F; Wu F; Lv CP; Ma CF
|
| 出版日期 | 2008 |
| 会议名称 | 3rd International Topical Team Workshop on Two-phase Systems for Ground and Space Applications |
| 会议日期 | SEP 10-12, 2008 |
| 会议地点 | Univ Libre Bruxelles, Brussels, BELGIUM |
| 通讯作者邮箱 | hangguo@sohu.com |
| 关键词 | Fuel Cells Two-Phase Flow Microgravity Aerospace Applications Closed Environment Gas Evolution Performance System Visualization Channels Behavior Cathode Field |
| 页码 | 265-269 |
| 通讯作者 | Guo H |
| 中文摘要 | A visual observation of liquid-gas two-phase flow in anode channels of a direct methanol proton exchange membrane fuel cells in microgravity has been carried out in a drop tower. The anode flow bed consisted of 2 manifolds and 11 parallel straight channels. The length, width and depth of single channel with rectangular cross section was 48.0 mm, 2.5 mm and 2.0 mm, respectively. The experimental results indicated that the size of bubbles in microgravity condition is bigger than that in normal gravity. The longer the time, the bigger the bubbles. The velocity of bubbles rising is slower than that in normal gravity because buoyancy lift is very weak in microgravity. The flow pattern in anode channels could change from bubbly flow in normal gravity to slug flow in microgravity. The gas slugs blocked supply of reactants from channels to anode catalyst layer through gas diffusion layer. When the weakened mass transfer causes concentration polarization, the output performance of fuel cells declines. |
| 收录类别 | CPCI-S |
| 会议录 | Microgravity Science And Technology
 |
| 会议录出版者 | New York |
| 会议录出版地 | Springer |
| 语种 | 英语 |
| ISSN号 | 0938-0108 |
| WOS记录号 | WOS:000260252200022 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/25382]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Guo H,Zhao JF,Ye F,et al. Two-phase Flow in Fuel Cells in Short-term Microgravity Condition[C]. 见:3rd International Topical Team Workshop on Two-phase Systems for Ground and Space Applications. Univ Libre Bruxelles, Brussels, BELGIUM. SEP 10-12, 2008. |
入库方式： OAI收割
来源：力学研究所
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