Knowledge Management System of Institue of Mechanics, CAS
| Two-Phase Flow In Fuel Cells In Short-Term Microgravity Condition | |
Guo H ; Zhao JF(赵建福); Ye F; Wu F; Lv CP; Ma CF; Guo, H (reprint author), Beijing Univ Technol, Coll Environm & Energy Engn, Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, 100 Ping Yuan, Beijing 100124, Peoples R China.
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| Source Publication | Microgravity Science And Technology
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| 2008 | |
| Pages | 265-269 |
| ISSN | 0938-0108 |
| Abstract | 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. |
| Keyword | Fuel Cells Two-phase Flow Microgravity Aerospace Applications Closed Environment Gas Evolution Performance System Visualization Channels Behavior Cathode Field |
| DOI | 10.1007/s12217-008-9038-z |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000260252200022 |
| WOS Keyword | AEROSPACE APPLICATIONS ; CLOSED ENVIRONMENT ; GAS EVOLUTION ; PERFORMANCE ; SYSTEM ; VISUALIZATION ; CHANNELS ; BEHAVIOR ; CATHODE ; FIELD |
| WOS Research Area | Engineering ; Thermodynamics ; Mechanics |
| WOS Subject | Engineering, Aerospace ; Thermodynamics ; Mechanics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/25556 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Guo, H (reprint author), Beijing Univ Technol, Coll Environm & Energy Engn, Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, 100 Ping Yuan, Beijing 100124, Peoples R China. |
| Recommended Citation GB/T 7714 | Guo H,Zhao JF,Ye F,et al. Two-Phase Flow In Fuel Cells In Short-Term Microgravity Condition[J]. Microgravity Science And Technology,2008:265-269. |
| APA | Guo H.,赵建福.,Ye F.,Wu F.,Lv CP.,...&Guo, H .(2008).Two-Phase Flow In Fuel Cells In Short-Term Microgravity Condition.Microgravity Science And Technology,265-269. |
| MLA | Guo H,et al."Two-Phase Flow In Fuel Cells In Short-Term Microgravity Condition".Microgravity Science And Technology (2008):265-269. |
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| J2007-32.pdf（322KB） | 开放获取 | -- | View Download | |||
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