Abstract
A quantitative investigation has been carried out to examine the effect of through-plane temperature difference on water transport across the membrane electrode assembly (MEA) of a proton exchange membrane (PEM) fuel cell. The presence of a temperature difference across the cell was found to cause a significant amount of water to transport through the MEA in the direction towards the colder side; the water transport rate increased with temperature and temperature gradient. This study reveals the importance of thermo-osmosis in PEM fuel cells (PEMFCs) and the need to consider the through-plane temperature profile in water management design and operation in PEMFCs.
| Original language | English |
|---|---|
| Pages (from-to) | A418-A422 |
| Journal | Electrochemical and Solid-State Letters |
| Volume | 9 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2006 |
| Externally published | Yes |