EXPERIMENTAL AND NUMERICAL ANALYSIS OF SUBFREEZING OPERATION IN PEM FUEL CELLS
Conference
·
OSTI ID:986846
- ORNL
In this work, we present the neutron radiography and analysis, as well as modeling predictions of cold-start operation of PEM fuel cells. Fuel cells with Gore or LANL MEAs and SGL or E-Tek ELAT GDLs are tested in varying subfreezing temperatures (-40 to 0 C) to determine time to failure, amount of water formation, and place of water formation. Theoretical modeling is also conducted and model predictions are compared with the cell voltage evolution during subfreezing operation. A higher PTFE-loading in the MPL is found to decrease loss in ESCA in our case.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 986846
- Resource Relation:
- Conference: The 8th International Fuel Cell Science, Engineering & Technology Conference, Brooklyn, NY, USA, 20100614, 20100616
- Country of Publication:
- United States
- Language:
- English
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