Numerical prediction of the effect of catalyst layer Nafion loading on the performance of PEM fuel cells
| Autor: | Chin-Hsiang Cheng, Guang Jer Lai, Hung Hsiang Lin |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Momentum (technical analysis)
Computer simulation Renewable Energy Sustainability and the Environment Chemistry business.industry Energy Engineering and Power Technology Proton exchange membrane fuel cell Computational fluid dynamics chemistry.chemical_compound Volume (thermodynamics) Nafion Physics::Chemical Physics Electrical and Electronic Engineering Physical and Theoretical Chemistry Composite material Transport phenomena business Simulation Parametric statistics |
| Zdroj: | Journal of Power Sources. 164:730-741 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2006.11.039 |
| Popis: | Numerical simulations are performed to investigate the effect on PEM fuel cell performance of Nafion loading in the catalyst layer. The investigation also considers variations of geometric parameters. A model that accounts for the volume fractions of Nafion, the solid catalyst particles, and the void space inside the catalyst layers is incorporated into a three-dimensional computational fluid dynamics code, capable of resolving three-dimensional mass, momentum, and species transport phenomena as well as the electron- and proton-transfer processes in a PEMFC. Numerical results are first compared with experiments, showing close agreement between predictions and measurements. A parametric study on the effects of Nafion loading and geometric parameters variation is carried out to evaluate the performance of PEMFC for various parameter combinations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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