Multiscale modeling approaches of transport phenomena in fuel cells
Författare
Summary, in English
Modeling is of key importance in fuel cell development beyond the current-state-of-the-art because it is beneficial to understand the mechanisms of various interacting phenomena and effects on the cell performance. It is also hard to measure the local parameters inside fuel cells, particularly inside the small scale functional materials. Modeling and simulation of charge transfer and electrochemical performance are critical to enable optimization of the geometry and performance. For macroscale modeling, the micro-and nano-structure related properties defining a porous media, e.g., the porosity and tortuosity and the specific area available for surface reactions are required. Thus the coupling of models valid at various scales is important for continued progress in the development of fuel cells. Within this paper both macroscale and micro-/nanoscale modeling approaches are presented for the fuel cell types SOFC (solid oxide fuel cell) and PEMFC (polymer electrolyte membrane fuel cell). In particular the electrodes, electrolyte and unit cells are considered. Some relevant results are provided.
Avdelning/ar
Publiceringsår
2014
Språk
Engelska
Publikation/Tidskrift/Serie
Proceedings of the 15th International Heat Transfer Conference, IHTC 2014
Dokumenttyp
Konferensbidrag
Förlag
Begell House
Ämne
- Energy Engineering
Nyckelord
- Computational methods
- Electrochemical transport
- Fuel cells
- Heat exchangers
- Modeling
- Multiscale
- Porous media
Conference name
15th International Heat Transfer Conference, IHTC 2014
Conference date
2014-08-10 - 2014-08-15
Conference place
Kyoto, Japan
Status
Published