The fuel cell, which is a highly promising candidate for high efficiency energy conversion, is not reaching expected conversion efficiencies of η > 0,5 yet. Parallel to standard explanations of loss mechanisms by means of overvoltages, a thermodynamic view of addressing irreversibilities by calculating local entropy production rates is helpful. Entropy production rates are calculated by multiplying local transport fluxes with appropriate driving forces, i.e., gradients of temperature, chemical potentials and electric potentials. These gradients have to be calculated by solving the set of constitutive balance equations. Before this tedious task is done, simplified model equations have to be used. The reversible fuel cell is the starting point of analysis. Results for a one-dimensional PEMFC are shown.
Skip Nav Destination
Close
Sign In or Register for Account
ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology
May 23–25, 2005
Ypsilanti, Michigan, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-3764-5
PROCEEDINGS PAPER
Thermodynamic View on the Loss Mechanisms in PEM-Fuel Cells
S. Kabelac,
S. Kabelac
Helmut-Schmidt University, Hamburg, Germany
Search for other works by this author on:
M. Siemer
M. Siemer
Helmut-Schmidt University, Hamburg, Germany
Search for other works by this author on:
S. Kabelac
Helmut-Schmidt University, Hamburg, Germany
M. Siemer
Helmut-Schmidt University, Hamburg, Germany
Paper No:
FUELCELL2005-74071, pp. 405-411; 7 pages
Published Online:
October 13, 2008
Citation
Kabelac, S, & Siemer, M. "Thermodynamic View on the Loss Mechanisms in PEM-Fuel Cells." Proceedings of the ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology. 3rd International Conference on Fuel Cell Science, Engineering and Technology. Ypsilanti, Michigan, USA. May 23–25, 2005. pp. 405-411. ASME. https://doi.org/10.1115/FUELCELL2005-74071
Download citation file:
- Ris (Zotero)
- Reference Manager
- EasyBib
- Bookends
- Mendeley
- Papers
- EndNote
- RefWorks
- BibTex
- ProCite
- Medlars
Close
Sign In
5
Views
0
Citations
Related Proceedings Papers
Related Articles
Exergetic Optimization of a PEM Fuel Cell for Domestic Hot Water Heater
J. Fuel Cell Sci. Technol (November,2005)
Entropy Based Design of Fuel Cells
J. Fuel Cell Sci. Technol (May,2006)
Water Balance in PEM and Direct Methanol Fuel Cells
J. Fuel Cell Sci. Technol (February,2005)
Related Chapters
Physiology of Human Power Generation
Design of Human Powered Vehicles
Thermodynamic Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential