Accurate information on the temperature field and associated heat transfer rates are particularly important in devising appropriate heat and water management strategies in proton exchange membrane (PEM) fuel cells. An important parameter in fuel cell performance analysis is the effective thermal conductivity of the gas diffusion layer (GDL). Estimation of the effective thermal conductivity is complicated because of the random nature of the GDL micro structure. In the present study, a compact analytical model for evaluating the effective thermal conductivity of fibrous GDLs is developed. The model accounts for the salient geometric features, effects of bipolar pressure variation, gas rarefaction effects, and spreading resistance. The model predictions are in good agreement with existing experimental data over a wide range of porosities. Parametric studies are performed using the proposed model to investigate the effect of bipolar plate pressure, aspect ratio, fiber diameter, fiber angle, and operating temperature.
Skip Nav Destination
ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences
August 10–14, 2008
Jacksonville, Florida, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4847-0
PROCEEDINGS PAPER
A Compact Thermal Resistance Model for Determining Effective Thermal Conductivity in the Fibrous Gas Diffusion Layers of Fuel Cells
E. Sadeghi,
E. Sadeghi
University of Victoria, Victoria, BC, Canada
Search for other works by this author on:
M. Bahrami,
M. Bahrami
University of Victoria, Victoria, BC, Canada
Search for other works by this author on:
N. Djilali
N. Djilali
University of Victoria, Victoria, BC, Canada
Search for other works by this author on:
E. Sadeghi
University of Victoria, Victoria, BC, Canada
M. Bahrami
University of Victoria, Victoria, BC, Canada
N. Djilali
University of Victoria, Victoria, BC, Canada
Paper No:
HT2008-56158, pp. 439-447; 9 pages
Published Online:
July 7, 2009
Citation
Sadeghi, E, Bahrami, M, & Djilali, N. "A Compact Thermal Resistance Model for Determining Effective Thermal Conductivity in the Fibrous Gas Diffusion Layers of Fuel Cells." Proceedings of the ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. Heat Transfer: Volume 1. Jacksonville, Florida, USA. August 10–14, 2008. pp. 439-447. ASME. https://doi.org/10.1115/HT2008-56158
Download citation file:
8
Views
Related Proceedings Papers
Related Articles
Effect of Clamping Load on the Performance of Proton Exchange Membrane Fuel Cell Stack and Its Optimization Design: A Review of Modeling and Experimental Research
J. Fuel Cell Sci. Technol (April,2014)
Anisotropic Heat Conduction Effects in Proton-Exchange Membrane Fuel Cells
J. Heat Transfer (September,2007)
Related Chapters
Experimental Investigation of an Improved Thermal Response Test Equipment for Ground Source Heat Pump Systems
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
Thermodynamic Measurements
Metrology and Instrumentation: Practical Applications for Engineering and Manufacturing
The Latest Hot CD
Hot Air Rises and Heat Sinks: Everything You Know about Cooling Electronics Is Wrong