Through-plane thermal conductivity of 14 SIGRACET gas diffusion layers (GDLs), including series 24 & 34, as well as 25 & 35, are measured under different compressive pressures, ranging from 2 to 14 bar, at the temperature of around 60 °C. The effect of compression, PTFE loadings, and micro porous layer (MPL) on thermal conductivity of the GDLs and their contact resistance with an iron clamping surface is experimentally investigated. The contact resistance of MPL coated on GDL with the substrate of that GDL is measured for the first time in this paper. A new robust mechanistic model is presented for predicting the through-plane thermal conductivity of GDLs treated with PTFE and is successfully verified with the present experimental data. The model can predict the experimentally-observed reduction in thermal conductivity as a result of PTFE treatment and provides detailed insights on performance modeling of PEMFCs.
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ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 7th International Conference on Energy Sustainability
July 14–19, 2013
Minneapolis, Minnesota, USA
Conference Sponsors:
- Advanced Energy Systems Division
- Solar Energy Division
ISBN:
978-0-7918-5552-2
PROCEEDINGS PAPER
Effect of PTFE on Thermal Conductivity of Gas Diffusion Layers of PEM Fuel Cells Available to Purchase
Hamidreza Sadeghifar,
Hamidreza Sadeghifar
Simon Fraser University, Surrey, BC, Canada
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Ned Djilali,
Ned Djilali
University of Victoria, Victoria, BC, Canada
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Majid Bahrami
Majid Bahrami
Simon Fraser University, Surrey, BC, Canada
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Hamidreza Sadeghifar
Simon Fraser University, Surrey, BC, Canada
Ned Djilali
University of Victoria, Victoria, BC, Canada
Majid Bahrami
Simon Fraser University, Surrey, BC, Canada
Paper No:
FuelCell2013-18070, V001T01A003; 11 pages
Published Online:
December 22, 2013
Citation
Sadeghifar, H, Djilali, N, & Bahrami, M. "Effect of PTFE on Thermal Conductivity of Gas Diffusion Layers of PEM Fuel Cells." Proceedings of the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 7th International Conference on Energy Sustainability. ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. Minneapolis, Minnesota, USA. July 14–19, 2013. V001T01A003. ASME. https://doi.org/10.1115/FuelCell2013-18070
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