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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mikkola, Mikko
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2008Thermal conductivity and contact resistance of compressed gas diffusion layer of PEM fuel cellcitations
- 2008Modelling the effect of inhomogeneous compression of GDL on local transport phenomena in a PEM fuel cellcitations
- 2004Water balance in a free-breathing polymer electrolyte membrane fuel cellcitations
- 2002Measurement of current distribution in a free-breathing PEMFCcitations
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article
Thermal conductivity and contact resistance of compressed gas diffusion layer of PEM fuel cell
Abstract
<p>This paper discusses the effect of compression pressure on the mechanical and thermal properties of gas diffusion layers (GDL). The stress-strain curve of the GDL revealed one nonlinear and two piecewise linear regions within the compression pressure range of 0-5.5 MPa. The thermal conductivity of the compressed GDL seems to be independent of the compression pressure and was determined to be 1.18 +/- 0.11 W m(-1) K-1 at room temperature. The thermal contact resistance between the GDL and graphite was evaluated by augmenting experiments with computer modelling. The thermal contact resistance decreased nonlinearly with increasing compression pressure. According to the results here, the thermal bulk resistance of the GDL is comparable to the thermal contact resistance between the GDL and graphite. A simple one-dimensional model predicted a temperature drop of 1.7-4.4 degrees C across the GDL and catalyst layer depending on compression pressures.</p>