Mechanics & Industry
Volume 13, Number 4, 2012
|Page(s)||255 - 260|
|Published online||31 October 2012|
Heat fluxes and electrodes temperature in a proton exchange membrane fuel cell
Universitéde Lorraine, LEMTA, UMR 7563, 54504 Vandoeuvre-lès-Nancy, France
a Corresponding author: firstname.lastname@example.org
Received: 6 July 2012
Accepted: 29 August 2012
Measurement of heat fluxes and electrodes temperature in a proton exchange membrane fuel cell were performed using platinum wires and heat flux sensors. A temperature difference of 6 °C to 9 °C between the electrodes and the bipolar plates was observed for a cell operating at a current density of 1.5 A.cm-2. These measurements show a strong non-uniformity of the temperature profile through the membrane electrode assembly that future models should take into account. Simultaneous heat fluxes measurements have allowed to evaluate in situ the effective thermal conductivity of the porous layers. Values of the order of 0.3 W.m-1.K-1 were found.
Key words: Electrodes temperature / platinum wires / heat fluxes / fuel cell / PEMFC
© AFM, EDP Sciences 2012
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