Voltage Readjustment Methodology According to Pressure and Temperature Applied to a High Temperature PEM Fuel Cell

Mathieu Baudy, Olivier Rondeau, Amine Jaafar, Christophe Turpin, Sofyane Abbou and Mélanie Grignon
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Mathieu Baudy: LAPLACE—Laboratoire Plasma et Conversion d’énergie Université de Toulouse, CNRS—Centre National de la Recherche Scientifique, Toulouse INP—Institut National Polytechnique de Toulouse, UPS—Université Paul Sabatier, F-31077 Toulouse, France
Olivier Rondeau: Safran Power Units, F-31019 Toulouse, France
Amine Jaafar: LAPLACE—Laboratoire Plasma et Conversion d’énergie Université de Toulouse, CNRS—Centre National de la Recherche Scientifique, Toulouse INP—Institut National Polytechnique de Toulouse, UPS—Université Paul Sabatier, F-31077 Toulouse, France
Christophe Turpin: LAPLACE—Laboratoire Plasma et Conversion d’énergie Université de Toulouse, CNRS—Centre National de la Recherche Scientifique, Toulouse INP—Institut National Polytechnique de Toulouse, UPS—Université Paul Sabatier, F-31077 Toulouse, France
Sofyane Abbou: Safran Power Units, F-31019 Toulouse, France
Mélanie Grignon: LAPLACE—Laboratoire Plasma et Conversion d’énergie Université de Toulouse, CNRS—Centre National de la Recherche Scientifique, Toulouse INP—Institut National Polytechnique de Toulouse, UPS—Université Paul Sabatier, F-31077 Toulouse, France

Energies, 2022, vol. 15, issue 9, 1-17

Abstract: The operating conditions can have uncontrolled effects on the voltage of a High-Temperature Proton Exchange Membrane Fuel Cell (HT-PEMFC). For instance, the HT-PEMFC can be used at ambient pressure, i.e., without having a back pressure regulator. In this case, the variation in the atmospheric pressure directly affects pressures inside the fuel cell, which induces voltage variation. Moreover, in transient phases, several coupled phenomena can have an uncontrolled effect on the voltage. For example, following a change in the current operating point, thermal conditions in the fuel cell can vary, and the temperature stabilization then leads to a voltage variation. This article introduces a readjustment method for the fuel cell voltage to compensate for the effects of the pressure and temperature variations that are undergone and to decouple their effects. This methodology is based on the realization of a design of experiments to characterize the voltage sensitivity to pressure ([1; 1.5 bar]) and temperature ([120; 180 °C]) between 0.2 and 1 A/cm 2 of an Advent PBI MEA (formerly BASF Celtec ® -P 1100 W). The data obtained allowed identifying an empirical model that takes into account the aging caused by the experiment. Finally, the methodology is criticized before proposing an alternative method.

Keywords: hydrogen; fuel cells; high temperature PEMFC; more electric aircraft; operating conditions; design of experiments; readjustment method; atmospheric pressure (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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