HumidityandtemperaturehaveanessentialinﬂuenceonPEMfuelcellsystemperformance. Thewatercontentwithinthepolymericmembraneisimportantforenhancingprotonconductionand achievinghighefﬁciencyofthesystem. Thecombinationofnon-stationaryoperationrequestsandthe variabilityofenvironmentconditionsposesanimportantchallengetomaintainingoptimalmembrane hydration. Thispaperpresentsahumidiﬁcationandthermalcontrolsystem,topreventthemembrane from drying. The main characteristics of such a device are small size and weight, compactness and robustness, easy implementation on commercial fuel cell, and low power consumption. In particular, the NTHS method was studied in a theoretical approach, tested and optimized in a laboratory and ﬁnally applied to a PEMFC of 1 kW that supplied energy for the prototype vehicle IDRA at the Shell Eco-Marathon competition. Using a speciﬁc electronic board, which controls several variables and decides the optimal reaction air ﬂow rate, the NTHS was managed. Furthermore, the effects of membrane drying and electrode ﬂooding were presented.
Nafion tubing humidification system for polymer electrolyte membrane fuel cells / Ferraris, A.; Messana, A.; Airale, A. G.; Sisca, L.; de Carvalho Pinheiro, H.; Zevola, F.; Carello, M.. - In: ENERGIES. - ISSN 1996-1073. - ELETTRONICO. - 12:9(2019), p. 1773.
|Titolo:||Nafion tubing humidification system for polymer electrolyte membrane fuel cells|
|Data di pubblicazione:||2019|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.3390/en12091773|
|Appare nelle tipologie:||1.1 Articolo in rivista|