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dc.date.accessioned 2021-10-22T16:29:13Z
dc.date.available 2021-10-22T16:29:13Z
dc.date.issued 2014-03-04
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/127136
dc.description.abstract The work presented in this article combines experimental analysis and theoretical studies of temperature effects on the performance of an open-cathode, self-humidified PEM fuel cell system for the design of optimal control strategies. The experimental analysis shows the great potential of improving the system performance by proper thermal management. The most significant temperature dependent parameter of the system under study is the exchange current density. On the one hand it is influenced positively by a temperature increase as this lowers the activation barrier. On the other hand a higher temperature causes a reduction of the electrochemical active sites in the cathode catalyst layer (CCL) due to lower water content in the ionomer and primary pores. Dynamic models for fuel cell temperature, liquid water transport and the related electrochemistry have been developed and validated against the experiment. A cascaded Extremum Seeking control algorithm with a local PI controller is proposed to regulate the temperature to a fuel cell voltage maximum. However, the slow dynamics of the temperature related catalyst-drying effect on performance complicate the optimal thermal management with model-free control strategies. en
dc.format.extent 466-478 es
dc.language en es
dc.subject PEMFC es
dc.subject Open-cathode es
dc.subject Temperature experiments es
dc.subject Catalyst performance modeling es
dc.subject Extremum seeking control es
dc.title Performance improvement by temperature control of an open-cathode PEM fuel cell system en
dc.type Articulo es
sedici.identifier.other doi:10.1002/fuce.201300211 es
sedici.identifier.issn 1615-6846 es
sedici.identifier.issn 1615-6854 es
sedici.creator.person Strahl, S. es
sedici.creator.person Husar, A. es
sedici.creator.person Puleston, Pablo Federico es
sedici.creator.person Riera, J. es
sedici.subject.materias Ingeniería es
sedici.description.fulltext true es
mods.originInfo.place Instituto de Investigaciones en Electrónica, Control y Procesamiento de Señales es
sedici.subtype Preprint es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.relation.event Fundamentals & Developments of Fuel Cells Conference 2013 (FDFC2013) (Alemania, 16 al 18 de abril de 2013) es
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Fuel Cells es
sedici.relation.journalVolumeAndIssue vol. 14, no. 3 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)