Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/103054
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dc.creatorLuis C. Pérez
dc.creatorAdélio Mendes
dc.creatorPauli Koski
dc.creatorJari Ihonen
dc.creatorJosé M. Sousa
dc.date.accessioned2022-09-08T21:29:34Z-
dc.date.available2022-09-08T21:29:34Z-
dc.date.issued2014
dc.identifier.issn0378-7753
dc.identifier.othersigarra:93854
dc.identifier.urihttps://hdl.handle.net/10216/103054-
dc.description.abstractThe effect of fuel utilization on the poisoning dynamics by carbon monoxide (CO) is studied for future automotive conditions of Polymer Electrolyte Membrane Fuel Cells (PEMFC). Three fuel utilizations are used, 70%, 40% and 25%. CO is fed in a constant concentration mode of 1 ppm and in a constant molar flow rate mode (CO concentrations between 0.18 and 0.57 ppm). The concentrations are estimated on a dry gas basis. The CO concentration of the anode exhaust gas is analyzed using gas chromatography. CO is detected in the anode exhaust gas almost immediately after it is added to the inlet gas. Moreover, the CO concentration of the anode exhaust gas increases with the fuel utilization for both CO feed modes. It is demonstrated that the lower the fuel utilization, the higher the molar flow rate of CO at the anode outlet at early stages of the CO poisoning. These results suggest that the effect of CO in PEMFC systems with anode gas recirculation is determined by the dynamics of its accumulation in the recirculation loop. Consequently, accurate quantification of impurities limits in current fuel specification (ISO 14687-2:2012) should be determined using anode gas recirculation.
dc.language.isoeng
dc.relationinfo:eu-repo/grantAgreement/COMISSÃO EUROPEIA/7.º Programa-Quadro de IDT/621196//FluidCELL
dc.rightsrestrictedAccess
dc.subjectEngenharia química, Engenharia química
dc.subjectChemical engineering, Chemical engineering
dc.titleEffect of fuel utilization on the carbon monoxide poisoning dynamics of Polymer Electrolyte Membrane Fuel Cells
dc.typeArtigo em Revista Científica Internacional
dc.contributor.uportoFaculdade de Engenharia
dc.identifier.doi10.1016/j.jpowsour.2014.02.016
dc.identifier.authenticusP-009-BXQ
dc.subject.fosCiências da engenharia e tecnologias::Engenharia química
dc.subject.fosEngineering and technology::Chemical engineering
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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