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https://hdl.handle.net/10216/103054
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DC Field | Value | Language |
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dc.creator | Luis C. Pérez | |
dc.creator | Adélio Mendes | |
dc.creator | Pauli Koski | |
dc.creator | Jari Ihonen | |
dc.creator | José M. Sousa | |
dc.date.accessioned | 2022-09-08T21:29:34Z | - |
dc.date.available | 2022-09-08T21:29:34Z | - |
dc.date.issued | 2014 | |
dc.identifier.issn | 0378-7753 | |
dc.identifier.other | sigarra:93854 | |
dc.identifier.uri | https://hdl.handle.net/10216/103054 | - |
dc.description.abstract | The 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.iso | eng | |
dc.relation | info:eu-repo/grantAgreement/COMISSÃO EUROPEIA/7.º Programa-Quadro de IDT/621196//FluidCELL | |
dc.rights | restrictedAccess | |
dc.subject | Engenharia química, Engenharia química | |
dc.subject | Chemical engineering, Chemical engineering | |
dc.title | Effect of fuel utilization on the carbon monoxide poisoning dynamics of Polymer Electrolyte Membrane Fuel Cells | |
dc.type | Artigo em Revista Científica Internacional | |
dc.contributor.uporto | Faculdade de Engenharia | |
dc.identifier.doi | 10.1016/j.jpowsour.2014.02.016 | |
dc.identifier.authenticus | P-009-BXQ | |
dc.subject.fos | Ciências da engenharia e tecnologias::Engenharia química | |
dc.subject.fos | Engineering and technology::Chemical engineering | |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
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93854.pdf Restricted Access | Artigo original publicado | 1.22 MB | Adobe PDF | Request a copy from the Author(s) |
93854.1.pdf | Post-Print version | 726.45 kB | Adobe PDF | View/Open |
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