Transport phenomena of convergent and divergent serpentine flow fields for PEMFC

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dc.contributor.authorChowdhury M.Z.
dc.contributor.authorTimurkutluk B.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2018
dc.departmentNiğde ÖHÜ
dc.description.abstractReactive species and water transport are crucial for the proton exchange membrane fuel cell operation and performance, and for this, effective flow field design can facilitate the desired transport characteristics of species. From this motivation, the conventional single serpentine flow field pattern is modified by convergent and divergent design concepts and the complex transport phenomena of the newly developed flow field designs are investigated by a numerical approach. For the numerical analyses, an experimentally validated mathematical model is developed to predict the current density, oxygen mass transport, water concentration and pressure distribution. The different configurations of modified convergent and divergent serpentine flow fields are then numerically solved and the results are compared with the conventional serpentine flow field pattern. The transport of reactive species and water concentration are analyzed from the different perspectives including cathode domains and surfaces with a quantitative formulation of the transport species. The numerical results reveals that the modified convergent serpentine flow fields yield to a uniform current density due to the lower mass fraction of water concentration over the reaction zone facilitating better oxygen mass transport and also higher channel pressure distribution along the flow field comparing the conventional and divergent type serpentine flow fields. © 2018 Elsevier Ltd
dc.description.sponsorshipFirat University Scientific Research Projects Management Unit
dc.description.sponsorshipThis research supported by Nigde Omer Halisdemir University Scientific Research Projects Coordination Unit under a project number of FEB2016/31 -YULTEP is gratefully acknowledged.
dc.identifier.doi10.1016/j.energy.2018.07.143
dc.identifier.endpage117
dc.identifier.issn0360-5442
dc.identifier.scopus2-s2.0-85053118164
dc.identifier.scopusqualityQ1
dc.identifier.startpage104
dc.identifier.urihttps://dx.doi.org/10.1016/j.energy.2018.07.143
dc.identifier.urihttps://hdl.handle.net/11480/1596
dc.identifier.volume161
dc.identifier.wosWOS:000446148400012
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherElsevier Ltd
dc.relation.ispartofEnergy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCurrent distribution
dc.subjectFlow field design
dc.subjectOxygen mass transport
dc.subjectPressure distribution
dc.subjectProton exchange membrane fuel cells
dc.subjectWater concentration
dc.titleTransport phenomena of convergent and divergent serpentine flow fields for PEMFC
dc.typeArticle

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