Numerical Investigation of Convergent and Divergent Parallel Flow Fields for PEMFCs

dc.contributor.authorTimurkutluk B.
dc.contributor.authorChowdhury M.Z.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2018
dc.departmentNiğde ÖHÜ
dc.description.abstractIn this study, the classical parallel flow field pattern is modified by a convergent and divergent design concept for proton exchange membrane fuel cells (PEMFCs). The modification is achieved by varying the channel depth with different constant inclination gradients from the inlet to the outlet, along with the bipolar plate width which creates either a convergent or divergent flow field depending on the position of the inlet and outlet selected. The numerical model is solved to predict the cell performance including the mass transport, water vapor concentration and, pressure and current density distribution for the flow fields. The numerical results reveal that the modified convergent parallel flow fields have a better mass transport and water removal characteristics than those in the conventional one, whereas mal-distribution of species and excessive water concentration occur in the conventional and divergent parallel flow fields. Introducing convergent parallel flow field design concept not only minimizes these issues but the cell power density is also improved by a maximum of 16%, which can show a new window in PEMFC flow field design concept. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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.doi10.1002/fuce.201800029
dc.identifier.endpage448
dc.identifier.issn1615-6846
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85050525115
dc.identifier.scopusqualityQ2
dc.identifier.startpage441
dc.identifier.urihttps://dx.doi.org/10.1002/fuce.201800029
dc.identifier.urihttps://hdl.handle.net/11480/1623
dc.identifier.volume18
dc.identifier.wosWOS:000441242200010
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherJohn Wiley and Sons Ltd
dc.relation.ispartofFuel Cells
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCurrent Density
dc.subjectFlow Field Design
dc.subjectMass Transport
dc.subjectProton Exchange Membrane Fuel Cells
dc.subjectWater Concentration
dc.titleNumerical Investigation of Convergent and Divergent Parallel Flow Fields for PEMFCs
dc.typeArticle

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