EDGAR FERRARI DA CUNHA
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Artigo IPEN-doc 23187 CFD analysis of PEMFC flow channel cross sections2017 - PAULINO, A.L.R.; CUNHA, E.F.; ROBALINHO, E.; LINARDI, M.; KORKISCHKO, I.; SANTIAGO, E.I.This paper presents a study of single-channel proton exchange membrane fuel cells (PEMFCs) using computational modeling and simulation. For this analysis, the commercial software COMSOL Multiphysics was used to build a single-phase isothermal and tridimensional fuel cell model. For the mathematical description of the catalyst layer, the flooded agglomerate model was implemented, and it proved to be more accurate than Butler-Volmer model, which is the pre-built model in the software. Such evidence was verified when comparing the polarization curves obtained using both models with an experimental curve. After definition of the model, the main objective of this study was to analyze the influence of the flow channel cross-section in the water distribution inside the cell, studying rectangular, trapezoidal and hybrid stepped geometries. The fuel cell with stepped channel was equivalent to the trapezoidal cell in all aspects analyzed, and both provided superior water management than the rectangular cell. However, the current generation in the rectangular design was slightly higher. It was noted that the simulation of a tridimensional model provided a better understanding of the regions where higher concentrations of water can occur, and that different flow channel designs can be used to enhance water management.Artigo IPEN-doc 22362 PEM fuel cell: numerical sensoring with CFD2014 - ROBALINHO, ERIC; CUNHA, EDGAR F.; LINARDI, MARCELOResumo IPEN-doc 20651 Estudo teórico-experimental de otimização de componentes de células a combustível do tipo PEM de alta eficiência2014 - ISIDORO, ROBERTA A.; PAULINO, ANDRE L.R.; ROBALINHO, ERIC; CUNHA, EDGAR F.; PASSOS, RAIMUNDO R.; SANTIAGO, ELISABETE I.Resumo IPEN-doc 18582 First experiences in building and testing a brazilian 500 we PEMFC stack2012 - CUNHA, E.F.; LINARDI, M.Resumo IPEN-doc 12389 Application of CFD techniques in the modeling and simulation of PEN fuel cell[ s flow channels2007 - CUNHA, EDGAR F.; ANDRADE, ALEXANDRE B.; ROBALINHO, ERIC; BEJARANO, MARTHA L.M.; CEKINSKI, EFRAIM; LINARDI, MARCELOArtigo IPEN-doc 13989 Fabrication of high precision PEFC membrane electrode assemblies by sieve printing method2007 - ANDRADE, ALEXANDRE B.; BEJARANO, MARTHA L.M.; CUNHA, EDGAR F.; ROBALINHO, ERIC; LINARDI, MARCELOArtigo IPEN-doc 13974 COMSOL modeling and simulation of PEM fuel cells flow channels2007 - ROBALINHO, ERIC; CUNHA, EDGAR F.; ANDRADE, ALEXANDRE B.; BEJARANO, MARTHA L.M.; LINARDI, MARCELO; CEKINSKI, EFRAIMArtigo IPEN-doc 12179 Modelling and simulation of pem fuel cell's flow channels using CFD techiniques2007 - CUNHA, EDGAR F.; ANDRADE, ALEXANDRE B.; ROBALINHO, ERIC; BEJARANO, MARTHA L.M.; LINARDI, MARCELO; CEKINSKI, EFRAIMArtigo IPEN-doc 19904 Modeling of liquid water distribution at cathode gas flow channels in proton exchange membrane fuel cell - PEMFC2013 - SKODA, SANDRO; ROBALINHO, ERIC; PAULINHO, ANDRE L.R.; CUNHA, EDGAR F.; LINARDI, MARCELOArtigo IPEN-doc 19712 Current distribution on PEM fuel cells with different flow channel patterns2013 - PAULINO, ANDRE L.R.; ROBALINHO, ERIC; CUNHA, EDGAR F.; PASSOS, RAIMUNDO R.; SANTIAGO, ELISABETE I.