Bipolar plate research using Computational Fluid Dynamics and neutron radiography for proton exchange membrane fuel cells |
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| Affiliation: | 1. Thermal Engineering Group, Energy Engineering Department, School of Engineering, Universidad de Sevilla. Camino de Los Descubrimientos, s/n, 41092, Sevilla, Spain;2. AJUSA Hydrogen Technologies, Parque Empresarial Ajusa, Calle 1, Nº1, 02006 Albacete, Spain;3. Electrochemistry Laboratory (LEC), Paul Scherrer Institut (PSI), 5232 Villigen PSI, Switzerland;4. Laboratory for Neutron Scattering and Imaging (LNS), Paul Scherrer Institut (PSI), 5232 Villigen PSI, Switzerland;1. Departamento de Investigación y Desarrollo de Energías Renovables (CITEDEF-EST), San Juan Bautista de La Salle 4397, Villa Martelli B1603ALO, Provincia de Buenos Aires, Argentina;2. Laboratorio de Simulación y Diseño, Escuela Superior Técnica del Ejército General Manuel Nicolás Savio, Cabildo 15, C1426AAA Ciudad Autónoma de Buenos Aires, Argentina;3. Escuela Superior Técnica del Ejército General Manuel Nicolás Savio, CITEDEF-EST, Cabildo 15, C1426AAA Ciudad Autónoma de Buenos Aires, Argentina;1. Electrochemical Innovation Lab (EIL), Department of Chemical Engineering, University College London, London, WC1E 7JE, United Kingdom;2. EPSRC “Frontier Engineering” Centre for Nature Inspired Engineering & Department of Chemical Engineering, University College London, London, WC1E 7JE, United Kingdom;3. Advanced Propulsion Lab (APL), University College London, London, WC1E 7JE, United Kingdom;4. Helmholtz-Zentrum Berlin (HZB), Hahn-Meitner-Platz 1, 14109, Berlin, Germany;1. AICIA-School of Engineering, Thermal Engineering Group, Camino de los Descubrimientos s/n, 41092 Sevilla, Spain;2. Electrochemistry Laboratory (LEC), Paul Scherrer Institut (PSI), CH-5232 Villigen, Switzerland;3. Neutron Imaging and Activation Group (NIAG), Paul Scherrer Institut (PSI), CH-5232 Villigen, Switzerland;4. Thermal Engineering Group, Energy Engineering Department, School of Engineering, University of Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, Spain;1. AICIA, School of Engineering, Sevilla, Spain;2. Electrochemistry Laboratory (LEC) and Neutron Imaging and Activation Group (NIAG), Paul Scherrer Institut (PSI), Switzerland;3. Thermal Engineering Group, Energy Engineering Department, School of Engineering, University of Sevilla, Spain |
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| Abstract: | This work presents the development of liquid-cooled industry-scale bipolar plates for improved water management in PEM Fuel Cells. The methods used for the design development are based on Computational Fluid Dynamics (CFD) modelling and simulation, and Neutron Radiography experiments to analyse liquid water distributions within the cell for different operating conditions.A novel 140 cm2 bipolar plate was designed and manufactured on 0.1 mm thick stainless steel using pre-coated strip steel. CFD modelling carried out for the novel design predicted a significant improvement in terms of cell performance, as well as a more uniform temperature distribution within the membrane. Liquid water distributions were later analysed by neutron radiography experiments, defining a set of different operating conditions (current density, stoichiometry, inlet gases dew point, and cell temperature).Electrochemical and neutron radiography results are presented for all cases and the influence of the operating conditions is discussed. Liquid water distributions within the cell are also analysed and compared against the CFD model results obtained. The influence of the gas flow configuration (reactant gases and cooling water) is clearly observable in the results. |
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| Keywords: | Bipolar plate PEM Fuel cell CFD Numerical model Neutron radiography Water management |
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