Numerical evaluation of a PEM fuel cell with conventional flow fields adapted to tubular plates

Sierra, J.M.; Figueroa-Ramírez, Sandra J.; Díaz, Sergio; Vargas, Joel; Sebastian, P.J.

doi:10.1016/j.ijhydene.2014.04.078

Cited by 53 publications

(23 citation statements)

References 17 publications

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“…The governing set of equations used in solving the computational model in this study was discussed by Sierra et al [ 14 ]. These equations set listed in Table 3 commensurate to energy, species, charge, mass conservation, momentum charge transport equations.…”

Section: Mathematical Modellingmentioning

confidence: 99%

“…The simulation result demonstrated that if the channel width is increased, then the limiting current density will improve. A CFD investigation on a PEM fuel cell was conducted in order to examine the performance of three different conventional flow channels modify to tubular plates by Sierra et al [ 14 ]. The fluid dynamics equation solution, CFD electrochemical model and different variables of distribution contours were obtained.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Fuel Cell Performance Using Computational Fluid Dynamics

et al. 2021

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A low cost bipolar plate materials with a high fuel cell performance is important for the establishment of Proton Exchange Membrane (PEM ) fuel cells into the competitive world market. In this research, the effect of different bipolar plates material such as Aluminum (Al), Copper (Cu), and Stainless Steel (SS) of a single stack of proton exchange membrane (PEM) fuel cells was investigated both numerically and experimentally. Firstly, a three dimensional (3D) PEM fuel cell model was developed, and simulations were conducted using commercial computational fluid dynamics (CFD) ANSYS FLUENT to examine the effect of each bipolar plate materials on cell performance. Along with cell performance, significant parameters distributions like temperature, pressure, a mass fraction of hydrogen, oxygen, and water is presented. Then, an experimental study of a single cell of Al, Cu, and SS bipolar plate material was used in the verification of the numerical investigation. Finally, polarization curves of numerical and experimental results was compared for validation, and the result shows that Al serpentine bipolar plate material performed better than Cu and SS materials. The outcome of the investigation was in tandem to the fact that due to adsorption on metal surfaces, hydrogen molecules is more stable on Al surface than Cu and SS surfaces.

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Section: Mathematical Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of Fuel Cell Performance Using Computational Fluid Dynamics

et al. 2021

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“…For example, M. A. Quiroga et al [48] developed a multi-paradigm model of the chemical degradation mainly for membrane in PEMFCs, which was able to simulate both PEM structural changes and performance evolution. Viscous resistance and porosity are taken as 4.0 10 12 and 0.2 [50], respectively, for a degraded cell, whereas assumed to be 1.0 10 12 and 0.5 [51] for a fresh cell. Therefore, three factors: viscous resistance and porosity of porous media, membrane equivalent weight are investigated.…”

Section: Gas Purge Of Degraded Fuel Cellmentioning

confidence: 99%

Three‐dimensional Modeling of Gas Purge in a Polymer Electrolyte Membrane Fuel Cell with Co‐flow and Counter‐flow Pattern

2017

Fuel Cells

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Gas purge is commonly utilized to minimize residual water after shutdown of proton exchange membrane fuel cell (PEMFC) in cold weather, aiming to reduce damage of ice formation on cell performance and durability. In this paper, a three‐dimensional multiphase gas purge model of proton exchange membrane fuel cell with co‐flow and counter‐flow pattern is established to investigate water removal characteristics using two‐fluid model. The present model mainly includes water transport in membrane, mass transfer between dissolved water and water vapor in catalyst layer (CL), phase change between liquid water and water vapor in porous media. Several cases with co‐flow and counter‐flow pattern have been investigated numerically. In the last, gas purge time comparison between a fresh cell and degraded cell is conducted. The numerical results show that counter‐flow pattern is better in keeping even water content distribution and avoiding over‐drying of membrane. Time constant for gas purge is different in terms of different final target value: water vapor, liquid water saturation, membrane water content. Degraded cells have 2 more seconds than fresh cells when cell temperature is 80 °C and velocity of purge gas 1m s−1.

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“…This design showed a higher performance than the parallel and serpentine one alone [11]. The serpentine flow-field displayed most uniform gas distribution and less current density with cylindrical geometry compared to a conventional cell [14]. The double channel performed better with high humidity ratio at the inlet and the channel design had no importance when using low humidity ratio at the inlet [12].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Spiral Flow‐Field Design on the Performance of a PEM Fuel Cell

2017

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Polymer exchange membrane fuel cells (PEMFCs) are promising energy converters due to their unique features with an application potential for many sectors. The performance of PEM fuel cells depends on a number of factors, one of which is suitable flow‐field design. In this study, the effect of spiral flow‐field design is investigated with computational fluid dynamics (CFD) method. The model consists of the transport phenomena in a fuel cell. Electrochemical reactions, mass, heat, energy, species transport, and potential fields equations are solved by ANSYS‐FLUENT. The polarization and power density curve, temperature, pressure, and distributions of the gases inside the flow‐fields were obtained. The results were compared with the reference geometry. Although the spiral flow‐field has considerable ohmic losses, the velocity and pressure distributions of the gases are found to be uniform. Furthermore, it is shown that the spiral flow‐field reduces the pressure drop per unit length of the flow‐field. When compared to other flow‐field designs, the spiral flow‐field is found to be quite efficient by means of auxiliary power consumption.

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Numerical evaluation of a PEM fuel cell with conventional flow fields adapted to tubular plates

Cited by 53 publications

References 17 publications

Optimization of Fuel Cell Performance Using Computational Fluid Dynamics

Optimization of Fuel Cell Performance Using Computational Fluid Dynamics

Three‐dimensional Modeling of Gas Purge in a Polymer Electrolyte Membrane Fuel Cell with Co‐flow and Counter‐flow Pattern

Investigation of Spiral Flow‐Field Design on the Performance of a PEM Fuel Cell

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