A numerical modeling study on the influence of catalyst loading distribution on the performance of Polymer Electrolyte Membrane Fuel Cell

Havaej, P.; Kermani, M.J.; Abdollahzadeh, M.; Heidary, H.; Moradi, A.

doi:10.1016/j.ijhydene.2018.04.063

Cited by 30 publications

(17 citation statements)

References 56 publications

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“…We can mention some studies that we relied on to arrive at our results. P.Havaej [35] utilized a two-phase, multicomponent, transient, and three-dimensional model for simulating the performance of the PEMFC. In the first step, the best longitudinal catalyst loading distribution was found.…”

Section: Discussionmentioning

confidence: 99%

Flow Analysis Based on Cathodic Current Using Different Designs of Channel Distribution In PEM Fuel Cells

et al. 2019

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In this work, a physical and numerical simulation of cathodic current for different designs of the channel distribution in PEM fuel cells was carried out. The first design consisted serpentine-type channels with abrupt changes in flow direction. On the other hand, Designs 2 and 3 were made of serpentine channels with a more gradual change in flow direction. The fourth design was a crisscross-type channel, which was based on continually redirecting the flow, while Design 5 was made with straight parallel channels. Designs 1–3 had one intake, while Designs 4 and 5 had three. The latter two produced more uniform electrical current distributions than Designs 1–3. It can be concluded that the intakes situated effectively within each design were as important as the shape of the channel configuration. Finally, the parallel channel flow field (Design 5) was the best alternative for current collectors due to its better performance.

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Section: Discussionmentioning

confidence: 99%

Flow Analysis Based on Cathodic Current Using Different Designs of Channel Distribution In PEM Fuel Cells

et al. 2019

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“…In Equations (27) and 28, is the loss of activation, R is the universal gas constant, F is the constant of Faraday, i ref 0 is the reference for the exchange of current density, and c and a are the coefficients of cathodic and anodic transfer, respectively. 22 Besides, a s is a symbol of the total surface area of catalyst per unit volume of cathode in the considered CL.…”

Section: Catalyst Layermentioning

confidence: 99%

“…Here, a 0 is the total area per unit mass of the catalyst. The catalyst loading gradient is exerted by h(x) as an added function of loading distribution of catalyst to Equation (27). It should be noted that the total quantity of catalyst in all test cases remains constant.…”

Section: Catalyst Layermentioning

confidence: 99%

“…After that, it falls down to the smallest amount at the most downstream section of the CL. According to Equation (27), the oxygen concentration and the generated current are directly correlated. Therefore, a decrement in the fuel cell efficiency due to reduction in oxygen concentration could be expected.…”

Section: Reactant Distribution and Current Densitymentioning

confidence: 99%

“…Governing equations Equations (1), (3), (13), (19) Equations (26)(27)(28)(29) Boundary conditions Equations (44)(45)(46)(47) Equations (32)(33)(34)(35) Unknown variables…”

Section: Gdl and Channel Catalyst Layermentioning

confidence: 99%

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Nonisothermal two‐phase modeling of the effect of linear nonuniform catalyst layer on polymer electrolyte membrane fuel cell performance

Sabzpoushan

Mosleh

Kavian

et al. 2020

Energy Science & Engineering

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The Role of Porous Carbon Inserts on the Performance of Polymer Electrolyte Membrane Fuel Cells: A Parametric Numerical Study

et al. 2022

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Herein, for the first time, a computational fluid dynamic study is performed to investigate the effects of using porous carbon inserts (PCI) on the performance of PEMFC. A 3D multiphase multicomponent model is developed to simulate the fuel cell performance. The effects of several geometric and physical parameters of the PCI, including porosity, size, and the arrangement of PCI in the landing area, are numerically examined, which are not investigated in the literature so far. The numerical results showed that using PCI, a 23% improvement in the fuel cell performance is achieved for the optimum case with 80% PCI. In addition, increasing the PCI porosity results in performance enhancement (12.6% improvement when increasing the porosity up to 0.8). Using PCI with different rib/channel width ratios demonstrates that the use of PCI at higher ratios has a more significant effect. When using 34.1% PCI in a case with a ratio of 2:1, the performance increases about 35%. Moreover, a PCI with larger longitudinal size (4 mm compared to 2 mm) shows higher performance enhancement (5.3% compared to 3.5%).

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A numerical modeling study on the influence of catalyst loading distribution on the performance of Polymer Electrolyte Membrane Fuel Cell

Cited by 30 publications

References 56 publications

Flow Analysis Based on Cathodic Current Using Different Designs of Channel Distribution In PEM Fuel Cells

Flow Analysis Based on Cathodic Current Using Different Designs of Channel Distribution In PEM Fuel Cells

Nonisothermal two‐phase modeling of the effect of linear nonuniform catalyst layer on polymer electrolyte membrane fuel cell performance

The Role of Porous Carbon Inserts on the Performance of Polymer Electrolyte Membrane Fuel Cells: A Parametric Numerical Study

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