Influence of porous carbon inserts on scaling up studies for performance enhancement on PEMFC

Palaniswamy, Karthikeyan; Marappan, Muthukumar; Jothi, Vasanth Rajendran

doi:10.1016/j.ijhydene.2015.10.148

Cited by 21 publications

(3 citation statements)

References 18 publications

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“…The benefits of flow fields inspired by honeycomb structures include reduced fluid resistance and material savings [77,78]. Although honeycomb structures are rarely used in PEMFCs, they are commonly employed in fuel cells (solid oxide) [78][79][80][81][82].…”

Section: Honeycomb-inspiredmentioning

confidence: 99%

The Effect of Flow Field Design Parameters on the Performance of PEMFC: A Review

et al. 2023

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Proton exchange membrane fuel cell is essentially utilized to generate energy with zero emission. There are many drawbacks in PEMFC, such as the mal-distribution of reactants, water management between the catalyst layer and the GDL, and the mass transport issue of reactants. Flow field design parameters can overcome these problems to improve cell performance. Where the flow field is an essential element of the fuel cell, and it is designed to provide the required amount of both hydrogen and oxygen with the lowest possible pressure drop on the anode and cathode sides, respectively. In this paper, the cell performance with different flow field design parameters, such as conventional flow field configuration, nature-inspired flow field configuration, and geometric parameters, as well as their modifications, is reviewed in detail. It has been demonstrated through the current review paper that the flow field design parameters can significantly affect the overall behavior of PEMFC, and each design parameter has advantages and disadvantages that make the flow fields suitable for specific applications.

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Section: Honeycomb-inspiredmentioning

confidence: 99%

The Effect of Flow Field Design Parameters on the Performance of PEMFC: A Review

et al. 2023

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“…The results indicated that employing porous interdigitated flow channel results in enhanced water removal from the landing area, which in turn improves the current density and higher power output density significantly. Karthikeyan et al [45,46] investigated the effects of carbon inserts arrangement on the fuel cell performance. Their experimental results revealed that the PEMFC with zigzag positioned porous carbon inserts (PCIs) increased the current and power densities by 8.7% and 20.6%, respectively, compared to the conventional serpentine flow field.…”

Section: Introductionmentioning

confidence: 99%

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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“…The effect of porous carbon inserts on fuel cells was analyzed by Palaniswamy et al 22 They reported that the capillary effect of the porous carbon insert promoted the removal of the accumulated liquid water from the channel. Compared with the conventional serpentine flow field, the power density of the improved PEMFC was increased by 20.6%.…”

Section: Introductionmentioning

confidence: 99%

Effect of cathode operation parameters on the performance of proton exchange membrane fuel cell with curved wing vortex generator by response surface method

Yang

Shi

Cui

et al. 2022

Energy Science & Engineering

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With the increasing popularity of fuel cells, improving their power density and the fuel cell system efficiency has become very topical. This study used the curved wing vortex generator to generate a secondary flow in the cathode flow channel to improve the performance of the proton exchange membrane fuel cell (PEMFC). The curved wing's structure and arrangement effects on the performance of fuel cells were numerically simulated. Next, to summarize the combined effects of cathode operating conditions on the performance of PEMFC, this study used the response surface method to assess the influence of operating conditions variables on the performance target of PEMFC with curved wings. The combined effects of cathode operating conditions, namely temperature, pressure, reactant stoichiometry, and relative humidity, on the system efficiency and power density of the fuel cell system were investigated.The predictive correlations between these variables were also fitted. The installation of curved wings promoted the diffusion of reactants, as well as improved the uniformity of temperature distribution and the discharge of liquid water in the fuel cell, enhancing its overall performance. Among the four operating parameters under study, the most significant effect on the fuel cell power density was provided by the temperature, followed by pressure, humidity, and reactant stoichiometry. The fuel cell efficiency was the most significantly improved by increasing the relative humidity, while temperature increase had the second-best impact, followed by pressure, and reactant stoichiometry.

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Influence of porous carbon inserts on scaling up studies for performance enhancement on PEMFC

Cited by 21 publications

References 18 publications

The Effect of Flow Field Design Parameters on the Performance of PEMFC: A Review

The Effect of Flow Field Design Parameters on the Performance of PEMFC: A Review

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

Effect of cathode operation parameters on the performance of proton exchange membrane fuel cell with curved wing vortex generator by response surface method

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