Experimental investigation and optimization of proton exchange membrane fuel cell using different flow fields

Najmi, Aezid-Ul-Hassan; Anyanwu, Ikechukwu S.; Xie, Xu; Liu, Zhi; Jiao, Kui

doi:10.1016/j.energy.2020.119313

Cited by 45 publications

(7 citation statements)

References 47 publications

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“…Their work results on the optimal flow channel are at minimum depth. The reaction inside the flow channel is observed more sensitive with relative humidity which showed by [16]. The experimental results shown at the increase in the humidity level, the performance of the cell increased.…”

Section: Introductionmentioning

confidence: 81%

Fuel Cell 3D Contour Simulation of Serpentine Flow Field Inside Cubic Channels

Morad¹,

Obeed²,

Khalaf³

2022

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9

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In this study, we described the behavior of the serpentine flow field inside the fuel of a proton exchange membrane fuel cell (PEMFC). Pressure drop, inlet velocity, oxygen and gas diffusion layer (GDL), and current density determine the design of the fuel cell. The other parameters predicted in the open literature, such as temperature, humidity, etc., are not taken into account here. COMSOL Multiphysics 5.4 Software was used to simulate and test the electrochemical reactions governing equations. Three inlet velocities and three of (1.5, 2.5, and 3.5 m/sec) cubic channels are used to show the effect of a turbulent flow without wall slip. By analyzing the results, it can be concluded that the serpentine flow field enhances the performance of fuel cells with cubic channel geometry. We found a good correlation between the current density and cell voltage at different inlet velocities.

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Section: Introductionmentioning

confidence: 81%

Fuel Cell 3D Contour Simulation of Serpentine Flow Field Inside Cubic Channels

Morad¹,

Obeed²,

Khalaf³

2022

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9

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“…Fuel cells are of several types, but the proton exchange membrane fuel cell (PEMFC) is the most preferred among all types because it has a simple design and high electrical efficiency [4]. A PEMFC is an electrochemical conversion apparatus that converts the chemical energy of fuel and an oxidizing agent (often hydrogen and oxygen, respectively) into electrical energy through redox reactions without undergoing intermediate stages and produces heat and water [5]. Water and heat management issues of PEMFC are essential issues that affect cell performance.…”

Section: Introductionmentioning

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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“…Cai et al 11 conducted a three‐dimension model to investigate the optimal shape and dimensionless length of blockages for a superior performance. Najmi et al 12 experimentally studied the positive characteristics of wavy flow fields. They pointed out that the optimized flow field had better performance with lower energy consumption, better humidity tolerance, and enhanced mass transportation.…”

Section: Introductionmentioning

confidence: 99%

Enhancement effects of the side blockage arrangement in the flow channel on the performance of a proton exchange membrane fuel cell

Shen

Yan

et al. 2022

Intl J of Energy Research

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Summary Flow field configuration critically affects the heat and mass transfer process in a proton exchange membrane fuel cell (PEMFC), which is a key factor to ensure efficient and stable operation of fuel cells. Side blockages arranged in the cathode flow channel is proposed for performance improving of PEMFC. Conventional straight, side blockage alternating with straight, side blockage flow channels are studied to analyze the effects of side blockages arrangement on the distribution of velocity, temperature, reactant concentration and water content and the performance of PEMFC. Results show that the O2 mole concentration in the flow field could be increased by the presence of side blockages, thus the convective mass transfer coefficient and performance are both improved. At current density of 2.0 A cm−2, the performance of PEMFC increases by 9.5%. In comparison to the straight flow channel, flow channels installing side blockage present about 1.5 K lower of the maximum temperature, more uniform temperature distribution and increased Nusselt number, indicating the enhancement of heat transfer. Based on field synergy theory, it’s found that the average angles describing the synergetic effect of heat transfer and mass transfer decrease with the installation of side blockages. This reveals the enhancement of the synergetic degree in heat and mass transfer processes under the turbulence of side blockages, which coincides with the improved performance of PEMFC.

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Experimental investigation and optimization of proton exchange membrane fuel cell using different flow fields

Cited by 45 publications

References 47 publications

Fuel Cell 3D Contour Simulation of Serpentine Flow Field Inside Cubic Channels

Fuel Cell 3D Contour Simulation of Serpentine Flow Field Inside Cubic Channels

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

Enhancement effects of the side blockage arrangement in the flow channel on the performance of a proton exchange membrane fuel cell

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