Numerical investigation of baffle shape effects on performance and mass transfer of proton exchange membrane fuel cell

Huang, Ying; Song, Jiangnan; Deng, Xinyue; Chen, Su; Zhang, Xiang; Ma, Zongpeng; Chen, Lunjun; Wu, Yanli

doi:10.1016/j.energy.2022.126448

Cited by 32 publications

(4 citation statements)

References 41 publications

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“…The redesign of the baffle structure is also a key focus of this research. Huang et al [16] proposed five different baffle flow channel structures, and the findings demonstrated that the PEMFC equipped with a cutting cylindrical baffle exhibited superior performance, achieving an output current density of 1.82 A/m 2 at a voltage of 0.4 V. Liu et al [17] proposed a spiral baffle and investigated the impact of baffle structure on the heat and mass transfer processes. Shang et al [18] conducted a comparative analysis of the impact of baffles with rectangular, triangular, and semi-elliptical sections on battery performance.…”

Section: Introductionmentioning

confidence: 99%

“…Huang et al. [16] proposed five different baffle flow channel structures, and the findings demonstrated that the PEMFC equipped with a cutting cylindrical baffle exhibited superior performance, achieving an output current density of 1.82 A/m 2 at a voltage of 0.4 V. Liu et al. [17] proposed a spiral baffle and investigated the impact of baffle structure on the heat and mass transfer processes.…”

Section: Introductionmentioning

confidence: 99%

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The impact of baffle and taper channel tilt angle on the output performance of proton‐exchange membrane fuel cells

Cheng,

Liu,

Jiang

et al. 2024

Fuel Cells

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The performance and durability of proton‐exchange membrane fuel cells (PEMFCs) are constrained by fuel delivery and water management. Based on parallel and serpentine flow fields, the effects of triangular baffles (30°, 45°, and 60°) and conical runners (1°, 2°, and 3°) on the performance output of PEMFC at different angles are studied. The three‐dimensional and multi‐phase models are established by using the simulation software package (ANSYS FLUENT). The findings demonstrate that the battery's output performance reaches its peak when the baffle angle is set at 45°. When the output current density is 0.7 A/cm2, the power density of the 45° baffle increases by 18.87%. The pressure loss is not only lower than that of the 60° baffle but also exhibits no significant difference when compared to the 30° baffle. In addition, the introduction of conical channels has enhanced the output performance of PEMFCs in comparison to the traditional serpentine flow field. The power density of the 2°tapered channel exhibits a 12.65% increase when the output current density reaches 0.8 A/cm2. However, the performance output of the 3°tapered channel is inferior to that of the conventional serpentine flow field.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The impact of baffle and taper channel tilt angle on the output performance of proton‐exchange membrane fuel cells

Cheng,

Liu,

Jiang

et al. 2024

Fuel Cells

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show abstract

“…With the sharp rise in energy demand, a series of environmental and energy security problems caused by the use of a large number of fossil fuels have become more and more serious [1,2]. Proton exchange membrane fuel cell (PEMFC), as a new form of hydrogen energy utilization, has the advantages of theoretical zero emission, high power density and efficiency, relatively low operating temperature and fast start-up ability, and is considered to have the potential to replace internal combustion engine [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Parametric Analysis on Formability of SS304 Metal Bipolar Plate with Wave Flow Field Structure

Jiahao,

Pengyan,

Cunwu

et al. 2024

JERR

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The main production method of metal bipolar plate is stamping, and the size parameters of the flow field structure can not only change the performance of the fuel cell, but also affect the stamping quality of the metal bipolar plate. In the case of ensuring the performance of the fuel cell, it is necessary to study the stamping of the metal bipolar plate with different flow field structures. In the past, there were few studies on the wave flow field stamping forming. This paper analyzed the wave flow field, formulated several sets of bipolar plate structural dimension parameters, and evaluated the stamping forming quality of the reaction zone of SS304 metal bipolar plate through finite element simulation. By reducing the rib height ΔH=0.075mm in the corner part, the maximum thinning rate can be reduced from 34.833% to 24.689% and the thickness can reach 0.0753mm when the flow channel width S=1.0mm, the rib width W=1.5mm and the forming depth H=0.5mm. It provides some guidance for optimizing the structural dimension parameters of metal bipolar plates.

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“…emission, and rapid response, make it a promising power source for the automotive industry in the future [1][2]. In practice, vehicles that use PEMFCs must maintain a stable state of charge of their power batteries in order to minimize battery damage [3][4].…”

mentioning

confidence: 99%

An innovative 3D wave channel design for boosting the dynamic response of proton exchange membrane fuel cell stack

Fan

Xie²

2023

Preprint

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The dynamic response of proton exchange membrane fuel cell (PEMFC) is an appropriate metric for evaluating the vehicle’s PEMFC system. In this study, we compare the experimental results of two stacks, each with an effective area of 102.66 cm2 (14.5cm×7.08cm), and bipolar plates featuring parallel two-dimensional straight channel (2D) and three-dimensional wave channel (3D). We specifically investigate the effects of load mode, load change, stoichiometric ratio, temperature, back pressure, and humidity on the output performance of both stacks, using polarization curve and electrochemical impedance spectroscopy (EIS). The 3D wave channel outperforms the 2D straight channel in terms of reaction gas dispersion, enhancement of diffusion and mass transfer to the diffusion layer, reduction of concentration polarization in the PEMFC, and improved self-humidification under low humidity conditions. More importantly, our results show that the implementation of a 3D wave channel results in both an enhanced steady-state performance and improved dynamic response for the PEMFC.

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Numerical investigation of baffle shape effects on performance and mass transfer of proton exchange membrane fuel cell

Cited by 32 publications

References 41 publications

The impact of baffle and taper channel tilt angle on the output performance of proton‐exchange membrane fuel cells

The impact of baffle and taper channel tilt angle on the output performance of proton‐exchange membrane fuel cells

Parametric Analysis on Formability of SS304 Metal Bipolar Plate with Wave Flow Field Structure

An innovative 3D wave channel design for boosting the dynamic response of proton exchange membrane fuel cell stack

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