Numerical analysis of the effect of different gas feeding modes in a proton exchange membrane fuel cell with serpentine flow-field

Sierra, J.M.; Moreira, J. Agostinho; Sebastian, P.J.

doi:10.1016/j.jpowsour.2011.01.079

Cited by 23 publications

(7 citation statements)

References 14 publications

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“…Furthermore, the distribution on the anode side in which the water was found to accumulate at the inlet occurred since the fed water was mostly absorbed into the CL at that area. Although the counter-flow configuration provided the highest cell performance, the non-uniform distributions are the major drawback of this type of flow configuration which is in concurrence with the numerical result of Sierra et al [11]. To achieve a more even distribution, the co-flow configuration should be used instead.…”

Section: Resultssupporting

confidence: 61%

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Effect of different flow field designs and number of channels on performance of a small PEFC

Limjeerajarus

Charoen-amornkitt

2015

International Journal of Hydrogen Energy

121

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Section: Resultssupporting

confidence: 61%

“…Sierra et al [11] performed a numerical study of the effects of the gas feeding direction on 5 cm 2 PEFC with three channel parallel in series (3PIS) flow field. The results revealed that the co-flow (similar flow) gave the best uniformity in the volumetric transfer current while the counter-flow gave the highest cell performance.…”

Section: Introductionmentioning

confidence: 99%

Effect of different flow field designs and number of channels on performance of a small PEFC

Limjeerajarus

Charoen-amornkitt

2015

International Journal of Hydrogen Energy

121

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“…One of the most significant procedures that occur inside the fuel cell is mass transport which is proportional to the electrochemical reactions affecting fuel cell performance. Mass transport depends on channel design and the distribution of the gas flow on the layers of catalyst 4 . Therefore, a proper design of the flow field has a vital impact on the integrated performance of a fuel cell.…”

Section: Introductionmentioning

confidence: 99%

An innovative application of multiple impinging jet flow field in fuel cells

Khademi

Bazargan

2022

Heat Trans

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The flow field in a fuel cell is expected to distribute the reactants as uniformly as possible over the active plate, support the reasonable pressure drop across the channel and maximize the mass transfer through the catalyst layers. To simultaneously accomplish these requirements, an innovative multiple impingement jet flow field (MIJFF) is proposed in this study. A threedimensional thermo-fluid simulation is used to evaluate the proposed idea and compare its performance against the commonly used parallel field flow (PFF).The domain of calculations includes a channel with multiple impingement jets linked to a porous gas diffusion layer under low Reynolds flow conditions. The results reveal that the suggested MIJFF design significantly increases the transport of the reactant gases through the catalyst layer. The penetration depth into the catalyst layer in the MIJFF arrangement is higher than that of the PFF setup and the use of the catalyst layer is optimized, which in turn can lead to a reduction of the activation drop. Compared to a PFF design under similar operating conditions, the mean Nusselt number is shown to increase by a factor of about 3.5 in the MIJFF setup. Furthermore, the temperature is more uniformly distributed in the MIJFF pattern which results in more effective distribution of the reactant gases over the active surface. The current study shows that under equal pressure drop

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“…The full flow field PEMFC used and analyzed in this study has a serpentine flow field structure. The serpentine flow field is a commonly used flow field structure, and its structure allows the reactants inside the PEMFC to have a good distribution uniformity 28‐30 . Analyzing the influence of its structure on the distribution of internal reactants has certain guiding significance for the subsequent design of the serpentine flow field.…”

Section: Introductionmentioning

confidence: 99%

Dynamic analysis of internal reactants and water content distribution during anode purge in a proton‐exchange membrane fuel cell

et al. 2021

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Summary For proton‐exchange membrane fuel cell, anode purge is a commonly used method to increase utilization rate of hydrogen and proton‐exchange membrane fuel cell durability. Limited by experiment condition, it is hard to analyze reactants and water content distribution in fuel cell during purge. This article uses transient simulation to dynamic analyze distribution of reactants and water content in a full flow field fuel cell (active area 82.14 cm2) with serpentine flow field during purge. From simulation result, it is found that corresponding structures relationship of anode and cathode flow channel causes reactants fluctuating greatly. The direction of water transport across membrane is not fixed. The transmission direction is also affected by local water content of anode and cathode. Dynamic analysis of purge is divided into three stages: purge interval, purging and after purge. During purge interval, water content increases with time. During purging, water content decreases with time in inlet and outlet sections, but in serpentine section water content still increases with time. During after purge, water content increases with time, except inlet section. After multiple purge, purge has little influence on hydrogen distribution in anode flow channel, but value of hydrogen mass fraction increases and increase magnitude gradually decreases, finally reach dynamic equilibrium.

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Numerical analysis of the effect of different gas feeding modes in a proton exchange membrane fuel cell with serpentine flow-field

Cited by 23 publications

References 14 publications

Effect of different flow field designs and number of channels on performance of a small PEFC

Effect of different flow field designs and number of channels on performance of a small PEFC

An innovative application of multiple impinging jet flow field in fuel cells

Dynamic analysis of internal reactants and water content distribution during anode purge in a proton‐exchange membrane fuel cell

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