Constructal flow distributor as a bipolar plate for proton exchange membrane fuel cells

Ramos–Alvarado, Bladimir; Hernández-Guerrero, Abel; Elizalde‐Blancas, Francisco; Ellis, Michael W.

doi:10.1016/j.ijhydene.2011.07.017

Cited by 51 publications

(28 citation statements)

References 24 publications

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“…where Q j are flow rates in the n=1,...,N outlets, Q max , Q min , Q avr are the maximum, minimum and average values of the flow rate. In the model with N = 16 outlets, presented in Figure 8C, q increased from 0.001 to 0.055 and θ increased from 1.003 to 1.014 when the Reynolds (Re) number increased from Re = 150 to 650 (Ramos-Alvarado et al, 2011). In the model with N = 64 outlets, q increased from 0.0002 to 0.0013 and θ increased from 1.002 to 1.007.…”

Section: Fractal Type Designmentioning

confidence: 92%

“…Rectangle channels in such designs can easily be engraved in a graphite plate. Designs with different number of generations with N = 16-64 outlets, have been studied theoretically and experimentally (Damian-Ascencio et al, 2007;Fan et al, 2008;Ramos-Alvarado et al, 2011).…”

Section: Fractal Type Designmentioning

confidence: 99%

“…During the last decade, novel types of FFP designs, inspired by nature and mimicking the structure of biological transport networks, have been elaborated (Tüber et al, 2004;Kloess et al, 2009;Ramos-Alvarado et al, 2011;Roshandel et al, 2012;Arvay et al, 2013;Guo et al, 2013Guo et al, , 2014. The idea has been that the FFP in PEMFC should mimic the transport function that can be seen in blood vessels, bronchial airways, and fluid conducting vessels in plants.…”

Section: Bio-mimetic Designs For Ffpmentioning

confidence: 99%

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Flow Field Patterns for Proton Exchange Membrane Fuel Cells

et al. 2020

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Flow field designs for the bipolar plates of the proton exchange membrane fuel cell are reviewed; including the serpentine, parallel, interdigitated, mesh type or their mixtures, furthermore 2D circular and 3D tubular geometries, porous, fractal, and biomimetic flow fields. The advantages/disadvantages and tendencies from field optimizations are discussed. The performance of each flow field design is compared to the conventional serpentine flow field. Good flow field plates give uniform gas distributions, low pressure drop for transport, and sufficient rib area to provide high electronic conductivity. A good field should also prevent water condensation, remove water efficiently, and provide sufficiently high moisture content in the membrane. The demands on design are sometimes contradictory. Future work should aim for a flow field geometry and topology that produces uniform gas delivery at a low pressure-drop, and at the same time has an optimal channel shape for better water removal. It is concluded that for an area-filling gas distributor, the developments should aim to find a flow field in accordance with minimum entropy production, making an emphasis on multi-criteria optimization methods.

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Section: Fractal Type Designmentioning

confidence: 92%

Section: Fractal Type Designmentioning

confidence: 99%

Section: Bio-mimetic Designs For Ffpmentioning

confidence: 99%

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Flow Field Patterns for Proton Exchange Membrane Fuel Cells

et al. 2020

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“…The cell polarization describes the voltage change when the static state of PEMFC changes to work state. Polarization curve has been widely applied to estimate the performance of PEMFC . It describes the relationship between the operating voltage, the current density, and the power density.…”

Section: Computational Fluid Dynamics Numerical Simulationsmentioning

confidence: 99%

A novel intersectant flow field of metal bipolar plate for proton exchange membrane fuel cell

et al. 2017

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Summary A novel intersectant flow field of metal bipolar plate for proton exchange membrane fuel cell (PEMFC) was proposed. The bionics, fractal theory, and Murray's law were employed to design the novel flow field to decrease the drag force for the reaction medium and product. Computational fluid dynamics method was employed to investigate the performance of the novel flow field. The performance of traditional serpentine flow field was compared with the said one to calibrate the efficiency of the novel design of flow field. A test system of PEMFC was assembled to validate the reliability of the numerical simulation. The metal bipolar plates with the intersectant flow field were fabricated by electro discharge machining for the test. The surface treatment of the bipolar plate was conducted. Results showed that the novel flow field exhibited some advantages than the serpentine flow field in terms of the uniform distribution of reaction medium and exhausting of reaction product. The polarization curve also released that the novel flow field owned the higher power and current density. The experimental results certified the accuracy of numerical simulation and validated the advantage of the novel flow field in promoting the efficiency of PEMFC. Copyright © 2017 John Wiley & Sons, Ltd.

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“…47 Initial modeling studies on the effect of the fractal distributor on the fuel cell performance and gas distribution have been carried out. 98 Fractal distributors with 16, 64 and 256 outlets have been reported in the literature (Fig. 8).…”

Section: View Article Onlinementioning

confidence: 99%