Comparative study of conventional and unconventional designs of cathode flow fields in PEM fuel cell

Azarafza, Abouzar; Ismail, M.S.; Rezakazemi, Mashallah; Pourkashanian, Mohamed

doi:10.1016/j.rser.2019.109420

Cited by 72 publications

(17 citation statements)

References 51 publications

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“…Further, the current density was increased by decreasing the flow channel depth. The power density of porous Nickel foam (90 % porosity and 10 −8 m 2 permeability) as flow field was higher upto 50 % than PFF and 10 % than SFF and Interdigitated Flow Field (IFF) at medium and higher humidity values [36] …”

Section: Effects Of Different Flow Field Designsmentioning

confidence: 98%

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Performance Studies of Proton Exchange Membrane Fuel Cells with Different Flow Field Designs – Review

Marappan¹,

Palaniswamy

Velumani

et al. 2021

The Chemical Record

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Proton Exchange Membrane Fuel Cell (PEMFC) is majorly used for power generation without producing any emission. In PEMFC, the water generated in the cathode heavily affects the performance of fuel cell which needs better water management. The flow channel designs, dimensions, shape and size of the rib/channel, effective area of the flow channel and material properties are considered for better water management and performance enhancement of the PEMFC in addition to the inlet reactant's mass flow rate, flow directions, relative humidity, pressure and temperature. With the purpose of increasing the output energy of the fuel cell, many flow field designs are being developed continuously. In this paper, the performance of various conventional, modified, hybrid and new flow field designs of the PEMFC is studied in detail. Further the effects of channel tapering, channel bending, landing to channels width ratios, channel cross‐sections and insertion of baffles/blockages/pin‐fins/inserts are reviewed. The power density of the flow field designs, the physical parameters like active area, dimensions of channel/rib, number of channels; and the operating parameters like temperature and pressure are also tabulated.

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Section: Effects Of Different Flow Field Designsmentioning

confidence: 98%

“… Power density curves of (a) Metal foam and PFF, [36] (b) STBPFF and PTBPFF, [37] (c) PFF with and without blockages, [39] (d) PFF with 2 blockages and without blockages [40] …”

Section: Performance Comparison Of Various Flow Fields By Using Numermentioning

confidence: 99%

Performance Studies of Proton Exchange Membrane Fuel Cells with Different Flow Field Designs – Review

Marappan¹,

Palaniswamy

Velumani

et al. 2021

The Chemical Record

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“…[6] Furthermore, cathode flow field optimization is critical due to the significance of sufficient oxygen supply of the cathode. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] Trogadas et al [7] designed a lung-inspired flow field for the cathode, namely a fractal flow field with multi-level gas distribution, to achieve uniform reactant distribution in the activation plane and minimize the entropy production. The proposed flow field plate was processed by additive manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of a Novel Cathode Matrix Flow Field in Proton Exchange Membrane Fuel Cell

Wang¹,

Sun²,

Xie³

et al. 2021

ES Energy Environ.

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Scaling relationsThe flow field design is critical for the proton exchange membrane fuel cell optimization, and a novel cathode matrix flow field is experimentally investigated in this work. The results show that the cell with the matrix flow field has better performance than that with the conventional parallel and serpentine flow fields, especially at high relative humidity (75% higher current density at 0.6 V and 100% relative humidity). Furthermore, the pressure drop of the matrix flow field is much less than that of the serpentine flow field. But the matrix flow field shows worse liquid discharge capacity than the serpentine flow field. Decreasing the single block area in the investigated range will increase the ohmic loss but greatly decrease the activation loss that highlights the advantages of the matrix flow field. For visualization of water discharge, the smaller single block leads to more water accumulation at the corners of the flow field. Therefore, sub-regions and compulsive gas distribution should be considered if the matrix flow field is applied in large-scale fuel cells. The matrix flow field with the compact block arrangement shows reduced ohmic and activation losses by the large conductive area and enhanced air guidance effect in the investigated range.

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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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Comparative study of conventional and unconventional designs of cathode flow fields in PEM fuel cell

Cited by 72 publications

References 51 publications

Performance Studies of Proton Exchange Membrane Fuel Cells with Different Flow Field Designs – Review

Performance Studies of Proton Exchange Membrane Fuel Cells with Different Flow Field Designs – Review

Experimental Investigation of a Novel Cathode Matrix Flow Field in Proton Exchange Membrane Fuel Cell

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

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