A modified serpentine flow slab for in Proton Exchange Membrane Fuel Cells (PEMFCs)

Wang, Chin‐Tsan; Ou, Yun-Ting; Wu, Bing-Xue; Sangeetha, T.; Hong, Shu-Wen; Chung, Wen-Tong; Yan, Wei‐Mon

doi:10.1016/j.egypro.2017.12.110

Cited by 17 publications

(5 citation statements)

References 15 publications

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“…With the length reduction ratio of 0.3 and height reduction ratio of 0.4, the gas velocities, water removal and cell performance were increased. The effect of varying the channel width was analysed by designing four convergent serpentine flow slabs (TS28, TS36, TS44, TS52) and compared with One common‐type (OS) design (Figure 14b) [86] . Because of the proper mixing of fuels, the TS36 gave 1.35 times higher current density than OS.…”

Section: Effects Of Different Flow Field Designsmentioning

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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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: 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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show abstract

“…However, some experimental and computational works indicate that serpentine fields outperform the other related designs. 99,100,101 An alternative flow field design often employed for 3D porous electrodes is the interdigitated flow field (IFF), which has a series of parallel channels where each channel is blocked at alternate ends. In order to continue the flow, liquid must move through the 3D electrode structure itself.…”

Section: Examples Of Reactor Designs and Their Performancementioning

confidence: 99%

Review—The Design, Performance and Continuing Development of Electrochemical Reactors for Clean Electrosynthesis

Perry

León

Walsh

2020

J. Electrochem. Soc.

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A critical review of classical and improved electrodes, electrocatalysts and reactors is provided. The principles governing the selection of electrochemical flow reactor or progression of a particular design for laboratory or pilot scale are reviewed integrating the principles of electrochemistry and electrochemical engineering with practical aspects. The required performance, ease of assembly, maintenance schedule and scale-up plans must be incorporated. Reactor designs can be enhanced by decorating their surfaces with nanostructured electrocatalysts. The simple parallel plate geometry design, often in modular, filter-press format, occupies a prominent position, both in the laboratory and in industry and may incorporates porous, 3D or structured electrode surfaces and bipolar electrical connections considering the reaction environment, especially potential- and current-distributions, uniformity of flow, mass transport rates, electrode activity, side reactions and current leakage. Specialised electrode geometries include capillary gap and thin film cells, rotating cylinder electrodes, 3-D porous electrodes, fluidised bed electrodes and bipolar trickle tower reactors. Applications span inorganic, organic electrosynthesis and environmental remediation. Recent developments in cell design: 3D printing, nanostructured, templating 3D porous electrodes, microchannel flow, combinatorial electrocatalyst studies, bioelectrodes and computational modelling. Figures of merit describing electrochemical reactor performance and their use are illustrated. Future research and development needs are suggested.

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“…Several studies have been conducted on serpentine gas channels. [18][19][20] Jabbary et al 21 explored the performance of a PEM fuel cell with a rhombic design. Min et al 22 and Jun et al 23 evaluated the effects of serpentine channels on the performance of PEM fuel cells.…”

Section: Introductionmentioning

confidence: 99%

“…Ozdemir et al 2 investigated U‐shaped, Z‐shaped, and serpentine gas flow channels. Several studies have been conducted on serpentine gas channels 18‐20 . Jabbary et al 21 explored the performance of a PEM fuel cell with a rhombic design.…”

Section: Introductionmentioning

confidence: 99%

Performance improvement ofproton‐exchangemembrane fuel cells through different gas injection channel geometries

Ashrafi

Pourmahmoud

Mirzaee

et al. 2022

Intl J of Energy Research

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The performance of proton-exchange membrane (PEM) fuel cells is strongly dependent on the geometry, flow channel configuration, and size. The present work numerically studies the performance of PEM fuel cells through the design of gas injection channels of different geometries. Computational fluid dynamics was adopted to solve the governing equations. The finite volume method was used to discretize and solve the equations. The channel geometries included spiral quasi (Model A), parallel (Model B), and pin (Model C), which have the same dimensions as the base serpentine model. The performance of the system was validated using the base model, and the simulation was carried out at a voltage of 0.6 V. The present study primarily aimed to utilize novel PEM fuel cell designs and improve their performance. The highest current density and output power were found to occur in Model C, whereas Model B had the lowest current density and output power. The temperature distribution was uniform in Model C and the base model. Moreover, Model C had the lowest water production; therefore, water immersion would not interrupt the fuel cell. On the other hand, Model B was observed to experience the largest liquid water generation, leading to an interrupted fuel cell. Model C had the lowest pressure loss and, therefore, lower power was required to pump gasses through the channel. It was found that Models C and B had the highest and lowest performances, respectively.

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A modified serpentine flow slab for in Proton Exchange Membrane Fuel Cells (PEMFCs)

Cited by 17 publications

References 15 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

Review—The Design, Performance and Continuing Development of Electrochemical Reactors for Clean Electrosynthesis

Performance improvement ofproton‐exchangemembrane fuel cells through different gas injection channel geometries

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