A parametric study of the heat and mass diffusion dimensionless parameter in SOFC with DIR by lattice Boltzmann method

Takami, M. Rahimi; Ganji, D.D.; Delavar, Mojtaba Aghajani; Bozorgmehri, Shahriar

doi:10.1007/s10973-020-10217-9

Cited by 5 publications

(1 citation statement)

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“…[ 36 ] This numerical tool has become versatile and inexpensive to efficiently study and predict the performance of SOFCs based on their microstructure and composition. [ 37 ] In other words, its algorithm is both simple, explicit, and practical to deal with boundary conditions of even complex geometry. [ 38 ] After having solved the governing equations model considered, a validation step is obviously inevitable to ensure good confidence in the results obtained.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Impact of the Partial Anode Channel Blockage on the Enhanced Mass Transfer and Performance of a Solid Oxide Fuel Cell

Yahya,

Naji,

Dhahri

2023

Energy Tech

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This study aims to numerically reveal and assess the influence of inserts of different shapes partially obstructing the anode flow channel on flow characteristics, heat and mass transfer, and planar solid oxide fuel cell (SOFC) performance. To this end, a lattice‐based Boltzmann method is taken. Within this setting, trapezoidal, circular, and triangular shapes and inserts’ heights have been deemed. It turns out that trapezoidal and circular obstacles increase the fuel mass transport to the anode/electrolyte interface and effectively improve the SOFC's power density. As for triangular obstacles, their impact is negligible in terms of performance. Through the findings, it can be stated that it is the trapezoidal design that is better than the other designs. Further, the effect of the inserts’ height has also been assessed to set the optimal performance. It is found that the SOFC performance increases by 4% when using five trapezoidal obstacles with a 90% blocking rate compared to the unobstructed channel. However, in the case of the circular design with five blocks and a 90% blocking rate, the power density improves only about 2.3%. To sum up, improving SOFCs’ power density by designing the anode channel can be adopted to achieve optimal operations.

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Section: Introductionmentioning

confidence: 99%