Benchmarking solid oxide electrolysis cell-stacks for industrial Power-to-Methane systems via hierarchical multi-scale modelling

Wehrle, Lukas; Schmider, Daniel; Dailly, Julian; Banerjee, Aayan; Deutschmann, Olaf

doi:10.1016/j.apenergy.2022.119143

Cited by 32 publications

(19 citation statements)

References 99 publications

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“…These high operating temperatures require good thermal insulation and expensive thermostable materials. 47,53,56…”

Section: Solid Oxide Electrolysis Cell Configurations and Designsmentioning

confidence: 99%

“…45,47,50 Nevertheless, electrode-supported SOCs exhibit higher electronic resistance and low redox stability, resulting in higher sensitivity for damage caused by redox cycling. 53,54,56 At present, fuel electrode-supported cells are key components in Elcogen SOEC stacks as well as in SolydEra solid oxide electrolysis (SOE) systems. 57…”

Section: Electrode-supported Cellmentioning

confidence: 99%

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Solid oxide electrolysis cells – current material development and industrial application

Wolf,

Winterhalder,

Vibhu

et al. 2023

J. Mater. Chem. A

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“…These high operating temperatures require good thermal insulation and expensive thermostable materials. 47,53,56…”

Section: Solid Oxide Electrolysis Cell Configurations and Designsmentioning

confidence: 99%

Section: Electrode-supported Cellmentioning

confidence: 99%

Solid oxide electrolysis cells – current material development and industrial application

Wolf,

Winterhalder,

Vibhu

et al. 2023

J. Mater. Chem. A

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“…This can be motivated by the comparatively small height and width of the channels. Based on this assumption gas flow in the channels is reduced to a 1D problem [39,85,87,89,[133][134][135].…”

Section: Mass Transportmentioning

confidence: 99%

“…A different approach to limit computational effort needed for stack computation is applied by [135]. An agglomeration algorithm is used, which groups several RPUs into clusters according to the local stack temperature field.…”

Section: Hierarchical Modelsmentioning

confidence: 99%

High Temperature Solid Oxide Electrolysis – Technology and Modeling

Mueller,

Klinsmann,

Sauter

et al. 2023

Chemie Ingenieur Technik

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In the global quest to renounce from fossil fuels, a large demand for the renewable production of hydrogen via water electrolysis exists. In this context, the solid oxide electrolyzer (SOE) is an interesting technology due to its high efficiency resulting from elevated operating temperatures of up to 900 °C. Physical modeling plays a vital role in the development of SOEs, as it lowers experimental costs and provides insight where measurements reach limits. A main challenge for modeling SOEs is the multitude of physical effects, occurring and interacting on various spatial and temporal scales. This requires assumptions and simplifications, particularly when increasing scope and dimensions of a model. In this review, we discuss the different approaches currently available in literature.

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“…Although there was a number of scientific findings due to simulation in the past decade [1][2][3][4][5][6][7][8], simulations are usually steady-state simulations, making it impossible to trace the degradation over time. Besides, it can be seen that many numerical investigations of SOCs were carried out with commercial software, for example, DETCHEM, ANSYS Fluent, COMSOL, etc.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modelling and Simulation of the Solid Oxide Cell Stacks and Metal Interconnect Oxidation With OpenFOAM

Yu¹,

Zhang²,

Schäfer³

et al. 2023

Preprint

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Solid oxide cells are capable of efficiently converting various chemical energy carriers to electricity and vice versa. The urgent challenge nowadays is the faster degradation rate compared with other fuel cell/electrolyzer technologies. To understand the degradation mechanisms, simulation of a solid oxide cell is helpful. Since most previous research developed models using commercial software, such as COMSOL and ANSYS Fluent, a gap for knowledge transfer is being gradually formed between academia and industry due to licensing issues. This paper introduces a multiphysics model, developed by a computational code, openFuelCell2. The code is implemented with an open-source library, OpenFOAM. It accounts for momentum transfer, mass transfer, electrochemical reactions and metal interconnect oxidation. The model can precisely predict I-V curves under different temperatures, fuel humidity and operation modes. Comparison between OpenFOAM and COMSOL simulations shows good agreement. The metal interconnect oxidation is modelled, which can predict the thickness of the oxide scale under different protective coatings. Simulations are conducted by assuming an ultra-thin film resistance on the rib surface. It is revealed that coatings fabricated by atmospheric plasma spraying can efficiently prevent metal interconnect oxidation, with a contribution of only 0.53 \% to the total degradation rate.

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Benchmarking solid oxide electrolysis cell-stacks for industrial Power-to-Methane systems via hierarchical multi-scale modelling

Cited by 32 publications

References 99 publications

Solid oxide electrolysis cells – current material development and industrial application

Solid oxide electrolysis cells – current material development and industrial application

High Temperature Solid Oxide Electrolysis – Technology and Modeling

Numerical Modelling and Simulation of the Solid Oxide Cell Stacks and Metal Interconnect Oxidation With OpenFOAM

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