Simulation of a reversible SOFC with Aspen Plus

Hauck, Maximilian; Herrmann, Stephan; Spliethoff, Hartmut

doi:10.1016/j.ijhydene.2017.01.189

Cited by 88 publications

(49 citation statements)

References 22 publications

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“…These results indicate that the WGS reaction is the preferred pathway for CO/CO 2 consumption in co‐redox reactions in SOFCs and SOECs . Hauck et al compared simulation results with experimental data and concluded that the best fit is obtained when CO/CO 2 is only considered in the WGS reaction when syngas is provided to an rSOFC. Similar conclusions are cited in previous studies .…”

Section: Model Descriptionmentioning

confidence: 99%

“…38 Several CFD works involving multiphysics transport processes coupled with electrochemical reactions are presented to evaluate the working process, overpotential losses, and operating parameters in dual-mode. 31,32,[39][40][41][42][43][44] For instance, Su et al 45 developed a 2D axisymmetric model to investigate the effects of several variables on the performance of an rSOFC and concluded that the temperature and porosity of the electrode are beneficial to improve dual-mode operation. Garcia-Camprubi et al developed an electrochemical model of an SOFC/SOEC to fit the electrochemical parameters (eg, the charge transfer coefficients and the exchange current densities) in different cases.…”

Section: The Strategy Of Operation In Dual-modementioning

confidence: 99%

“…NASA developed a bielectrode‐supported rSOFC without a channel and interconnector, and thick Ni/Ag and LCC/LGC porous layers were applied to improve the reversible performance and decrease the weight and the high electrochemical voltage efficiencies . Similar studies were performed on other cell design schemes, including channel distribution and cell rib size; however, few studies considered reversible operation with syngas …”

Section: Introductionmentioning

confidence: 99%

“…Moreover, it is also possible to study and predict the governing parameters to optimize the design and operating conditions for rSOFCs . Several CFD works involving multiphysics transport processes coupled with electrochemical reactions are presented to evaluate the working process, overpotential losses, and operating parameters in dual‐mode . For instance, Su et al developed a 2D axisymmetric model to investigate the effects of several variables on the performance of an rSOFC and concluded that the temperature and porosity of the electrode are beneficial to improve dual‐mode operation.…”

Section: Introductionmentioning

confidence: 99%

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CFD modeling and performance comparison of solid oxide fuel cell and electrolysis cell fueled with syngas

et al. 2018

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Summary Reversible solid oxide fuel cells (rSOFCs) may be applied to store and generate electrical energy in a reversible mode. This technique is promising to balance the conflict between intermittent power supply and demand in a sustainable way. One of the limitations of the development of rSOFCs is the high cost of storage and usage of pure H2, which may be solved by employing syngas as the fuel. The performance of rSOFCs depends on the development of bifunctional materials, cell design, and operation optimization, which are often investigated and predicted by the cost‐effective approach of mathematical modeling. However, the modeling of dual‐mode rSOFCs involving co‐redox reactions with syngas is not well developed. In this study, a two‐dimensional (2D) single‐channel model of an rSOFC is developed. The novelty of this model is that the multiphysics transport processes are fully coupled and solved with the reversible water‐gas shift reaction with syngas and the electrochemical reactions. The effects of the operating conditions and design parameters (eg, electrode thickness) are considered, with the aim of providing guidelines to optimize the design and operation of reversible cells. It is concluded that the thickness of the electrode has a larger impact on the water‐gas shift reaction than on the electrochemical reaction in both the gas diffusion and reaction regions. The C/H element ratio of syngas has a negative correlation with power output, but the distributions of current and gas species may be improved in both modes. A higher operating temperature improves the performance in both modes but has a more substantial effect in the electrolysis mode. The specific design and operating schemes favored in different modes should be balanced in the reversible mode.

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Section: Model Descriptionmentioning

confidence: 99%

Section: The Strategy Of Operation In Dual-modementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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CFD modeling and performance comparison of solid oxide fuel cell and electrolysis cell fueled with syngas

et al. 2018

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“…Então, para a realização de uma modelagem é necessário que suas equações e software utilizados respeitem as leis termodinâmicas de funcionamento [6].…”

Section: Introductionunclassified

Modelagem de uma célula a combustível a óxido sólido no software Aspen Plus®

Guaitolini¹,

Fardin²,

Encarnação³

2017

Blucher Physics Proceedings

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High Temperature Co‐Electrolysis as a Key Technology for CO₂ Emission Mitigation – A Model‐Based Assessment of CDA and CCU

Herz

Müller

Adam

et al. 2020

Chemie Ingenieur Technik

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The mitigation of CO2 emissions is a major challenge for modern society. While the mitigation of energy‐related emissions can be achieved comparatively easy by switching to renewable energy sources, reduction of process‐related industrial emissions is considerably more challenging. To reduce industrial CO2 emissions, two basic routes are available: carbon direct avoidance (CDA) and carbon capture and utilization (CCU). It is shown that in terms of efficiency, CDA is to be favored when applicable. However, for applications where emissions cannot be avoided, CCU can be a viable approach allowing for emission mitigation.

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Simulation of a reversible SOFC with Aspen Plus

Cited by 88 publications

References 22 publications

CFD modeling and performance comparison of solid oxide fuel cell and electrolysis cell fueled with syngas

CFD modeling and performance comparison of solid oxide fuel cell and electrolysis cell fueled with syngas

Modelagem de uma célula a combustível a óxido sólido no software Aspen Plus®

High Temperature Co‐Electrolysis as a Key Technology for CO₂ Emission Mitigation – A Model‐Based Assessment of CDA and CCU

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Simulation of a reversible SOFC with Aspen Plus

Cited by 88 publications

References 22 publications

CFD modeling and performance comparison of solid oxide fuel cell and electrolysis cell fueled with syngas

CFD modeling and performance comparison of solid oxide fuel cell and electrolysis cell fueled with syngas

Modelagem de uma célula a combustível a óxido sólido no software Aspen Plus®

High Temperature Co‐Electrolysis as a Key Technology for CO2 Emission Mitigation – A Model‐Based Assessment of CDA and CCU

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High Temperature Co‐Electrolysis as a Key Technology for CO₂ Emission Mitigation – A Model‐Based Assessment of CDA and CCU