Model validation and performance analysis of regenerative solid oxide cells: Electrolytic operation

Kazempoor, Pejman; Braun, Robert J.

doi:10.1016/j.ijhydene.2013.12.010

Cited by 76 publications

(50 citation statements)

References 30 publications

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“…As shown in our previous model validation effort [6], the introduction of even small amounts of water vapor in the feedstock fuel stream promotes CO 2 consumption through RWGS reaction. In this condition, the electrochemical reaction of CO 2 can be neglected as implemented here [8,9].…”

Section: Theory Of Operationmentioning

confidence: 79%

“…An SOEC is very similar to a solid oxide fuel cell (SOFC) operated in reverse with similar material sets and geometric configurations [6]. The reverse operation not only changes the reaction directions but also affects the cell electrochemical and thermal behavior, which is relatively far from that observed in SOFCs.…”

Section: Introductionmentioning

confidence: 99%

“…As shown in the next sections, SOECs have the potential to generate various outlet syngas compositions with various H 2 /CO ratios. While currently the SOEC price is not competitive with other technologies [10], significant research activities and industrial efforts may help to reduce the price in the near future [2,4,6,8].…”

Section: Introductionmentioning

confidence: 99%

“…Along with the above research activities, this paper presents a brief description of an intermediate-fidelity model that has been previously developed and validated for technical evaluation of SOECs [6]. As a further step, the model is employed here to identify favorable electrochemical and thermal performance characteristics of an SOEC due to change of various input parameters, such as the inlet fuel temperature, gas compositions, and flow rate.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hydrogen and synthetic fuel production using high temperature solid oxide electrolysis cells (SOECs)

Kazempoor

Braun

2015

International Journal of Hydrogen Energy

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Section: Theory Of Operationmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrogen and synthetic fuel production using high temperature solid oxide electrolysis cells (SOECs)

Kazempoor

Braun

2015

International Journal of Hydrogen Energy

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“…The concept of the reversible PEMFC was put forward for the first time in the early 1960s, and in 1972 PEM-URFC technology was successfully tested by General Electric Co., leading to the development of a prototype for a space satellite [106]. However, the real breakthrough was achieved by Livermore National Laboratory [107,108] [113][114][115]. For this reason they have become the subject of increasing interest to the research and development community.…”

Section: Unitized Regenerative Fuel Cellsmentioning

confidence: 99%

Membrane electrolysis—History, current status and perspective

Paidar

Фатеев

Bouzek

2016

Electrochimica Acta

280

137

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Please cite this article as: M.Paidar, V.Fateev, K.Bouzek, Membrane electrolysis − history, current status and perspective, Electrochimica Acta http://dx. AbstractThis review is devoted to membrane electrolysis, in particular utilizing ion-selective membranes, as an important part of both existing and emerging industrial electrochemical processes. It aims to provide fundamental information on the history and development, current status and future perspectives of membrane electrolysis. It aims to provide fundamental information on the history and development, current status and future perspectives of membrane electrolysis. An overview of the history of electromembrane processes is given with the focus on brine electrolysis since it is the predominant electrochemical industrial technology utilizing ion-selective membranes. This is followed by a summary of the wide range of hydrogen-based energy conversion processes with different degrees of maturity, i.e. water electrolysis and fuel cells, which promise to become the next generation of major electromembrane processes. The overview of the state-of-the-art is rounded off by a number of smaller-scale processes utilizing ionically conducting solid electrolytes and ion-selective membranes that are already commercially available. The article concludes by considering potential future developments in this exciting field of electrochemistry.

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Statistical method‐based calibration and validation of a solid oxide fuel cell model

2018

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Summary A 2‐stage model validation strategy for the previously developed solid oxide fuel cell model using the data from custom‐designed experiments is presented. The strategy is based on the identification of model structural and parametric errors. In the preliminary validation, the causes that can result in the voltage error during changing temperature and fuel flow rate conditions are analysed. It is identified that the convection heat transfer process contributes significantly towards the cell performance in a temperature controlled test environment. Rectification of this error results in the reduction of the maximum voltage error from 14% to 0.5%. Graphical methods for data visualisation are utilised to examine goodness of fit of the model. Input sensitivity analysis reveals that the air flow rate has negligible influence on the output quantities of current density, fuel utilisation, and cell temperature owing to temperature‐controlled conditions of the test. Parameter sensitivity analysis through the elementary effects method reveals that most of the electrochemical parameters in general and the activation energies in particular have dominant effects on the considered system outputs. Model validation is carried out through a classical statistical method of hypothesis testing by using the parameter uncertainty information obtained through nonlinear least squares fitting. The efficacy of the model validation strategy is demonstrated through the model acceptance with 8% maximum error in cell current.

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Model validation and performance analysis of regenerative solid oxide cells: Electrolytic operation

Cited by 76 publications

References 30 publications

Hydrogen and synthetic fuel production using high temperature solid oxide electrolysis cells (SOECs)

Hydrogen and synthetic fuel production using high temperature solid oxide electrolysis cells (SOECs)

Membrane electrolysis—History, current status and perspective

Statistical method‐based calibration and validation of a solid oxide fuel cell model

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