Characterization and performance study of commercially available solid oxide cell stacks for an autonomous system

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Abstract

The solid oxide cell (SOC) is a key technology for a combined generation of electricity, heat and valuable fuels in a highly efficient manner. By integrating a reversible SOC module in a compact unit, an autonomous reversible system may be realized. In order to obtain more information on the durability and reliability of SOCs, relevant stacks from different manufacturer are operated in both fuel cell and electrolysis mode under realistic operating conditions. The stacks are at relevant research and operational testing level. Thus, they are subjected to similar and comparable conditions while remain within given system boundaries. The results provide an insight for assessing the possibilities with respect to practical application under full load in fuel cell mode and efficient operation with a constantly high reactant conversion of 80% in both H2O- and co-electrolysis. The resulting operating maps can be considered and used for model evaluations and system designs. Further suggestions and proposals for improvements to be made are related to the thermal layout and the gas flow management of the experimental design in order to obtain more uniform cell performances.
Original languageEnglish
Article number112215
Number of pages12
JournalEnergy conversion and management
Volume203
Publication statusPublished - 2020

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Electrolysis
Fuel cells
Oxides
Design of experiments
Flow of gases
Durability
Electricity
Systems analysis
Testing
Hot Temperature

Keywords

  • Solid oxide cell
  • System integration
  • Stack
  • Steady-state operation

Cite this

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title = "Characterization and performance study of commercially available solid oxide cell stacks for an autonomous system",
abstract = "The solid oxide cell (SOC) is a key technology for a combined generation of electricity, heat and valuable fuels in a highly efficient manner. By integrating a reversible SOC module in a compact unit, an autonomous reversible system may be realized. In order to obtain more information on the durability and reliability of SOCs, relevant stacks from different manufacturer are operated in both fuel cell and electrolysis mode under realistic operating conditions. The stacks are at relevant research and operational testing level. Thus, they are subjected to similar and comparable conditions while remain within given system boundaries. The results provide an insight for assessing the possibilities with respect to practical application under full load in fuel cell mode and efficient operation with a constantly high reactant conversion of 80{\%} in both H2O- and co-electrolysis. The resulting operating maps can be considered and used for model evaluations and system designs. Further suggestions and proposals for improvements to be made are related to the thermal layout and the gas flow management of the experimental design in order to obtain more uniform cell performances.",
keywords = "Solid oxide cell, System integration, Stack, Steady-state operation",
author = "Michael Preininger and Bernhard St{\"o}ckl and Vanja Subotić and Christoph Hochenauer",
year = "2020",
language = "English",
volume = "203",
journal = "Energy conversion and management",
issn = "0196-8904",
publisher = "Elsevier Limited",

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TY - JOUR

T1 - Characterization and performance study of commercially available solid oxide cell stacks for an autonomous system

AU - Preininger, Michael

AU - Stöckl, Bernhard

AU - Subotić, Vanja

AU - Hochenauer, Christoph

PY - 2020

Y1 - 2020

N2 - The solid oxide cell (SOC) is a key technology for a combined generation of electricity, heat and valuable fuels in a highly efficient manner. By integrating a reversible SOC module in a compact unit, an autonomous reversible system may be realized. In order to obtain more information on the durability and reliability of SOCs, relevant stacks from different manufacturer are operated in both fuel cell and electrolysis mode under realistic operating conditions. The stacks are at relevant research and operational testing level. Thus, they are subjected to similar and comparable conditions while remain within given system boundaries. The results provide an insight for assessing the possibilities with respect to practical application under full load in fuel cell mode and efficient operation with a constantly high reactant conversion of 80% in both H2O- and co-electrolysis. The resulting operating maps can be considered and used for model evaluations and system designs. Further suggestions and proposals for improvements to be made are related to the thermal layout and the gas flow management of the experimental design in order to obtain more uniform cell performances.

AB - The solid oxide cell (SOC) is a key technology for a combined generation of electricity, heat and valuable fuels in a highly efficient manner. By integrating a reversible SOC module in a compact unit, an autonomous reversible system may be realized. In order to obtain more information on the durability and reliability of SOCs, relevant stacks from different manufacturer are operated in both fuel cell and electrolysis mode under realistic operating conditions. The stacks are at relevant research and operational testing level. Thus, they are subjected to similar and comparable conditions while remain within given system boundaries. The results provide an insight for assessing the possibilities with respect to practical application under full load in fuel cell mode and efficient operation with a constantly high reactant conversion of 80% in both H2O- and co-electrolysis. The resulting operating maps can be considered and used for model evaluations and system designs. Further suggestions and proposals for improvements to be made are related to the thermal layout and the gas flow management of the experimental design in order to obtain more uniform cell performances.

KW - Solid oxide cell

KW - System integration

KW - Stack

KW - Steady-state operation

M3 - Article

VL - 203

JO - Energy conversion and management

JF - Energy conversion and management

SN - 0196-8904

M1 - 112215

ER -