Characterization of a Planar Solid Oxide Cell Stack Operated at Elevated Pressure

Søren Højgaard Jensen; Christopher R. Graves; Ming Chen; J. B. Hansen; Xiufu Sun

doi:10.1149/2.1171614jes

Characterization of a Planar Solid Oxide Cell Stack Operated at Elevated Pressure

Søren Højgaard Jensen, Christopher R. Graves, Ming Chen, J. B. Hansen, Xiufu Sun

Department of Energy Conversion and Storage

Haldor Topsoe AS

Research output: Contribution to journal › Conference article › Research › peer-review

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Abstract

As global and local energy production becomes more dependent on intermittent renewable sources like wind and solar, efficient and reversible conversion of electricity to storable fuels becomes increasingly important. Solid oxide cells (SOCs) are interesting in this context since they can be operated either as electrolyzers (SOEC) to convert electricity to fuels such as hydrogen or methane, and as fuel cells (SOFC) to convert fuels to electricity. Both productivity and conversion efficiency can be improved if the SOC operation pressure can be increased from ambient pressure to 10–30 bar. In this paper we characterize an SOC stack operated at pressures from ambient pressure to 10 bar. The pressure dependency of stack temperature, cell area specific resistance (ASR), current-voltage (iV) curves, stack impedance spectra and pressure drop across the stack and heat exchangers is analyzed in this paper. Additionally, the expected impact on the hydrogen production efficiency and cost is discussed.

Original language	English
Journal	Journal of The Electrochemical Society
Volume	163
Issue number	14
Pages (from-to)	F1596-F1604
Number of pages	9
ISSN	0013-4651
DOIs	https://doi.org/10.1149/2.1171614jes
Publication status	Published - 2016
Event	PRiME 2016/230th ECS Meeting - Honolulu, United States Duration: 2 Oct 2016 → 7 Oct 2016 http://prime-intl.org/

Conference

Conference	PRiME 2016/230th ECS Meeting
Country/Territory	United States
City	Honolulu
Period	02/10/2016 → 07/10/2016
Internet address	http://prime-intl.org/

Bibliographical note

This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.

Keywords

ASR
Hydrogen
Impedance
iV curve
Pressure
SOEC
SOFC

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Characterization of a Planar Solid Oxide Cell Stack Operated at Elevated Pressure",

abstract = "As global and local energy production becomes more dependent on intermittent renewable sources like wind and solar, efficient and reversible conversion of electricity to storable fuels becomes increasingly important. Solid oxide cells (SOCs) are interesting in this context since they can be operated either as electrolyzers (SOEC) to convert electricity to fuels such as hydrogen or methane, and as fuel cells (SOFC) to convert fuels to electricity. Both productivity and conversion efficiency can be improved if the SOC operation pressure can be increased from ambient pressure to 10–30 bar. In this paper we characterize an SOC stack operated at pressures from ambient pressure to 10 bar. The pressure dependency of stack temperature, cell area specific resistance (ASR), current-voltage (iV) curves, stack impedance spectra and pressure drop across the stack and heat exchangers is analyzed in this paper. Additionally, the expected impact on the hydrogen production efficiency and cost is discussed.",

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author = "Jensen, {S{\o}ren H{\o}jgaard} and Graves, {Christopher R.} and Ming Chen and Hansen, {J. B.} and Xiufu Sun",

note = "This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.; PRiME 2016/230th ECS Meeting ; Conference date: 02-10-2016 Through 07-10-2016",

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AU - Graves, Christopher R.

AU - Chen, Ming

AU - Hansen, J. B.

AU - Sun, Xiufu

N1 - This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.

PY - 2016

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N2 - As global and local energy production becomes more dependent on intermittent renewable sources like wind and solar, efficient and reversible conversion of electricity to storable fuels becomes increasingly important. Solid oxide cells (SOCs) are interesting in this context since they can be operated either as electrolyzers (SOEC) to convert electricity to fuels such as hydrogen or methane, and as fuel cells (SOFC) to convert fuels to electricity. Both productivity and conversion efficiency can be improved if the SOC operation pressure can be increased from ambient pressure to 10–30 bar. In this paper we characterize an SOC stack operated at pressures from ambient pressure to 10 bar. The pressure dependency of stack temperature, cell area specific resistance (ASR), current-voltage (iV) curves, stack impedance spectra and pressure drop across the stack and heat exchangers is analyzed in this paper. Additionally, the expected impact on the hydrogen production efficiency and cost is discussed.

AB - As global and local energy production becomes more dependent on intermittent renewable sources like wind and solar, efficient and reversible conversion of electricity to storable fuels becomes increasingly important. Solid oxide cells (SOCs) are interesting in this context since they can be operated either as electrolyzers (SOEC) to convert electricity to fuels such as hydrogen or methane, and as fuel cells (SOFC) to convert fuels to electricity. Both productivity and conversion efficiency can be improved if the SOC operation pressure can be increased from ambient pressure to 10–30 bar. In this paper we characterize an SOC stack operated at pressures from ambient pressure to 10 bar. The pressure dependency of stack temperature, cell area specific resistance (ASR), current-voltage (iV) curves, stack impedance spectra and pressure drop across the stack and heat exchangers is analyzed in this paper. Additionally, the expected impact on the hydrogen production efficiency and cost is discussed.

KW - ASR

KW - Hydrogen

KW - Impedance

KW - iV curve

KW - Pressure

KW - SOEC

KW - SOFC

U2 - 10.1149/2.1171614jes

DO - 10.1149/2.1171614jes

M3 - Conference article

SN - 0013-4651

VL - 163

SP - F1596-F1604

JO - Journal of The Electrochemical Society

JF - Journal of The Electrochemical Society

IS - 14

T2 - PRiME 2016/230th ECS Meeting

Y2 - 2 October 2016 through 7 October 2016

ER -

Characterization of a Planar Solid Oxide Cell Stack Operated at Elevated Pressure

Abstract

Conference

Bibliographical note

Keywords

UN SDGs

Access to Document

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