Long‐Term Behavior of a Solid Oxide Electrolyzer (SOEC) Stack▴.
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| Title: | Long‐Term Behavior of a Solid Oxide Electrolyzer (SOEC) Stack▴. |
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| Authors: | Lang, M.1 (AUTHOR) michael.lang@dlr.de, Raab, S.1 (AUTHOR), Lemcke, M. S.1 (AUTHOR), Bohn, C.1 (AUTHOR), Pysik, M.1 (AUTHOR) |
| Source: | Fuel Cells. Dec2020, Vol. 20 Issue 6, p690-700. 11p. |
| Subjects: | High temperature electrolysis, Solid oxide fuel cells, Fuel cells, Ohmic resistance, Electrolysis |
| Geographic Terms: | Dresden (Germany), Germany |
| Abstract: | The successful market introduction of the solid oxide fuel/electrolysis cell technology for power‐to‐gas applications requires the reduction of the degradation rates and the better understanding of the degradation mechanisms of the stacks. Therefore, the paper reports and compares the long‐term behavior of a solid oxide cell stack in electrolysis and reversible fuel cell/electrolysis operation. The 30‐cell stack with electrolyte supported cells was supplied by Sunfire GmbH (Dresden/Germany) in the German funded RSOC Project. The stack was operated for 3,370 h in electrolysis and afterwards for 2,500 h in reversible fuel cell/electrolysis mode, each at 70% gas conversion. In the beginning of the test, the stack showed high gas tightness, good performances and high efficiencies in both SOEC and SOFC operations. During 3,370 h of SOEC operation a low degradation of +0.5%/1,000 h was measured. During 2,500 h of reversible fuel cell/electrolysis cycling, the gas tightness of the stack slightly decreased, which led to a temperature increase, and higher degradation rates were observed. The increase of the ohmic resistance contributed mostly to the degradation. Optimized operating conditions for reversible cycling and increasing the purity of the supplied water are foreseen in order to minimize stack degradation in reversible operation. [ABSTRACT FROM AUTHOR] |
| Copyright of Fuel Cells is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 147675766 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Long‐Term Behavior of a Solid Oxide Electrolyzer (SOEC) Stack▴. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Lang%2C+M%2E%22">Lang, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> michael.lang@dlr.de</i><br /><searchLink fieldCode="AR" term="%22Raab%2C+S%2E%22">Raab, S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lemcke%2C+M%2E+S%2E%22">Lemcke, M. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bohn%2C+C%2E%22">Bohn, C.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pysik%2C+M%2E%22">Pysik, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Fuel+Cells%22">Fuel Cells</searchLink>. Dec2020, Vol. 20 Issue 6, p690-700. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22High+temperature+electrolysis%22">High temperature electrolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+oxide+fuel+cells%22">Solid oxide fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Fuel+cells%22">Fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Ohmic+resistance%22">Ohmic resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Electrolysis%22">Electrolysis</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Dresden+%28Germany%29%22">Dresden (Germany)</searchLink><br /><searchLink fieldCode="DE" term="%22Germany%22">Germany</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The successful market introduction of the solid oxide fuel/electrolysis cell technology for power‐to‐gas applications requires the reduction of the degradation rates and the better understanding of the degradation mechanisms of the stacks. Therefore, the paper reports and compares the long‐term behavior of a solid oxide cell stack in electrolysis and reversible fuel cell/electrolysis operation. The 30‐cell stack with electrolyte supported cells was supplied by Sunfire GmbH (Dresden/Germany) in the German funded RSOC Project. The stack was operated for 3,370 h in electrolysis and afterwards for 2,500 h in reversible fuel cell/electrolysis mode, each at 70% gas conversion. In the beginning of the test, the stack showed high gas tightness, good performances and high efficiencies in both SOEC and SOFC operations. During 3,370 h of SOEC operation a low degradation of +0.5%/1,000 h was measured. During 2,500 h of reversible fuel cell/electrolysis cycling, the gas tightness of the stack slightly decreased, which led to a temperature increase, and higher degradation rates were observed. The increase of the ohmic resistance contributed mostly to the degradation. Optimized operating conditions for reversible cycling and increasing the purity of the supplied water are foreseen in order to minimize stack degradation in reversible operation. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Fuel Cells is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/fuce.201900245 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 690 Subjects: – SubjectFull: High temperature electrolysis Type: general – SubjectFull: Solid oxide fuel cells Type: general – SubjectFull: Fuel cells Type: general – SubjectFull: Ohmic resistance Type: general – SubjectFull: Electrolysis Type: general – SubjectFull: Dresden (Germany) Type: general – SubjectFull: Germany Type: general Titles: – TitleFull: Long‐Term Behavior of a Solid Oxide Electrolyzer (SOEC) Stack▴. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Lang, M. – PersonEntity: Name: NameFull: Raab, S. – PersonEntity: Name: NameFull: Lemcke, M. S. – PersonEntity: Name: NameFull: Bohn, C. – PersonEntity: Name: NameFull: Pysik, M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 16156846 Numbering: – Type: volume Value: 20 – Type: issue Value: 6 Titles: – TitleFull: Fuel Cells Type: main |
| ResultId | 1 |
