DC Field | Value | Language |
---|---|---|
dc.contributor.author | Guk, Erdogan | ko |
dc.contributor.author | Ranaweera, Manoj | ko |
dc.contributor.author | Venkatesan, Vijay | ko |
dc.contributor.author | Kim, Jung-Sik | ko |
dc.contributor.author | Jung, WooChul | ko |
dc.date.accessioned | 2021-01-28T05:54:08Z | - |
dc.date.available | 2021-01-28T05:54:08Z | - |
dc.date.created | 2021-01-12 | - |
dc.date.issued | 2020-12 | - |
dc.identifier.citation | APPLIED ENERGY, v.280 | - |
dc.identifier.issn | 0306-2619 | - |
dc.identifier.uri | http://hdl.handle.net/10203/280050 | - |
dc.description.abstract | The electrode temperature distribution of a solid oxide fuel cell is an important parameter to consider for gaining better insight into the cell performance and its temperature-related degradations. The present efforts of measuring gas channel temperatures do not accurately reveal the cell surface temperature distribution. Therefore, the authors propose a cell-integrated multi-junction thermocouple array to measure the electrode temperature distribution from a working solid oxide fuel cell. In this work, the authors deposited a thin film/wire multi-channel thermal array on the cathode of a commercially-sourced solid oxide fuel cell. The temperature of the cell was measured under varying fuel compositions of hydrogen and nitrogen. The multi-channel array showed excellent temperature correlation with the fuel flow rate and with the cell's performance whilst commercial thermocouples showed a very dull response (10 similar to 20 degrees C discrepancy between thermocouples and the multi-channel array). Furthermore, cell temperature measurements via the multi-channel array enabled detecting potential fuel crossover. This diagnostic approach is applied to a working solid oxide fuel cell, yielding insights into key degradation modes including gas-leakage induced temperature instability, its relation to the theoretical open circuit voltage and current output, and propagation of structural degradation. It is envisaged that the use of the multi-thermocouple array techniques could lead to significant improvements in the design of electrochemical energy devices, like fuel cells and batteries and their safety features, and other hard-to-reach devices such as inside an internal combustion engine or turbine blades. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | In-situ temperature monitoring directly from cathode surface of an operating solid oxide fuel cell | - |
dc.type | Article | - |
dc.identifier.wosid | 000594134700005 | - |
dc.identifier.scopusid | 2-s2.0-85092933449 | - |
dc.type.rims | ART | - |
dc.citation.volume | 280 | - |
dc.citation.publicationname | APPLIED ENERGY | - |
dc.identifier.doi | 10.1016/j.apenergy.2020.116013 | - |
dc.contributor.localauthor | Jung, WooChul | - |
dc.contributor.nonIdAuthor | Guk, Erdogan | - |
dc.contributor.nonIdAuthor | Ranaweera, Manoj | - |
dc.contributor.nonIdAuthor | Venkatesan, Vijay | - |
dc.contributor.nonIdAuthor | Kim, Jung-Sik | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Solid oxide fuel cells | - |
dc.subject.keywordAuthor | Cathode temperature of SOFC | - |
dc.subject.keywordAuthor | Thin-film thermocouples | - |
dc.subject.keywordAuthor | Multi-thermocouple array | - |
dc.subject.keywordAuthor | Fuel flowrate-OCV relationship | - |
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