Performance investigation of PEMFC with rectangle blockages in Gas Channel based on field synergy principle
Abstract This work, using three-dimension proton exchange membrane fuel cell (PEMFC) model combined with theoretical analysis, is mainly to improve the performance of PEMFC through optimizations of fuel cell structure, adding rectangle blockages in the gas channel. Performance compari...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2021
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| Online Access: | https://hdl.handle.net/1721.1/131560 |
| _version_ | 1826216796151087104 |
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| author | Shen, Jun Zeng, Lingping Liu, Zhichun Liu, Wei |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Shen, Jun Zeng, Lingping Liu, Zhichun Liu, Wei |
| author_sort | Shen, Jun |
| collection | MIT |
| description | Abstract
This work, using three-dimension proton exchange membrane fuel cell (PEMFC) model combined with theoretical analysis, is mainly to improve the performance of PEMFC through optimizations of fuel cell structure, adding rectangle blockages in the gas channel. Performance comparison, velocity distribution, interface reactant concentration difference, and pressure drop have been studied in the paper. The result shows that, longitudinal vortices would appear and the performance could be improved with the addition of blockages in the gas channel, especially at high current density with closer arrangement. According to field synergy principle, average mass transfer synergy angle could prove the superiority of optimized structure in the ability of mass transfer. Besides, a novel physical quantity, effective mass transfer coefficient, has been proposed. The effective mass transfer coefficient, is the ability of mass transfer in the direction of electrochemical reaction in PEMFC, which could also give mechanism explanation for the performance improvement. |
| first_indexed | 2024-09-23T16:53:15Z |
| format | Article |
| id | mit-1721.1/131560 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:53:15Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1315602023-03-24T17:38:50Z Performance investigation of PEMFC with rectangle blockages in Gas Channel based on field synergy principle Shen, Jun Zeng, Lingping Liu, Zhichun Liu, Wei Massachusetts Institute of Technology. Department of Mechanical Engineering Abstract This work, using three-dimension proton exchange membrane fuel cell (PEMFC) model combined with theoretical analysis, is mainly to improve the performance of PEMFC through optimizations of fuel cell structure, adding rectangle blockages in the gas channel. Performance comparison, velocity distribution, interface reactant concentration difference, and pressure drop have been studied in the paper. The result shows that, longitudinal vortices would appear and the performance could be improved with the addition of blockages in the gas channel, especially at high current density with closer arrangement. According to field synergy principle, average mass transfer synergy angle could prove the superiority of optimized structure in the ability of mass transfer. Besides, a novel physical quantity, effective mass transfer coefficient, has been proposed. The effective mass transfer coefficient, is the ability of mass transfer in the direction of electrochemical reaction in PEMFC, which could also give mechanism explanation for the performance improvement. 2021-09-20T17:20:23Z 2021-09-20T17:20:23Z 2018-09-01 2020-09-24T20:54:12Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/131560 en https://doi.org/10.1007/s00231-018-2473-5 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. Springer-Verlag GmbH Germany, part of Springer Nature application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Shen, Jun Zeng, Lingping Liu, Zhichun Liu, Wei Performance investigation of PEMFC with rectangle blockages in Gas Channel based on field synergy principle |
| title | Performance investigation of PEMFC with rectangle blockages in Gas Channel based on field synergy principle |
| title_full | Performance investigation of PEMFC with rectangle blockages in Gas Channel based on field synergy principle |
| title_fullStr | Performance investigation of PEMFC with rectangle blockages in Gas Channel based on field synergy principle |
| title_full_unstemmed | Performance investigation of PEMFC with rectangle blockages in Gas Channel based on field synergy principle |
| title_short | Performance investigation of PEMFC with rectangle blockages in Gas Channel based on field synergy principle |
| title_sort | performance investigation of pemfc with rectangle blockages in gas channel based on field synergy principle |
| url | https://hdl.handle.net/1721.1/131560 |
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