A comprehensive study on effective triple‐phase boundary density and its correlation with active anode thickness in solid oxide fuel cells
Abstract Solid oxide fuel cells (SOFCs) are highly promising devices for efficient and low‐emission energy conversion. The effective triple‐phase boundary (TPB) density refers to the fraction of percolated TPB density that effectively contributes to the current production during cell operation. This...
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| Format: | Article |
| Language: | English |
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Wiley
2024-09-01
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| Series: | Energy Science & Engineering |
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| Online Access: | https://doi.org/10.1002/ese3.1850 |
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| author | Shingruf Shaukat Asif Nadeem Tabish Muneeb Irshad Samina Akbar Iqra Farhat Liyuan Fan |
| author_facet | Shingruf Shaukat Asif Nadeem Tabish Muneeb Irshad Samina Akbar Iqra Farhat Liyuan Fan |
| author_sort | Shingruf Shaukat |
| collection | DOAJ |
| description | Abstract Solid oxide fuel cells (SOFCs) are highly promising devices for efficient and low‐emission energy conversion. The effective triple‐phase boundary (TPB) density refers to the fraction of percolated TPB density that effectively contributes to the current production during cell operation. This is one of the most fundamental and least understood aspects of the cell design and performance assessment. This study methodically investigates the effective TPB density, using a computational fluid dynamics model based on the TPB‐based kinetics and its correlation with the active anode thickness. Experimental data from previously published studies with varying thicknesses of anode functional layer and operating regimes are utilized to validate the model. The results of this study reaffirm that a significant fraction of the percolated TPB density in SOFCs remains unused during cell operation. This finding emphasizes the need to consider the effective TPB density for theoretical and experimental investigations focusing on optimizing cell performance. Furthermore, an inverse relationship is observed between the effective TPB density and the active anode thickness; a lower active anode thickness corresponds to a higher effective TPB density and vice versa. These findings contribute to advancing sustainable energy systems by guiding the development of more efficient SOFC designs and operational strategies that effectively utilize TPB sites. |
| format | Article |
| id | doaj-art-34d20d1a27de4bd284c791e66c33991f |
| institution | Kabale University |
| issn | 2050-0505 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Energy Science & Engineering |
| spelling | doaj-art-34d20d1a27de4bd284c791e66c33991f2024-11-14T13:05:25ZengWileyEnergy Science & Engineering2050-05052024-09-011293883389410.1002/ese3.1850A comprehensive study on effective triple‐phase boundary density and its correlation with active anode thickness in solid oxide fuel cellsShingruf Shaukat0Asif Nadeem Tabish1Muneeb Irshad2Samina Akbar3Iqra Farhat4Liyuan Fan5Center for Energy Research and Development (CERAD) University of Engineering and Technology Lahore Lahore PakistanDepartment of Chemical Engineering University of Engineering and Technology Lahore Lahore PakistanDepartment of Physics University of Engineering and Technology Lahore Lahore PakistanDepartment of Basic Sciences University of Engineering and Technology Lahore Lahore PakistanDepartment of Electrical Engineering University of Engineering and Technology Lahore Lahore PakistanCollege of Science and Engineering James Cook University Townsville Queensland AustraliaAbstract Solid oxide fuel cells (SOFCs) are highly promising devices for efficient and low‐emission energy conversion. The effective triple‐phase boundary (TPB) density refers to the fraction of percolated TPB density that effectively contributes to the current production during cell operation. This is one of the most fundamental and least understood aspects of the cell design and performance assessment. This study methodically investigates the effective TPB density, using a computational fluid dynamics model based on the TPB‐based kinetics and its correlation with the active anode thickness. Experimental data from previously published studies with varying thicknesses of anode functional layer and operating regimes are utilized to validate the model. The results of this study reaffirm that a significant fraction of the percolated TPB density in SOFCs remains unused during cell operation. This finding emphasizes the need to consider the effective TPB density for theoretical and experimental investigations focusing on optimizing cell performance. Furthermore, an inverse relationship is observed between the effective TPB density and the active anode thickness; a lower active anode thickness corresponds to a higher effective TPB density and vice versa. These findings contribute to advancing sustainable energy systems by guiding the development of more efficient SOFC designs and operational strategies that effectively utilize TPB sites.https://doi.org/10.1002/ese3.1850active anode thicknesseffective TPB densityhydrogen oxidationNi‐YSZTPB‐based kinetics |
| spellingShingle | Shingruf Shaukat Asif Nadeem Tabish Muneeb Irshad Samina Akbar Iqra Farhat Liyuan Fan A comprehensive study on effective triple‐phase boundary density and its correlation with active anode thickness in solid oxide fuel cells Energy Science & Engineering active anode thickness effective TPB density hydrogen oxidation Ni‐YSZ TPB‐based kinetics |
| title | A comprehensive study on effective triple‐phase boundary density and its correlation with active anode thickness in solid oxide fuel cells |
| title_full | A comprehensive study on effective triple‐phase boundary density and its correlation with active anode thickness in solid oxide fuel cells |
| title_fullStr | A comprehensive study on effective triple‐phase boundary density and its correlation with active anode thickness in solid oxide fuel cells |
| title_full_unstemmed | A comprehensive study on effective triple‐phase boundary density and its correlation with active anode thickness in solid oxide fuel cells |
| title_short | A comprehensive study on effective triple‐phase boundary density and its correlation with active anode thickness in solid oxide fuel cells |
| title_sort | comprehensive study on effective triple phase boundary density and its correlation with active anode thickness in solid oxide fuel cells |
| topic | active anode thickness effective TPB density hydrogen oxidation Ni‐YSZ TPB‐based kinetics |
| url | https://doi.org/10.1002/ese3.1850 |
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