Numerical Analysis of Flow in U-Type Solid Oxide Fuel Cell Stacks
Numerical analysis of a U-type solid oxide fuel cell stack was performed using computational fluid dynamics to investigate the effects of stack capacities and fuel/air utilization rates on the internal flow uniformity. The results indicated that increasing the fuel/air utilization rate improved the...
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2024-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/22/5764 |
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| author | Hao Yuan Yin Kun Woo Yi Young Jin Kim Hyeon Jin Kim Kyong Sik Yun Ji Haeng Yu |
| author_facet | Hao Yuan Yin Kun Woo Yi Young Jin Kim Hyeon Jin Kim Kyong Sik Yun Ji Haeng Yu |
| author_sort | Hao Yuan Yin |
| collection | DOAJ |
| description | Numerical analysis of a U-type solid oxide fuel cell stack was performed using computational fluid dynamics to investigate the effects of stack capacities and fuel/air utilization rates on the internal flow uniformity. The results indicated that increasing the fuel/air utilization rate improved the gas flow uniformity within the stack for the same stack capacity. The uniformity in the anode fluid domain was better than that in the cathode fluid domain. Furthermore, the flow uniformity within the stack was associated with the percentage of pressure drop in the core region of the stack. The larger the percentage of pressure drop in the core region, the more uniform the flow inside the stack. Additionally, under a fuel utilization rate of 75%, the computational results exhibited excessively high fuel utilization rates in the top cell of a 3 kWe stack, indicating a potential risk of fuel depletion during actual stack operation. |
| format | Article |
| id | doaj-art-32f6608afdab4b3d96f1fda5b299f9a6 |
| institution | OA Journals |
| issn | 1996-1073 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-32f6608afdab4b3d96f1fda5b299f9a62025-08-20T01:53:45ZengMDPI AGEnergies1996-10732024-11-011722576410.3390/en17225764Numerical Analysis of Flow in U-Type Solid Oxide Fuel Cell StacksHao Yuan Yin0Kun Woo Yi1Young Jin Kim2Hyeon Jin Kim3Kyong Sik Yun4Ji Haeng Yu5Department of Mechanical Engineering, Hannam University, 70 Hannam-ro, Daedeok-gu, Daejeon 34430, Republic of KoreaDepartment of Mechanical Engineering, Hannam University, 70 Hannam-ro, Daedeok-gu, Daejeon 34430, Republic of KoreaDepartment of Mechanical Engineering, Hannam University, 70 Hannam-ro, Daedeok-gu, Daejeon 34430, Republic of KoreaKorea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of KoreaKorea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of KoreaKorea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of KoreaNumerical analysis of a U-type solid oxide fuel cell stack was performed using computational fluid dynamics to investigate the effects of stack capacities and fuel/air utilization rates on the internal flow uniformity. The results indicated that increasing the fuel/air utilization rate improved the gas flow uniformity within the stack for the same stack capacity. The uniformity in the anode fluid domain was better than that in the cathode fluid domain. Furthermore, the flow uniformity within the stack was associated with the percentage of pressure drop in the core region of the stack. The larger the percentage of pressure drop in the core region, the more uniform the flow inside the stack. Additionally, under a fuel utilization rate of 75%, the computational results exhibited excessively high fuel utilization rates in the top cell of a 3 kWe stack, indicating a potential risk of fuel depletion during actual stack operation.https://www.mdpi.com/1996-1073/17/22/5764SOFCstacknumerical analysespressure distributionflow uniformity |
| spellingShingle | Hao Yuan Yin Kun Woo Yi Young Jin Kim Hyeon Jin Kim Kyong Sik Yun Ji Haeng Yu Numerical Analysis of Flow in U-Type Solid Oxide Fuel Cell Stacks Energies SOFC stack numerical analyses pressure distribution flow uniformity |
| title | Numerical Analysis of Flow in U-Type Solid Oxide Fuel Cell Stacks |
| title_full | Numerical Analysis of Flow in U-Type Solid Oxide Fuel Cell Stacks |
| title_fullStr | Numerical Analysis of Flow in U-Type Solid Oxide Fuel Cell Stacks |
| title_full_unstemmed | Numerical Analysis of Flow in U-Type Solid Oxide Fuel Cell Stacks |
| title_short | Numerical Analysis of Flow in U-Type Solid Oxide Fuel Cell Stacks |
| title_sort | numerical analysis of flow in u type solid oxide fuel cell stacks |
| topic | SOFC stack numerical analyses pressure distribution flow uniformity |
| url | https://www.mdpi.com/1996-1073/17/22/5764 |
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