Journal article
Degradation behaviors of solid oxide fuel cell stacks in steady-state and cycling conditions
Energy & Fuels, Vol.34(11), pp.14864-14873
2020
Abstract
Enhancing the durability of solid oxide fuel cell (SOFC) technologies is a key strategy to accelerate their commercialization and use in several applications. This study aims to evaluate the performance and durability of a 100 W SOFC stack system in steady-state and current load cycling conditions to elucidate the degradation mechanism. The stack temperature and current loads are designated in this study as parameters that greatly affect SOFC degradation. The initial and degraded performances of the SOFC stack are conducted at different stack temperatures in the range of 650–750 °C while testing under constant current load is performed at a fixed current density, 0.33 A·cm–2 and temperature, 750 °C. Degradation tests are conducted based on current load cycling (24 cycles) at a stack temperature of 750 °C and for currents up to 19 A with a ramp rate of 0.5 A·min–1. The results show that the total degradation rates are 54, 297, and 370 mV over 72 h at stake temperatures of 650, 700, and 750 °C, respectively, thus indicating the observed highest degradation owing to the influence of thermal stresses. During the 24 current load cycles, no significant degradation behavior is detected, only steady drops at 0.5%.
Details
- Title
- Degradation behaviors of solid oxide fuel cell stacks in steady-state and cycling conditions
- Authors/Creators
- F. Alenazey (Author/Creator) - King Abdulaziz City for Science and TechnologyY. Alyousef (Author/Creator) - King Abdulaziz City for Science and TechnologyB. AlOtaibi (Author/Creator) - King Abdulaziz City for Science and TechnologyG. Almutairi (Author/Creator) - King Abdulaziz City for Science and TechnologyM. Minakshi (Author/Creator) - Murdoch UniversityC.K. Cheng (Author/Creator) - Khalifa University of Science and TechnologyD-V.N. Vo (Author/Creator)
- Publication Details
- Energy & Fuels, Vol.34(11), pp.14864-14873
- Publisher
- American Chemical Society
- Identifiers
- 991005543001507891
- Copyright
- © 2020 American Chemical Society
- Murdoch Affiliation
- School of Engineering and Energy
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 5 Physics
- 5.77 Applied Physics
- 5.77.285 Solid Oxide Fuel Cell
- Web Of Science research areas
- Energy & Fuels
- Engineering, Chemical
- ESI research areas
- Engineering