Journal article
SOFC stacks for mobile applications with excellent robustness towards thermal stresses
Department of Energy Conversion and Storage, Technical University of Denmark1
Solid State Chemistry, Department of Energy Conversion and Storage, Technical University of Denmark2
Electrochemistry, Department of Energy Conversion and Storage, Technical University of Denmark3
Functional Oxides, Department of Energy Conversion and Storage, Technical University of Denmark4
Foss A/S5
SINTEF6
Continuum Modelling and Testing, Department of Energy Conversion and Storage, Technical University of Denmark7
Aalborg University8
Solid oxide fuel cells (SOFC) are attractive power units for mobile applications, like auxiliary power units or range extenders, due to high electrical efficiencies, avoidance of noble metals, fuel flexibility ranging from hydrogen to hydrogen carriers such as ammonia, methanol or e-gas, and tolerance towards CO and other fuel impurities.
Among challenges hindering more wide-spread use are the robustness under thermal cycling. The current study employs short stacks containing anode or metal supported SOFCs, which were subjected to thermal cycles in a furnace and under more realistic conditions without external furnace. Heating from 100 °C to operating temperature was accomplished by sending hot air through the cathode compartment and heating from bottom (and top) of the stack, reaching a fastest ramping time of ca. 1 h.
The stacks remained intact under severe temperature gradients of at least 20 °C/cm for anode supported and 30 °C/cm for metal supported SOFCs.
Language: | English |
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Year: | 2020 |
Pages: | 29201-29211 |
ISSN: | 18793487 and 03603199 |
Types: | Journal article |
DOI: | 10.1016/j.ijhydene.2020.07.159 |
ORCIDs: | Hagen, A. , Wulff, Anders Christian , Sun, Xiufu , 0000-0001-8148-6863 , Frandsen, Henrik Lund , Kiebach, Wolff-Ragnar , Hendriksen, Peter Vang and Ritucci, Ilaria |