TY - JOUR
T1 - SOFC stacks for mobile applications with excellent robustness towards thermal stresses
AU - Hagen, A.
AU - Wulff, Anders Christian
AU - Zielke, P.
AU - Sun, Xiufu
AU - Talic, B.
AU - Ritucci, Ilaria
AU - Frandsen, Henrik Lund
AU - Jensen, S. H.
AU - Kiebach, Wolff-Ragnar
AU - Hendriksen, Peter Vang
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
KW - Fast thermal cycling
KW - Metal & anode supported SOFC
KW - Mobile application
KW - Robustness
KW - SOFC stack
KW - Thermal gradients
U2 - 10.1016/j.ijhydene.2020.07.159
DO - 10.1016/j.ijhydene.2020.07.159
M3 - Journal article
AN - SCOPUS:85089355830
SN - 0360-3199
VL - 45
SP - 29201
EP - 29211
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 53
ER -