TY - GEN
T1 - Power generation properties of a micro tubular SOFC bundle under pressurized conditions
AU - Hashimoto, S.
AU - Liu, Y.
AU - Asano, K.
AU - Mori, M.
AU - Funahashi, Y.
AU - Fujishiro, Y.
PY - 2008
Y1 - 2008
N2 - A micro tubular solid oxide fuel cell (SOFC) bundle was developed based on new concept. The anode-supported micro tubular SOFCs with the cell configuration, La0.6Sr0.4Co0.2Fe0.8 O3-δ (LSCF) - Ce0.9Gd0.1O 2-δ (CGO) cathode / CGO electrolyte /Ni - CGO anode were fabricated and were bundled by a porous LSCF current collecting cube 1 cm on a side. The power generation test of the fabricated SOFC bundle was carried out under pressurized conditions. Using wet 30%H2 / N2 mixture gas and air, the cubic power density of the bundle at 500°C was 0.47 Wcm-3 at 0.4Acm-2, atmospheric pressure (0.1 MPa). With increasing operating pressure, the performance has been improved, and the cubic power density finally reached to 0.66 Wcm-3 at 0.6MPa. Pressurization effect for the power improvement was brought about by the open circuit voltage enhancement and reduction of the polarization resistance.
AB - A micro tubular solid oxide fuel cell (SOFC) bundle was developed based on new concept. The anode-supported micro tubular SOFCs with the cell configuration, La0.6Sr0.4Co0.2Fe0.8 O3-δ (LSCF) - Ce0.9Gd0.1O 2-δ (CGO) cathode / CGO electrolyte /Ni - CGO anode were fabricated and were bundled by a porous LSCF current collecting cube 1 cm on a side. The power generation test of the fabricated SOFC bundle was carried out under pressurized conditions. Using wet 30%H2 / N2 mixture gas and air, the cubic power density of the bundle at 500°C was 0.47 Wcm-3 at 0.4Acm-2, atmospheric pressure (0.1 MPa). With increasing operating pressure, the performance has been improved, and the cubic power density finally reached to 0.66 Wcm-3 at 0.6MPa. Pressurization effect for the power improvement was brought about by the open circuit voltage enhancement and reduction of the polarization resistance.
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U2 - 10.1115/FuelCell2008-65125
DO - 10.1115/FuelCell2008-65125
M3 - Conference contribution
AN - SCOPUS:77952612087
SN - 0791843181
SN - 9780791843185
T3 - Proceedings of the 6th International Conference on Fuel Cell Science, Engineering, and Technology
SP - 211
EP - 214
BT - Proceedings of the 6th International Conference on Fuel Cell Science, Engineering, and Technology
T2 - 6th International Conference on Fuel Cell Science, Engineering, and Technology
Y2 - 16 June 2008 through 18 June 2008
ER -