Power generation properties of a micro tubular SOFC bundle under pressurized conditions

Shinichi Hashimoto, Y. Liu, K. Asano, M. Mori, Y. Funahashi, Y. Fujishiro

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the 6th International Conference on Fuel Cell Science, Engineering, and Technology
Pages211-214
Number of pages4
DOIs
Publication statusPublished - 2008 Dec 1
Event6th International Conference on Fuel Cell Science, Engineering, and Technology - Denver, CO, United States
Duration: 2008 Jun 162008 Jun 18

Publication series

NameProceedings of the 6th International Conference on Fuel Cell Science, Engineering, and Technology

Other

Other6th International Conference on Fuel Cell Science, Engineering, and Technology
CountryUnited States
CityDenver, CO
Period08/6/1608/6/18

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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