OS5-02 小型円筒形状固体酸化物形燃料電池の発電特性(OS5 水素・燃料電池)

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In this paper, we investigate the effects of fuel supply condition on the power generation characteristics of small tubular type solid oxide fuel cell (SOFC). In the experiments, under the constant furnace temperature condition (800℃), hydrogen and nitrogen mixtures (H_2/N_2=5/95 and 10/90) are supplied to the single cell with different flow rate conditions. The results show that the effects of fuel flow rate and hydrogen concentration on the current-voltage characteristics are very small. However, the fuel supply conditions have the major influence on the fuel utilization and power generation performance, specifically the smaller flow rate and the lower concentration lead the utilization and the efficiency into higher. At the operating point, which gives the maximum power generation, the fuel utilization and the power generation efficiency are around 5% and 1.8%, respectively. The optimization of the fuel supply condition is mandatory for the performance improvement.
一般社団法人日本機械学会の論文
2005-06-28