3604 小型円筒形状固体酸化物形燃料電池の発電性能試験(S56-1 マイクロ・モバイルエネルギー利用技術(1),S56 マイクロ・モバイルエネルギー利用技術)

概要

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In this paper, we investigate the effects of fuel supply conditions on the power generation characteristics of a small tubular solid oxide fuel cell (SOFC), In the experiments, the furnace inside temperature is fixed at 800℃ or 850℃, and the hydrogen/nitrogen mixture (1%/99% or 10%/90%) is fed into the single cell as the fuel with the different flow rate conditions. The results show that the flow rate affects the current-voltage characteristics, that is, the net voltage becomes higher with increasing the fuel flow rate. The data of the fuel utilization and the power generation efficiency at the operating points, which give the maximum power output individually, are estimated. Therefore, it is found that excess fuel supply leads to the increase of power output, but the fuel utilization and efficiency decrease simultaneously. The optimum flow rate does exist according to the respective hydrogen concentration. Under the operation with 10% hydrogen, the power generation efficiency reaches to 4.0% with the fuel flow rate of 20mL/min.
一般社団法人日本機械学会の論文
2005-09-18