固体酸化物燃料電池スタック特性に及ぼすガス流れ方式の影響(熱工学,内燃機関,動力など)

概要

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The distribution of temperature of cells in stacks, the thermal stress in cells and the stack performance of planar solid oxide fuel cells (SOFC) were analyzed numerically. The effects of different gas-flow types, i.e., parallel- or series- and counter- or co- were discussed. The paralled gas-flow type means both of fuel gas and air are supplied equally into all cells in the stack. On the other hand, the series gas-flow type is what the gases are cascaded in the stack. As the results of this analysis, the distribution of temperature of cells in the case of the series- and counter-flow type was most homogeneous among those of the four flow types, resulting in the decrease of the thermal stress in the cells except for the vicinity of gas inlet. Furthermore, the average cell-voltage in the case of the series- and counter-flow type was highest among those of the four flow types, and hardly decreased with increasing the number of cells.
一般社団法人日本機械学会の論文
2005-07-25