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首页> 外文会议>International symposium on solid oxide fuel cells >SOFC WITH INTERNAL REFORMING OF METHANE AND EFFECT OF GAS SPECIES ON POWER GENERATION
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SOFC WITH INTERNAL REFORMING OF METHANE AND EFFECT OF GAS SPECIES ON POWER GENERATION

机译：具有内部重整甲烷的SOFC和气体物种对发电的影响

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Power generation characteristics of SOFC with internal steam reforming of methane was investigated. Supply of pre-reforming gas to the anode always gave rise to lower generation characteristics than that of post-reforming gas. Although H_2-H_2O and CO-CO_2 fuel systems led to almost the same open circuit voltage at the same reductant / oxidant ratio, the output voltage during power generation was always higher for the H_2-H_2O at every current density. Response of partial pressure of fuels (H_2 or CO) in Ni-YSZ porous electrode was measured by using fuel electrode supported SOFC and oxygen sensor. The diffusion rates of the fuels influenced the concentration of the fuel in the pores of the Ni-YSZ anode. This indicates that the concentration overvoltage controlled by the diffusion process of fuel gases in the electrode pores significantly affects the overall electrode reaction at the triple phase boundary. Response to partial pressure change was faster for the H_2-H_2O fuel than for the CO-CO_2 fuel.
机译：研究了具有甲烷内部蒸汽重整的SOFC的发电特性。向阳极供应预先改造气体总是产生比重整后气体的产生特性。尽管H_2-H_2O和CO-CO_2燃料系统以相同的还原剂/氧化比率导致几乎相同的开路电压，但是在每个电流密度下发电期间的输出电压总是更高的H_2-H_2O。通过使用燃料电极支撑的SOFC和氧传感器测量Ni-YSZ多孔电极中燃料（H_2或CO）的分压（H_2或CO）的响应。燃料的扩散速率影响了Ni-YSZ阳极孔中燃料的浓度。这表明由电极孔中​​的燃料气体扩散过程控制的浓度过电压显着影响三相边界处的整体电极反应。对于H_2-H_2O燃料，对部分压力变化的响应比CO-CO_2燃料更快。

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