The reactions of low and middle concentration dry methane were studied over the anode of solid oxide fuel cell(SOFC) with Ni/yttria-stabilized zirconia(YSZ) anode and YSZ electrolyte.The production rates of different ...The reactions of low and middle concentration dry methane were studied over the anode of solid oxide fuel cell(SOFC) with Ni/yttria-stabilized zirconia(YSZ) anode and YSZ electrolyte.The production rates of different gases at anode outlet were measured at different current density values.Mass balance and the relation of production rate with reaction rate were used to analyze the chemical and electrochemical reactions taking place in parallel.For low concentration dry methane,partial oxidation of methane occurred at low current density,while electrochemical oxidations of hydrogen and carbon monoxide took place at increased current density.For middle concentration methane,only partial oxidation of methane occurred.Carbon deposition was found in all the tests.展开更多
为考核微型燃料电池热-电联供系统的热量利用程度,采集了一年中日本某家庭使用的1 k W质子交换膜燃料电池(PEMFC)的微型热-电联产系统各单元的数据,进行统计与分析,从热量利用的角度,计算各单元热量输入输出效率。结果表明,储热水箱散...为考核微型燃料电池热-电联供系统的热量利用程度,采集了一年中日本某家庭使用的1 k W质子交换膜燃料电池(PEMFC)的微型热-电联产系统各单元的数据,进行统计与分析,从热量利用的角度,计算各单元热量输入输出效率。结果表明,储热水箱散热与输运管道散热是系统热损失较多的薄弱环节。相关统计与分析,对改进类似热-电联产系统,进一步提高能源综合利用效率具有参考意义。展开更多
文摘The reactions of low and middle concentration dry methane were studied over the anode of solid oxide fuel cell(SOFC) with Ni/yttria-stabilized zirconia(YSZ) anode and YSZ electrolyte.The production rates of different gases at anode outlet were measured at different current density values.Mass balance and the relation of production rate with reaction rate were used to analyze the chemical and electrochemical reactions taking place in parallel.For low concentration dry methane,partial oxidation of methane occurred at low current density,while electrochemical oxidations of hydrogen and carbon monoxide took place at increased current density.For middle concentration methane,only partial oxidation of methane occurred.Carbon deposition was found in all the tests.
文摘为考核微型燃料电池热-电联供系统的热量利用程度,采集了一年中日本某家庭使用的1 k W质子交换膜燃料电池(PEMFC)的微型热-电联产系统各单元的数据,进行统计与分析,从热量利用的角度,计算各单元热量输入输出效率。结果表明,储热水箱散热与输运管道散热是系统热损失较多的薄弱环节。相关统计与分析,对改进类似热-电联产系统,进一步提高能源综合利用效率具有参考意义。
