进气温度对Ni-YSZ阳极支撑型平板式SOFC工作特性的影响  

Effect of Inlet Temperature on the Performance of Ni-YSZ Anode Supported Planar Solid Oxide Fuel Cell

作　　者：于建国[1] 王玉璋[1] 翁史烈[1] 

机构地区：[1]上海交通大学机械与动力工程学院,动力机械与工程教育部重点实验室,上海200240

出　　处：《硅酸盐学报》2011年第7期1118-1123,共6页Journal of The Chinese Ceramic Society

基　　金：教育部留学回国人员科研启动基金;上海交通大学研究生创新能力培养专项基金;上海市科委科技攻关计划(08DZ12-00102);国家“973”计划(2007CB210102)资助项目

摘　　要：评估了进气温度对以氢气为燃料的平板式电极支撑固体氧化物燃料电池(planar electrode supported solid oxide fuel cell,PES-SOFC)工作特性的影响,结果表明:在设定总电流情况下,组分分布随进气温度变化不明显;随着进气温度从1 273.15 K下降到1 023.15 K,输出电压逐渐减小,且减小趋势增加;当进气温度低于973.15 K时,平板式SOFC入口段Nernst电动势几乎被Ohm过电势和活化过电势抵消;因此,对于以氢气为燃料、镍掺杂氧化钇稳定氧化锆(yttria stabilized zirconia,YSZ)Ni-YSZ/YSZ为阳极和电解质层的平板式SOFC,不建议在低于973.15 K的进气温度下运行。The performance of planar electrode supported solid oxide fuel cell（PES-SOFC） fueled with hydrogen was investigated at various inlet temperatures.The results showed that,the distribution of species did not vary with the temperature under the constant total current.The output voltage decreased with the decrement of inlet temperature from 1 273.15 K to 1 023.15 K.In addition,when the inlet temperature was 973.15 K,the Nernst potential was almost exhausted by ohmic overpotential and activation overpotential in the inlet region of planar SOFC.Thus,the planar SOFC for hydrogen as fuel and Ni-YSZ（yttria stabilized zirconia）/YSZ as an-ode/electrolyte could not be recommended to perform at the inlet temperature of 973.15 K.

关 键 词：固体氧化物燃料电池 镍掺杂的氧化钇稳定氧化锆 进气温度 输出电压 

分 类 号：TM911.4[电气工程—电力电子与电力传动]