固体氧化物燃料电池氧化还原反应热流场模拟

摘要

The thermal flow field environment of oxidation?reduction reaction is established to study the distribution of the thermal flow field of redox reaction of solid oxide fuel cell.The gas path to connect the tube type high - temperature furnaces is designed.The control of the thermal flow field of the oxidation reduction reaction of the solid oxide fuel cell is studied.The calculation conditions are analyzed and the thermal flow field of redox reaction is calculated and simulated.The experimental results show:The temperature field of the redox reaction heat flow field can be divided into 9 regions with 293 K, 324.111 K,355.222 K,386.333 K,417.444 K,448.556 K,479.667 K,510.778 K,541.889 K and 573 K contours.The range of velocity field of X coordinate direction is from -0.200 261 to 0.177 592.The range of velocity field ofY coordinate direction is from -0.275 204 to 0.260 32.And the velocity vector is in the range of 0~0.284 156.Those help to visualize gas distribution and gradient process of redox reaction.%为了研究固体氧化物燃料电池的氧化还原反应的热流场分布情况，建立了氧化还原反应的热流场环境．设计了连接管式高温炉的气体通路，研究了固体氧化物燃料电池在氧化还原反应中热流场的控制方式，分析了氧化还原反应热流场计算条件，并使用数值模拟工具进行计算与模拟．实验结果表明：氧化还原反应热流场的温度分布可以分为293 K、324．111 K、355．222 K、386．333 K、417．444 K、448．556 K、479．667 K、510．778 K、541．889 K 和573 K 等9个温度场分布等值区域，X 坐标方向速度场分布范围为－0．200261～0．177592，Y 坐标方向速度场分布范围为－0．275204～0．26032，及速度矢量范围为0～0．284156，有助于显现氧化还原气体分布状况和氧化还原反应渐变过程．