平板状固体氧化物燃料电池电化学特性Simlink建模与仿真

Simulink Modelling and simulation on electrochemical performance of planar solid oxide fuel cell(SOFC)

在分析平板状固体氧化物燃料电池电化学特性的基础上,建立了Simlink仿真模型,探讨了工作温度和燃料中水蒸气含量对燃料电池理想电势和有效电势的影响。仿真结果表明,低电流密度下,温度的升高会导致有效电势的降低;高电流密度下,有效电势会随着温度升高而增加。水蒸气含量越低,燃料电池的理想电势和有效电势越高。

Based on the analysis of the electrochemical performance for the planar SOFC, the simulation model is established by the software Simlink. The influence of the working temperature and the content of the water vapour in the fuel on the ideal potential and cell voltage of the fuel cell is discussed. The results of the simulation show that, at the condition of low current density, the raise of the temperature will cause to the drop of the cell voltage; at the condition of high current density, the result will be contrary. The ideal potential and cell voltage for the fuel cell will raise as the content of the water vapour dropped.