固体氧化物燃料电池及其混合发电系统的现状及开发

Development and investigation on the study state of solid oxide fuel cell and hybrid power system

固体氧化物燃料电池(SOFC)以其高能量转换效率、高比功率、无运动部件、堆积结构以及环境友好等特点日益受到重视。文章从燃料电池本体以及基于燃料电池的混合发电系统两方面对发达国家固体氧化物燃料电池的发展进行了调查,通过不同国家开发的电池以及混合发电系统的比较分析,对今后固体氧化物燃料电池的发展起到一定的指导作用。基于对燃料电池外形尺寸、进气道的尺寸和形状等电池结构进行了分析,得出不同结构下电池性能的变化,得到了最有利于燃料电池性能的设计参数。研究结果表明,低电流时,随着多孔电极进气道孔径的增加,电池输出电压也降低;而高电流时,电池输出电压先增大后减少,在孔径为5 mm时电池输出电压最大。

As one of power generation system, Solid Oxide Fuel Cells（SOFCs） had got much attention due to their advantages in terms of high efficiency, no moving part,accumulation layout and friendly environment. The study state of SOFC and hybrid power system in the developed country is investigated in the paper. Through the comparison of various SOFCs and hybrid power systems in different countries, it gives good understand about the development on SOFC. At the same time, the performance of solid oxide fuel cell with different inlet channels is investigated. The study show the output voltage decreases with the increasing of inlet diameter at low current. However, the output voltage firstly increases and then reduces with of inlet diameter at high current . The output voltage will he maximum when inlet diameter is 5mm.