Performance of SOFC Power Unit Assisted by Paper-Structured Catalyst
High temperature SOFCs can convert chemical energy of a fuel directly to electricity even in the feed of low calorie gas. The use of engine-exhaust, which is most accessible lean gas, as a fuel for SOFC is promising idea. Recently, a compact SOFC unit operated by the direct feed of engine-exhaust was developed by Atsumitec Co., Ltd. However, performance of the DIR-SOFC unit can easily deteriorate, unless fuel is homogeneously supplied into the unit in which several numbers of stacks were arrayed. This study demonstrated that insertion of the HDT-dispersed PSC into the real SOFC stack between the cells led to 36 % increase in the performance because PSCs can boost up the output power of stacks placed at the positions where fuel is not well supplied.