A flame fuel cell stack powered by a porous media combustor
By Wang, Yuqing; Shi, Yixiang; Cao, Tianyu; Zeng, Hongyu; Cai, Ningsheng; Ye, Xiaofeng; Wang, Shaorong
Published in International Journal of Hydrogen Energy
NULL
2017
Abstract
Abstract A flame fuel cell stack is successfully assembled and operated for the first time. A micro-tubular solid oxide fuel cell (mT-SOFC) stack was powered by a fuel-rich methane flame in a porous media combustor. The combustor consists of a combustion region and a hot zone. A 36-tube stack is located in the hot zone. The combustion region and the hot zone are connected by an expansion region, which is designed to increase the fuel utilization efficiency of the stack. Four mT-SOFCs are arranged in a parallel configuration, which reached 3.6 W at 0.6 V when operating a fuel-rich methane flame at an equivalence ratio of 1.6. The maximum electric efficiency was 6% with a fuel utilization efficiency of 23%. The present configuration demonstrated the temperature uniformity of a flame-powered stack and is a promising technology for a self-sustained combined heat and power (CHP) system.
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