首页|Experimental study on current distribution in parallel-connected solid oxide fuel cell strings
Experimental study on current distribution in parallel-connected solid oxide fuel cell strings
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To increase the power generated by solid oxide fuel cells(SOFCs),multiple cells have to be connected into a stack.Nonuniformity of cell performance is a worldwide concern in the practical application of stack,which is known to be unavoidable and caused by manufacturing and operating conditions.However,the effect of such nonuniformity on SOFCs that are connected in parallel has not been discussed in detail so far.This paper provides detailed experimental data on the current distribution within a stack with nonuniform cells in parallel connection,based on the basics of electricity and electrochemistry.Particular phenomena found in such a parallel system are the"self-discharge effect"in standby mode and the"capacity-proportional-load sharing effect"under normal operating conditions.It is believed that the experimental method and results proposed in this paper can be applied to other types of fuel cell or even other energy systems.
solid oxide fuel cells(SOFCs)stacknonuniformityparallel connectioncurrent distribution
Jia Lu、Qiang Hu、Jian Wu
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College of Mathematics and Computer Science,Zhejiang Agriculture and Forestry University,Hangzhou 311300,China
Zhejiang Zhentai Energy Technology Co.,Ltd.,Lishui 321400,China
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