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1. 发明申请

WO2015044684A1 ANODE BLEED CONTROL IN A FUEL CELL STACK 审中-公开
标题翻译：燃料电池堆中的阳极排放控制
公开(公告)号：WO2015044684A1
公开(公告)日：2015-04-02
申请号：PCT/GB2014/052932
申请日：2014-09-29
申请人： INTELLIGENT ENERGY LIMITED
发明人： RAMA, Pratap , ADCOCK, Paul Leonard , PATEL, Jignesh Karsan Devshi
IPC分类号： H01M8/04 , H01M8/10
CPC分类号： H01M8/04753 , H01M8/04097 , H01M8/04164 , H01M8/04179 , H01M8/04231 , H01M8/04328 , H01M8/04388 , H01M8/04447 , H01M8/045 , H01M8/04552 , H01M8/04559 , H01M8/04641 , H01M8/04649 , H01M8/04761 , H01M8/241 , H01M8/2457 , H01M2008/1095
摘要： An electrochemical fuel cell assembly comprises a fuel cell stack having a fuel delivery inlet and a fuel delivery outlet. The fuel cell stack further includes a number of fuel cells each having a membrane-electrode assembly and a fluid flow path coupled between the fuel delivery inlet and the fuel delivery outlet for delivery of fuel to the membrane- electrode assembly. A fuel delivery conduit is coupled to the fuel delivery inlet for delivery of fluid fuel to the stack. A bleed conduit is coupled to the fuel delivery outlet for venting fluid out of the stack. A variable orifice flow control device coupled to the bleed conduit configured to dynamically vary an amount of fluid from the fuel delivery outlet passing into the bleed conduit as a function of one or more of the control parameters: (i) measured fuel concentration; (ii) measured humidity; (iii) cell voltages of fuel cells in the stack; (iv) impedance of fuel cells in the stack; (v) resistance of fuel cells in the stack. The variable orifice flow control device may be coupled to a recirculation conduit and may be configured to dynamically vary a proportion of fluid from the fuel delivery outlet passing into the bleed conduit as a function of the control parameters.
摘要翻译：电化学燃料电池组件包括具有燃料输送入口和燃料输送出口的燃料电池堆。燃料电池堆还包括多个燃料电池，每个燃料电池具有膜 - 电极组件和耦合在燃料输送入口和燃料输送出口之间的流体流动路径，用于将燃料输送到膜 - 电极组件。燃料输送管道联接到燃料输送入口以将流体燃料输送到堆叠。排放导管联接到燃料输送出口，用于将流体排出堆叠。耦合到排放导管的可变孔流量控制装置，其被配置为根据一个或多个控制参数来动态地改变来自通过排放导管的燃料输送出口的流体的量;（i）测量的燃料浓度; （ii）测得的湿度; （iii）堆叠中的燃料电池的电池电压; （iv）堆叠中的燃料电池的阻抗; （v）堆叠中燃料电池的电阻。可变孔流量控制装置可以联接到再循环管道，并且可以被配置为根据控制参数动态地改变来自通过排放导管的燃料输送出口的流体的比例。

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