首页> 外文期刊>International journal of green energy >MICRO HUMIDITY SENSOR FOR MONITORING WATER FLOODING IN A PROTON EXCHANGE MEMBRANE FUEL CELL
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MICRO HUMIDITY SENSOR FOR MONITORING WATER FLOODING IN A PROTON EXCHANGE MEMBRANE FUEL CELL

机译:微型湿度传感器,用于监测质子交换膜燃料电池中的水流

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摘要

The operating conditions (relative humidity) of a fuel cell are not ideal, and directly influence performance. A high relative humidity of fuel facilitates flooding with water downstream in the fuel cell, worsening its performance. In this study, a flexible micro humidity sensor is fabricated on a stainless steel foil using micro-electro-mechanical systems (MEMS). It has the advantages of high temperature resistance, small size, high sensitivity, and precision of measurement position. Flexible micro humidity sensors a,re embedded in a proton exchange membrane fuel cell (PEMFC). Experimental results obtained at a high current density and relative humidities of 100% and 75% demonstrate that the relative humidity midstream and downstream saturated, because of serious flooding by water.
机译:燃料电池的工作条件(相对湿度)不理想,并且直接影响性能。较高的燃料相对湿度会促进向燃料电池下游注水,从而降低其性能。在这项研究中,使用微机电系统(MEMS)在不锈钢箔上制造了柔性微湿度传感器。具有耐高温,体积小,灵敏度高,测量位置精度高的优点。柔性微湿度传感器可嵌入质子交换膜燃料电池(PEMFC)中。在高电流密度和100%和75%的相对湿度下获得的实验结果表明,由于水泛滥,上游和下游的相对湿度达到了饱和。

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