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首页> 外文会议>11th fuel cell science, engineering, and technology conference 2013 >DEVELOPMENT AND VALIDATION OF A DYNAMIC THERMAL MODEL FOR A POLYMER ELECTROLYTE MEMBRANE FUEL CELL
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DEVELOPMENT AND VALIDATION OF A DYNAMIC THERMAL MODEL FOR A POLYMER ELECTROLYTE MEMBRANE FUEL CELL

机译：高分子电解质膜燃料电池热力学模型的建立与验证

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摘要

The development and validation of a control-oriented dynamic thermal model for a polymer electrolyte membrane (PEM) fuel cell stack is presented. This model is based on the first law of thermodynamics within four defined control volumes in the fuel cell; the cathode channel, anode channel, coolant channel, and fuel cell stack body. Energy and mass conservation equations are developed for each control volume. Transient dynamics captured by this model include the electrochemical reaction, heat transfer and mass transport. Activation, ohmic, and concentration voltage losses are also modeled to improve the accuracy of the voltage model response. This allows the stack voltage and cell temperature to be modeled based on the inlet temperature, pressure, and species flow rate and the relative humidity level setting. An experiment was conducted to give a baseline with which to tune the model. Tuning of the model parameters was performed and validation of these adjustments was then conducted through comparison to another experiment. The model predicts the dynamic thermal and electrical response of the fuel cell system with a good degree of accuracy in both cases.
机译：提出并验证了面向控制的聚合物电解质膜（PEM）燃料电池堆动态热模型。该模型基于燃料电池中四个定义的控制体积内的热力学第一定律；阴极通道，阳极通道，冷却剂通道和燃料电池堆体。为每个控制量建立了能量和质量守恒方程。该模型捕获的瞬态动力学包括电化学反应，热传递和质量传递。还对激活，欧姆和集中电压损耗进行了建模，以提高电压模型响应的准确性。这样就可以根据入口温度，压力和物质流速以及相对湿度水平设置对电池组电压和电池温度进行建模。进行了实验以提供用于调整模型的基线。进行模型参数的调整，然后通过与另一个实验进行比较来验证这些调整。在两种情况下，该模型均能以很高的准确度预测燃料电池系统的动态热和电响应。

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