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Systemic modeling and analysis of DMFC stack for behavior prediction in system-level application

机译：DMFC堆栈的系统建模和分析，用于系统级应用程序中的行为预测

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摘要

In this paper, a systemic model based on the equivalent circuit modeling method is developed in order to analyze the electrical behavior of direct methanol fuel cell (DMFC) stack in complex systems. The systemic model consists of the polarization curve subsystem, the long time discharge subsystem, and the temperature distribution of catalyst layer subsystem. The effect of various operating parameters on the behavior of the DMFC stack is evaluated by the systemic model. In addition, the systemic model is applied to design a DMFC stack with 4 single DMFCs connected in series. The simulated current-power profiles and time-power profiles are validated by the experimental results of the designed DMFC stack. Numerical results such as the effect of assembly pressure and the temperature distribution of catalyst layer are also discussed. Based on the numerical results, the most appropriate assembly pressure for the DMFC stack is 1.5 MPa. The total energy released at the current of 400 mA is the maximum according to both the simulated and experimental results. This systemic model provides a meaningful method to design DMFC stacks in the view of the system-level. (C) 2016 Elsevier Ltd. All rights reserved.
机译：本文建立了一种基于等效电路建模方法的系统模型，以分析复杂系统中直接甲醇燃料电池（DMFC）堆的电性能。系统模型由极化曲线子系统，长时间放电子系统和催化剂层子系统的温度分布组成。系统模型评估了各种操作参数对DMFC堆栈行为的影响。此外，系统模型被用于设计具有4个串联的单个DMFC的DMFC堆栈。设计的DMFC堆栈的实验结果验证了仿真的电流-功率曲线和时间-功率曲线。还讨论了组装压力和催化剂层温度分布等数值结果。根据数值结果，DMFC堆最合适的组装压力为1.5 MPa。根据模拟和实验结果，在400 mA电流下释放的总能量最大。这个系统模型为系统级的视图提供了一种设计DMFC堆栈的有意义的方法。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Energy》 |2016年第1期|1015-1023|共9页
  • 作者

    Fang Shuo; Zhang Yufeng; Ma Zezhong; Sang Shengtian; Liu Xiaowei;

  • 作者单位

    Harbin Inst Technol, MEMS Ctr, Harbin 150001, Peoples R China;

    Harbin Inst Technol, MEMS Ctr, Harbin 150001, Peoples R China|Minist Educ, Key Lab Microsyst & Microstruct Mfg, Harbin 150001, Peoples R China;

    Harbin Inst Technol, MEMS Ctr, Harbin 150001, Peoples R China;

    Harbin Inst Technol, MEMS Ctr, Harbin 150001, Peoples R China;

    Harbin Inst Technol, MEMS Ctr, Harbin 150001, Peoples R China|Minist Educ, Key Lab Microsyst & Microstruct Mfg, Harbin 150001, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Direct methanol fuel cell stack model; System-level analysis; Electrical behavior study;

    机译：直接甲醇燃料电池堆模型;系统级分析;电性能研究;

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