• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >A novel, net-shape polymer electrolyte fuel cell: Higher power density, smaller stack size and less bipolar plate required
【24h】

A novel, net-shape polymer electrolyte fuel cell: Higher power density, smaller stack size and less bipolar plate required

机译：新型的净形聚合物电解质燃料电池：更高的功率密度，更小的堆叠尺寸和更少的双极板

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cost, power density and durability are still major challenges to the large-scale commercialization of polymer electrolyte membrane fuel cells (PEMFCs). Most of these issues could be addressed by changing the conventional architecture of PEMFCs. The present work introduces a novel, net-shape flat architecture with unique capabilities. This netlike design increases the active area dramatically by bringing each channel in contact with three different electrodes. These capabilities are further investigated through a well-validated three-dimensional non-isothermal model in ANSYS Fluent. Comparing the polarization curves shows that, per unit active area, the net-style design has a performance significantly better than that of conventional (classical) PEMFCs. In addition, it shows more uniform distribution of oxygen, water, current and temperature. Moreover, it provides remarkably higher current and power densities. Owing to its netlike shape, the proposed multi-channel PEMFC is also considerably smaller and requires less bipolar plates per unit active area. As a result, the state-of-the-art design introduced in this work can enhance the performance of PEMFCs remarkably while reducing their size and the bipolar plate cost. The net-type stack can therefore be considered one of the promising designs for the next generation of PEMFCs.
机译：成本，功率密度和耐久性仍然是聚合物电解质膜燃料电池（PEMFC）的大规模商业化的主要挑战。这些问题中的大多数可以通过更改PEMFC的常规体系结构来解决。本工作介绍了一种具有独特功能的新颖的网状平面架构。这种网状设计通过使每个通道与三个不同的电极接触，显着增加了有效面积。通过ANSYS Fluent中经过充分验证的三维非等温模型，进一步研究了这些功能。比较极化曲线表明，在单位有效面积上，网状设计的性能明显优于传统（经典）PEMFC。此外，它显示出更均匀的氧气，水，电流和温度分布。此外，它提供了更高的电流和功率密度。由于其网状形状，所提出的多通道PEMFC也相当小，并且每单位有效面积需要更少的双极板。结果，这项工作中引入的最新设计可以显着提高PEMFC的性能，同时减小其尺寸和降低双极板的成本。因此，可以将网型堆栈视为下一代PEMFC的有前途的设计之一。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2018年第2期|1099-1106|共8页
  • 作者

    Hamidreza Sadeghifar; Ashkan Torkavannejad; Nader Pourmahmoud;

  • 作者单位

    Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall Vancouver, BC V6T 1Z3, Canada,Laboratory for Alternative Energy Conversion (LAEC), School of Mechatronic Systems Engineering, Simon Fraser University, Surrey V3T 0A3, BC, Canada,Institute for Integrated Energy Systems (IESVic) and Energy Systems and Transport Phenomena Lab (ESTP), University of Victoria, Victoria V8W 3P6, BC, Canada,Vancouver International CleanTech Research Institute Inc., 4475 Waybume Dr. Suite 310, Bumaby, BC V5G 4X4, Canada;

    Department of Mechanical Engineering, Urmia University, Urmia 57561-75311, Iran;

    Department of Mechanical Engineering, Urmia University, Urmia 57561-75311, Iran;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polymer electrolyte membrane fuel cell; Netlike fuel cell; Stack size; Bipolar plate cost; Performance; Three-dimensional non-isothermal; simulation;

    机译：高分子电解质膜燃料电池;网状燃料电池;堆栈大小;双极板成本;性能;三维非等温;模拟;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号