...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Metal foam heat exchangers for thermal management of fuel cell systems - An experimental study
【24h】

Metal foam heat exchangers for thermal management of fuel cell systems - An experimental study

机译：用于燃料电池系统热管理的金属泡沫热交换器-实验研究

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

The present study explores the possibility of using metal foams for thermal management of fuel cells so that air-cooled fuel cell stacks can be commercialized as replacements for currently-available water-cooled counterparts. Experimental studies have been conducted to examine the heat transfer enhancement from a thin metal foam layer sandwiched between two bipolar plates of a cell. To do this, effects of the key parameters including the free stream velocity and characteristics of metal foam such as porosity, permeability, and form drag coefficient on temperature distribution, heat and fluid flow are investigated. The improvements as a result of the application of metal foam layers on fuel cell systems efficiency have been analyzed and discussed. Empirical results were in an agreement with previous numerical studies and have shown that to remove the same amount of generated heat, the air-cooled fuel cell systems using aluminum foams require half of the pumping power compared to water-cooled fuel cell systems. The critical coolant temperature difference for Proton Exchange Membrane (PEM) fuel cell systems was considered in which the applied foam layer created a uniform temperature distribution across the graphite plates.
机译：本研究探讨了使用金属泡沫对燃料电池进行热管理的可能性，以便将气冷式燃料电池堆商业化，以替代目前可用的水冷式燃料电池堆。已经进行了实验研究以检查来自夹在电池的两个双极板之间的薄金属泡沫层的传热增强。为此，研究了关键参数（包括自由流速度和金属泡沫的特性，如孔隙率，渗透性和成形阻力系数）对温度分布，热和流体流动的影响。分析和讨论了由于金属泡沫层在燃料电池系统效率上的应用而带来的改进。实验结果与先前的数值研究一致，并且表明，为了去除相同量的热量，与水冷式燃料电池系统相比，使用泡沫铝的空冷式燃料电池系统仅需要一半的泵送功率。考虑了质子交换膜（PEM）燃料电池系统的临界冷却剂温差，其中所施加的泡沫层在整个石墨板上产生了均匀的温度分布。

著录项

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