检索结果-南通市图书馆

cfd analysis of Spiral Flow Fields in Proton Exchange Membrane Fuel Cells

Fluid Dynamics & Materials Processing 2023年第6期19卷 1425-1445页

作者： Jian Yao Fayi Yan Xuejian Pei College of Mechanical and Electrical Engineering Shandong Jianzhu UniversityJinan250101China

Proton exchange membrane fuel cells(PEMFCs)are largely used in various applications because of their pollution-free products and high energy conversion efficiency.In order to improve the related design,in the present work a new spiral flow field with a bypass is proposed.The reaction gas enters the flow field in the central path and diffuses in two directions through the flow channel and the bypass.The bypasses are arranged incrementally.The number of bypasses and the cross-section size of the bypasses are varied parametrically while a single-cell model of the PEMFC is used.The influence of the concentration of liquid water and oxygen in the cell on the performance of different flow fields is determined by means of Computational fluid dynamics(COMSOL Multiphysics software).Results show that when the bypass number is 48 and its cross-sectional area is 0.5 mm^(2),the cell exhibits the best performances.

关键词： Proton exchange membrane fuel cells(PEMFCs) new spiral flow field square plate cfd simulation analysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Air Flow-resistance analysis of Cooling Module Based on cfd Method

Air Flow-resistance Analysis of Cooling Module Based on CFD ...

引用

2018中国汽车工程学会年会

作者： ZHANG Yao LIU Bin LIU Bo YOU Hongtao ZHAO Yan Dongfeng Motor Corporation Technical Center

To explore the relationship between the supply air rate and the resistance of the cooling module itself,this paper provides a simulation method for cooling front module andsingle cooler supply air rate and wind resistance.Using the matching method,the monomer with the same characteristic structure is simplified to porous medium,and its characteristic parameters are obtained,the cfd is used to simulate the problem,and the accuracy is verified by the test;and the wind speed-resistance characteristics are simulated by the super position of multiple monomers,and the results are verified.This method can accurately predict the wind resistance of the cooling system during the design stage,and provide a basis for the selection of the scheme.

关键词： cooling system radiator cfd simulation analysis wind resistance curve

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：