Two-Phase Flow in Porous Electrodes of Proton Exchange Membrane Fuel Cell

作     者：Daokuan Jiao Kui Jiao Qing Du Daokuan Jiao;Kui Jiao;Qing Du

作者机构：State Key Laboratory of EnginesTianjin University135 Yaguan RoadTianjin 300350China 

出 版 物：《Transactions of Tianjin University》 (天津大学学报（英文版）)

年 卷 期：2020年第26卷第3期

页      面：197-207页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China(No.51676135) the National Key Research and Development Program of China(No.2018YFB0105505) 

主　　题：PEMFC Porous electrodes Two-phase flow Water management 

摘      要：Water management in porous electrodes bears significance due to its strong potential in determining the performance of proton exchange membrane fuel *** terms of porous electrodes,internal water distribution and removal process have extensively attracted attention in both experimental and numerical ***,the structural difference among the catalyst layer(CL),microporous layer(MPL),and gas diffusion layer(GDL)leads to significant challenges in studying the two-phase flow *** the different porosities and pore scales of the CL,MPL,and GDL,the model scales in simulating each component are *** review emphasizes the numerical simulation related to porous electrodes in the water transport process and evaluates the effectiveness and weakness of the conventional methods used during the *** limitations of existing models include the following:(i)The reconstruction of geometric models is difficult to achieve when using the real characteristics of the components;(ii)the computational domain size is limited due to massive computational loads in three-dimensional(3 D)simulations;(iii)numerical associations among 3 D models are lacking because of the separate studies for each component;(iv)the effects of vapor condensation and heat transfer on the two-phase flow are disregarded;(v)compressive deformation during assembly and vibration in road conditions should be considered in two-phase flow studies given the real operating ***,this review is aimed at critical research gaps which need further *** potential research directions are also suggested for future improvements.