Characteristics of heat and water transfer through a porous plate

被引：5
|
作者：
Wang, Shixue [1 ]
Yue, Like [1 ]
Wang, Fei [1 ]
机构：
[1] Tianjin Univ, MOE Key Lab Efficient Utilizat Low & Medium Grade, Tianjin 300350, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2018年 / 119卷
关键词：
Fuel cell; Self-humidifying; Porous plate; Heat and water transfer; Water recovery; POLYMER ELECTROLYTE MEMBRANE; PROTON-EXCHANGE MEMBRANE; MULTIPHASE MIXTURE MODEL; LIQUID-GAS FLOW; PEM FUEL-CELLS; MULTICOMPONENT TRANSPORT; PHASE-CHANGE; MEDIA; HUMIDIFICATION; CHANNEL;
D O I：
10.1016/j.ijheatmasstransfer.2017.11.082
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this study, an experimental measurement system was established to examine the heat and water transfer process for a porous plate in the self-humidifying system of a fuel cell. The physical parameters of the fluid flow and porous plates were evaluated for their effects on the heat and water transfer characteristics of the porous plates. The results showed that using a countercurrent flow and increasing the inlet temperature and relative humidity of the humidifying gas can improve the heat transfer and water transmission on both sides of the porous plates. Meanwhile, using a countercurrent flow, increasing the inlet temperature of the humidifying gas, and decreasing the relative humidity can improve the water recovery rate. In addition, increasing the porosity of the porous medium can promote water transfer. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：295 / 302
页数：8
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