Three-dimensional multi-phase numerical study for the effect of coolant flow field designs on water and thermal management for the large-scale PEMFCs

冷却液 体积流量 机械 材料科学 质子交换膜燃料电池 流量(数学) 体积热力学 核工程 热力学 化学 物理 工程类 生物化学 催化作用
作者
Xuanyu Liu,Minli Bai,Zhifu Zhou,Poowanart Poramapojana,Yang Li,Linsong Gao,Yubai Li,Yongchen Song
出处
期刊:International Journal of Hydrogen Energy [Elsevier BV]
卷期号:48 (61): 23681-23705 被引量:15
标识
DOI:10.1016/j.ijhydene.2023.03.134
摘要

The multi-phase numerical study is performed for the large-scale proton exchange membrane fuel cells (PEMFCs) regarding coolant flow field design. In this study, three coolant flow fields were designed to explore the effect of different temperature distributions on the water management of the PEMFCs. The numerical results show that increasing the temperature gradient along the gas flow direction and improving the temperature uniformity perpendicular to the gas flow direction enhances PEMFC performance and makes the liquid water distribution in the gas diffusion layers more reasonable. The co-flow for the cathode gas stream and the coolant flow is beneficial to raise the temperature along the cathode gas flow direction and reduce the risk of flooding near the cathode outlet. Then, it is noted that the coolant flow field design is not necessary to keep the temperature absolutely uniform for the PEMFCs. Although increasing the coolant volume flow rate will reduce the IUT, it dramatically increases the risk of flooding near the cathode outlet. Therefore, the moderate volume flow rate is preferred. Finally, the effect of the coolant manifold on the volume flow rate uniformity in the coolant channels is investigated, and it is found that reducing the number of coolant channels is the best strategy to improve volume flow rate uniformity and thermal management performance.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Iolite完成签到,获得积分10
刚刚
小马甲应助Shuaibin_Pei采纳,获得10
刚刚
量子星尘发布了新的文献求助10
刚刚
hbhbj完成签到,获得积分10
1秒前
raolixiang完成签到,获得积分10
1秒前
3秒前
打工人不酷完成签到 ,获得积分10
4秒前
5秒前
7秒前
背后丹妗发布了新的文献求助10
7秒前
8秒前
8秒前
小凯同学完成签到 ,获得积分10
8秒前
hanleiharry1发布了新的文献求助10
10秒前
10秒前
10秒前
善良冷松发布了新的文献求助10
10秒前
12秒前
在水一方应助一定行采纳,获得10
13秒前
13秒前
13秒前
NexusExplorer应助快乐一江采纳,获得10
14秒前
14秒前
科研通AI5应助Lcccccc采纳,获得10
14秒前
在水一方应助杰2580采纳,获得10
17秒前
幸福大白发布了新的文献求助30
17秒前
Jasmine发布了新的文献求助10
17秒前
18秒前
善良冷松完成签到,获得积分10
18秒前
18秒前
善学以致用应助fengliurencai采纳,获得10
19秒前
个别完成签到,获得积分10
20秒前
20秒前
20秒前
21秒前
sihanzhiyu完成签到,获得积分20
22秒前
22秒前
wdy111应助ASZXDW采纳,获得20
24秒前
24秒前
wsj发布了新的文献求助10
24秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989390
求助须知:如何正确求助?哪些是违规求助? 3531487
关于积分的说明 11254109
捐赠科研通 3270153
什么是DOI,文献DOI怎么找? 1804887
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809174