迷惑
质子交换膜燃料电池
倾斜(摄像机)
锥面
材料科学
机械
膜
功率密度
流量(数学)
流利
功率(物理)
复合材料
化学
计算机模拟
机械工程
结构工程
热力学
物理
工程类
生物化学
作者
Tiancai Cheng,Qiang Liu,Guang‐Jun Jiang,Qi Zhao,Dongming Mu
出处
期刊:Fuel Cells
[Wiley]
日期:2024-02-01
卷期号:24 (1): 32-48
标识
DOI:10.1002/fuce.202300136
摘要
Abstract The performance and durability of proton‐exchange membrane fuel cells (PEMFCs) are constrained by fuel delivery and water management. Based on parallel and serpentine flow fields, the effects of triangular baffles (30°, 45°, and 60°) and conical runners (1°, 2°, and 3°) on the performance output of PEMFC at different angles are studied. The three‐dimensional and multi‐phase models are established by using the simulation software package (ANSYS FLUENT). The findings demonstrate that the battery's output performance reaches its peak when the baffle angle is set at 45°. When the output current density is 0.7 A/cm 2 , the power density of the 45° baffle increases by 18.87%. The pressure loss is not only lower than that of the 60° baffle but also exhibits no significant difference when compared to the 30° baffle. In addition, the introduction of conical channels has enhanced the output performance of PEMFCs in comparison to the traditional serpentine flow field. The power density of the 2°tapered channel exhibits a 12.65% increase when the output current density reaches 0.8 A/cm 2 . However, the performance output of the 3°tapered channel is inferior to that of the conventional serpentine flow field.
科研通智能强力驱动
Strongly Powered by AbleSci AI