流动电池
钒
流量(数学)
氧化还原
电池(电)
频道(广播)
机械
计算机科学
材料科学
工程类
电气工程
物理
冶金
热力学
功率(物理)
作者
Jiahui Wang,Zebo Huang,Bin Yang,Yupeng Wang,Wuyang Wang
摘要
This paper numerically investigates trapezoidal flow channel designs to optimize all-vanadium redox flow battery performance. A 3D steady-state multiphysics model coupling fluid dynamics, mass transfer, and electrochemistry was developed in COMSOL. Eight trapezoidal and one rectangular cross-section serpentine flow fields were simulated at varied flow rates. Results showed the TCS-T06 design reduced pressure drop by12% and pump power by 12% versus the RCS. The concentration distribution of VO2+was also improved, enhancing mass transfer. At 60 mA/cm^2, TCS-T06 achieved 0.9% higher pump power-based voltage efficiency. The optimized trapezoidal cross-section was proven to minimize losses, improve electrolyte distribution, and enhance VRFB performance. This provides useful guidance on flow field design optimization for efficient redox flow batteries.
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