锂离子电池拓扑流道液冷板热流性能研究
Research on thermal characterization of liquid cooling plate topology for lithium-ion batteries
汪星星 1高全杰 1梁刚2
作者信息
- 1. 武汉科技大学机械自动化学院,湖北 武汉 430081
- 2. 景德镇学院机械电子工程学院,江西景德镇 333400
- 折叠
摘要
为增强常规液冷板的冷却能力,利用变密度拓扑优化方法设计了对中和对角 2 种进出口位置不同的新型拓扑流道液冷板.通过全局偏微分方程使各液冷板的泵功一致,探究冷却液体积分数与入口温度对散热性能的影响.仿真结果表明,提高冷却液体积分数可以增强液冷板散热能力,而入口温度对电池体温差影响微弱;对角拓扑型液冷板的冷却性能较蛇型液冷板提升最大,当泵功由 1×10-4 W增加至 5×10-4 W时,电池体温差最高下降 37.84%,且综合换热指标PEC约为对中拓扑型较矩型液冷板的 3 倍.
Abstract
In order to enhance the cooling capacity of the conventional liquid-cooled plate,a new topological runner liquid-cooled plate with two different inlet and outlet positions,namely,centering and diagonal,was designed by using the variable density topology optimization method.The effect of coolant volume fraction and inlet temperature on thermal performance was explored by global partial differential equations to make the pumping power of each liquid-cooled plate consistent.Simulation results showed that increasing the coolant volume fraction enhanced the liquid-cooled plate heat dissipation capability,while the inlet temperature had a weak effect on the cell body temperature difference;the diagonal topology liquid-cooled panels showed the greatest improvement in cooling performance over the serpentine liquid-cooled panels,with the highest decrease in cell body temperature difference of 37.84%when the pumping power was increased from 1×10-4 W to 5×10-4 W,and the integrated heat transfer index PEC was about three times higher than that of the diagonal topology over the momentary liquid-cooled panels.
关键词
锂电池/拓扑优化/液冷板/泵功/热管理Key words
lithium battery/topology optimization/liquid-cooled plate/pump power/thermal management引用本文复制引用
基金项目
国家自然科学基金(51875419)
湖北省隆中实验室自主创新项目(2022ZZ-14)
江西省教育厅科技研究项目(GJJ202807)
出版年
2024
国家科技期刊平台
NSTL
万方数据