摘要
针对混合动力车用锂电池运行过程中的升温对混合动力车使用性能及安全性的影响,对相变材料-空气耦合散热结构进行设计及性能分析。建立了电池组及散热系统三维模型,并应用Fluent软件对散热结构的不同方案进行了数值模拟。通过对模拟结果进行分析,发现直接传热散热方案的温度控制效果更佳,且可通过增大翅片间距来简化结构。结果表明该结构可达到以较简单的结构、较低的能耗将电池组温度控制在合理范围的目的。
To overcome the effect of temperature rise on performance and security of HEV （hybrid electric vehicle） Li-ion battery, a phase change material-air coupled heat dissipation structure of battery pack was designed and studied. A 3D model of battery pack and heat dissipation structure was built, was simulated by the CFD software Fluent. According to the numerical analysis, the direct heat transfer scheme performs better and could be simplified by reducing the fin space without obvious temperature rise. These simulation results demonstrate the phase change material-air coupled heat dissipation structure successfully and efficiently meet the temperature control requirements without complicated components.
出处
《电源技术》
CAS
CSCD
北大核心
2013年第10期1751-1754,共4页
Chinese Journal of Power Sources
基金
湖南省新型工业化专项(2012gk4009)
江苏省动力机械清洁能源与应用重点实验室开放基金课题(Q K 09003)
关键词
混合动力电动汽车
锂电池
相变材料
空气冷却
CFD仿真
hybrid electric vehicle
Li-ion battery
phase change material
air cooling
CFD simulation
