摘要
为提升IGBT模块散热性能,在常规冷却水槽中设置短槽道和限流渐缩孔块。利用STARCCM+建立三维物理模型,对优化前后IGBT模块散热器进行仿真计算,结果表明:优化后IGBT模块热源最高温度由优化前的39.90℃降低至35.96℃,平均温度由优化前的38.49℃降低至35.39℃,降幅分别为9.9%和8.6%,散热性能增强;随着冷却水槽入口质量流率的增大,优化后IGBT模块热源平均温度和最高温度以及冷却水槽压降逐渐增大,冷却水槽入口质量流率设置为0.10kg/s时散热效果更好且散热系统运行更经济。
In order to improve the heat dissipation performance of IGBT module,a short groove and a flow limiting progressive cavity block are added to the conventional cooling tank.The software STAR-CCM+is used to establish a three-dimensional physical model,and the simulation calculation is conducted on IGBT module radiator before and after optimization.The results show that the maximum temperature of heat source of IGBT module decreases from 39.90℃ to 35.96℃,and the average temperature decreases from 38.49℃ to 35.39℃,with a decrease of 9.9%and 8.6%,and the heat dissipation performance is enhanced.With the increase of inlet mass flow rate of cooling water tank,the average temperature,maximum temperature and pressure drop of cooling water tank of IGBT module heat source increase gradually.Therefore,the inlet mass flow rate of cooling water tank should be set at 0.10 kg/s for better heat dissipation effect and more economical operation of the heat dissipation system.
作者
武辉
张克鹏
原亚东
Wu Hui;Zhang Kepeng;Yuan Yadong(Zhejiang DunAn Environment Co.,Ltd.;College of Energy Engineering,Zhejiang University)
出处
《制冷与空调》
2024年第2期11-14,共4页
Refrigeration and Air-Conditioning
关键词
散热器
热源温度
质量流率
压降
radiator
heat source temperature
mass flow rate:pressure drop
