蓄电池柜散热气流均匀分配方案优化仿真

发布时间：2018-04-05 14:00

本文选题：蓄电池柜　切入点：气流分布　出处：《计算机仿真》2017年10期

【摘要】：蓄电池柜内气流分布对电池组散热效率和散热均衡性有重要影响。蓄电池柜气流分配易形成低速涡旋,电池组表面流速分布不均匀,气流组织难以控制等问题,提出三种气流组织优化方案,基于计算流体力学(CFD)建立蓄电池柜气流分配区域气流组织模型,采用标准k-ε湍流模型对蓄电池柜气流分配腔进行数值仿真,获得腔体内气流组织的速度场和出口流速的分布规律,并与原始气流组织方案的实验结果对比,计算气流分配腔出口风速的不均匀系数。结果表明,使用控制方案后分配腔内气流分布更加均匀,出口气流速度分布更加合理,增加导流板能够降低速度场的不均匀系数,但同时会增大气流动能损失。
[Abstract]:The airflow distribution in battery tank has an important effect on heat dissipation efficiency and heat balance of battery pack.It is easy to form low speed vortex in the air distribution of battery tank, the surface velocity distribution of battery pack is not uniform, and the airflow distribution is difficult to control. Three optimization schemes of airflow organization are put forward.Based on computational fluid dynamics (CFD), the airflow distribution model of storage battery tank was established, and the standard k- 蔚 turbulence model was used to simulate the airflow distribution chamber of storage battery tank.The distribution law of velocity field and outlet velocity of airflow in the cavity is obtained, and compared with the experimental results of the original airflow organization scheme, the non-uniform coefficient of the wind velocity at the outlet of the airflow distribution cavity is calculated.The results show that the airflow distribution in the distribution cavity is more uniform and the velocity distribution at the outlet is more reasonable after the control scheme is used. Increasing the baffle can reduce the inhomogeneous coefficient of the velocity field, but increase the loss of gas kinetic energy at the same time.
【作者单位】：河南科技大学制冷与空调技术研究所;
【基金】：国家自然科学基金(U1304521) 河南省高校科技创新人才支持计划(16HASTIT027) 河南科技大学创新团队资助(2015XTD004)
【分类号】：TM912

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