Thermal performance of mini-channel liquid cooled cylinder based battery thermal management for cylindrical lithium-ion power battery
Thermal performance of mini-channel liquid cooled cylinder based battery thermal management for cylindrical lithium-ion power battery
复制标题
基于微通道液冷圆柱电池热管理的圆柱锂离子动力电池热性能
DOI：
10.1016/j.enconman.2015.06.056
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发表时间：
2015-10
影响因子：
10.4
通讯作者：
Li Yimin
中科院分区：
文献类型：
--
作者：
Zhao Jiateng;Rao Zhonghao;Li Yimin
由于电池热管理对电动汽车的重要性，近年来电池热管理成为一个非常活跃的研究热点。为了使圆柱形蓄电池的最高温度和局部温差保持在合适的范围内，提出了一种基于微通道液体冷却圆柱体的圆柱形蓄电池冷却方法。通过数值模拟研究了通道数量、质量流量、流动方向和入口尺寸对散热性能的影响。结果表明，当微通道数不少于4个，入口质量流量为1 × 10− 3 kg/s时，42,110圆柱形电池的最高温度可控制在40 °C以下。从最高温度和局部温差两方面综合考虑，只有当通道数大于8时，液冷筒冷却方式才比自然对流冷却方式更具优势。通过增加质量流率降低最高温度的能力是有限的。在入口质量流量一定的情况下，随着入口尺寸的增大，散热能力沿着增大，然后减弱。
Battery thermal management is a very active research focus in recent years because of its great essentiality for electric vehicles. In order to maintain the maximum temperature and local temperature difference in appropriate range, a new kind of cooling method for cylindrical batteries which is based on mini-channel liquid cooled cylinder is proposed in this paper. The effects of channel quantity, mass flow rate, flow direction and entrance size on the heat dissipation performance were investigated numerically. The results showed that the maximum temperature can be controlled under 40 °C for 42,110 cylindrical batteries when the number of mini-channel is no less than four and the inlet mass flow rate is 1 × 10−3kg/s. Considering both the maximum temperature and local temperature difference, the cooling style by liquid cooled cylinder can demonstrate advantages compared to natural convection cooling only when the channel number is larger than eight. The capability of reducing the maximum temperature is limited through increasing the mass flow rate. The capacity of heat dissipation is enhanced first and then weakened along with the rising of entrance size, when the inlet mass flow rate is constant.
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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