多级针-网式离子风散热系统性能

doi:10.11949/0438-1157.20200486

摘要/Abstract

摘要：

为探究多级针-网式离子风散热系统的性能和针对多级离子风散热装置进行优化设计，提出一种多级针-网式离子风散热系统装置，研究多级级数、级间隙、放电电压对离子风最大风速和发热片的散热温降的影响。结果表明，在相同电压时，多级比单级散热性能更好，能把11 W的发热片降低到更低的温度，并获得更大的离子风最大风速。多级装置离子风最大风速可达2.6 m/s，能把11 W的发热片温度降到90℃左右，温降可达105℃左右，而单级只能降到110℃，温降约85℃。

关键词: 传热, 优化, 实验验证, 离子风, 风速, 多级

Abstract:

In order to explore the performance of the multistage pin-mesh ionic wind cooling system and optimize the design for the multistage ionic wind heat dissipation device, a multistage pin-mesh ionic wind cooling system device was proposed to study the effect of multistage number, stage clearance, and discharge voltage on the maximum wind velocity of the ionic wind and the heat dissipation temperature drop of the heating plate. The results show that at the same voltage, the multistage heat dissipation performance is better than the single-stage, which can reduce the 11 W heating plate to a lower temperature and obtain a larger maximum wind velocity of the ionic wind. When the maximum wind velocity of the ionic wind reaches the maximum value, it does not mean that the heat dissipation performance is the best, because the optimal heat dissipation performance can be achieved when the average wind velocity reaches the maximum value. The multistage device using the pin-mesh integrated structure has a maximum wind velocity of 2.6 m/s, which can reduce the temperature of the 11 W heating plate to about 90℃ and the temperature drop to about 105℃, while the single-stage can only drop to 110℃ and the temperature drop is about 85℃.

Key words: heat transfer, optimization, experimental verification, corona wind, wind velocity, multistage

中图分类号:

TK 124

蔡坚锋, 王长宏, 冯杰. 多级针-网式离子风散热系统性能[J]. 化工学报, 2020, 71(S2): 111-117.

Jianfeng CAI, Changhong WANG, Jie FENG. Performance of multistage pin-mesh ionic wind cooling system[J]. CIESC Journal, 2020, 71(S2): 111-117.

图/表 6

图1 多级针-网式离子风散热装置系统

Fig.1 Multistage pin-mesh ionic wind cooling system

图2 不同级间隙下电压与最大风速的关系

Fig.2 Relationship between voltage and maximum wind speed at different stages of gap

图3 不同级数下电压与最大风速的关系

Fig.3 Relationship between voltage and maximum wind speed under different stages

图4 不同级间隙下电压与温度的关系

Fig.4 Relationship between voltage and temperature at different stages of gap

图5 不同级数下电压与温度的关系

Fig.5 Relationship between voltage and temperature under different stages

图6 级间隙为0时电压与温度和最大风速的关系

Fig.6 Relationship between voltage and temperature and maximum wind speed when gap is 0

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