THERMAL ANALYSIS OF HEAT TRANSFER ENHANCEMENT OF RIB HEAT SINK FOR CPU

被引：5
|
作者：
Zhao, Ming [1 ]
Tian, Yang [1 ]
机构：
[1] Univ Shanghai Sci & Technol, Coll Energy & Power Engn, Shanghai 200093, Peoples R China
来源：
FRONTIERS IN HEAT AND MASS TRANSFER | 2019年 / 13卷
基金：
中国国家自然科学基金;
关键词：
Thermal resistance analysis; numerical simulation; field synergy; NATURAL-CONVECTION; OPTIMIZATION; DESIGN; PLATE;
D O I：
10.5098/hmt.13.4
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The field synergy principle and thermal resistance analysis were carried out for the heat transfer enhancement of a chip heat sink. Thermal analysis of the heat dissipation capacity is applied for setting up the gallery on the rib, changing the fan ventilation diameter, and changing the rib height. The results show that the analysis of field synergy principle agrees well with that of the thermal analysis, and setting up a gallery on the rib can improve the heat capacity of the heat sink. Meanwhile, the results also show that decreasing diameter of the ventilation causes heat capacity dropping because the reverse flow area increases and the air flow rate reduces. Furthermore, the rib height plays an important role in the flow path geometry, and it has a significant effect on the convective heat transfer coefficient.
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页数：10
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