一种铜基逆流连通微通道的沸腾实验研究
Boiling Experimental Study on a Copper-Based Countercurrent Connected Microchannel
王东玉 1洪芳军 1张朝阳2
作者信息
- 1. 上海交通大学机械与动力工程学院工程热物理研究所,上海 200240
- 2. 上海交通大学巴黎卓越工程师学院,上海 200240
- 折叠
摘要
两相微通道热沉具有极高的传热性能,是解决小空间、高功率电子器件高热流散热问题的有效解决方案之一.本文设计验证了一种铜基逆流连通微通道,通过建立泵流体两相流体回路系统进行验证两相微通道热沉的和换热均温性能,考察不同流量、过冷度下的影响规律.实验发现逆流连通微通道在传热性能上的优异表现是主要是因为其能促进相邻通道不同干度流体的掺混,提高流量会提高均温性,而提高过冷度会导致热沉的均温性变差.
Abstract
Two-phase microchannel heat sink is one of the most effective solutions to solve the problem of heat dissipation in small space and high-power electronic devices because of its high heat transfer performance.In this paper,a countercurrent connected microchannel based on copper was proposed.The heat sink and heat transfer equalization performance of the microchannel was verified by establishing a two-phase fluid loop system for pumping fluid,and the influence rule under different flows and degrees of undercooling was investigated.It is found that the excellent performance of countercurrent connected microchannel in heat transfer performance is mainly because it can promote the mixing of different dryness fluids in adjacent channels.Increasing the flow rate will improve the temperature homogenization,while increasing the supercooling degree will lead to the deterioration of heat sink temperature homogenization.
关键词
微通道/连通沟槽/流动沸腾/均温性Key words
microchannel/connected groove/flow boiling/temperature homogeneity引用本文复制引用
出版年
2024
NETL
NSTL
万方数据