化工学报2023，Vol.74Issue(11)：4548-4558,11.DOI:10.11949/0438-1157.20230970
结构参数对烧结微通道流动沸腾性能的影响
Effect of structural parameters on flow boiling performance of sintered microchannels
徐健 1张东辉 1黄俊 1冯磊 1杨丰源 1高祥1
作者信息
- 1. 江苏科技大学能源与动力学院,江苏 镇江 212003
- 折叠
摘要
Abstract
The application of microchannel boiling cooling for electronic devices has attracted much attention in recent years.An experimental study of the flow boiling in sintered microchannels was carried out,focusing on the effects of channel width on the flow boiling performance.Sintered microchannels were sintered by 150 μm dendritic copper powder by the pressurized sintering.Three types of parallel microchannels with channel widths of 1.8 mm,0.6 mm,and 0.2 mm were prepared,corresponding to channel number,11,22,and 33,respectively.It was found that there exists the optimal channel width for the sintered microchannel,which could achieve the maximum heat transfer coefficient of 200 kW/(m2·K),and the largest critical heat flux of about 170 W/cm2 at a flow rate of 4 L/h.Visual research found that the channel width has a great impact on the pressure pulsation curve.A moderate channel width pressure pulsation curve is more orderly,which greatly alleviates the pressure pulsation and thereby improves the boiling heat transfer performance of the microchannel.关键词
烧结/蒸发/微通道/过冷流动沸腾/气液两相流Key words
sintering/evaporation/microchannels/subcooled flow boiling/gas-liquid flow分类
能源科技引用本文复制引用
徐健,张东辉,黄俊,冯磊,杨丰源,高祥..结构参数对烧结微通道流动沸腾性能的影响[J].化工学报,2023,74(11):4548-4558,11.
