间断布类水滴型肋微通道的流动与传热特性  

Flow and Heat Transfer Characteristics of Microchannels with Interrupted Water Droplet-Shaped Ribs

作　　者：樊凯伦 李树谦 周鹏程 刘琪 苏志鹏 FAN Kailun;LI Shuqian;ZHOU Pengcheng;LIU Qi;SU Zhipeng(Hebei University of Architecture,College of Energy Engineering,Zhangjiakou 075000,Hebei,China;Hebei University of Water Resources and Electric Engineering,College of Civil Engineering,Cangzhou 061001,Hebei,China;Hebei Data Center Phase Change Thermal Management Technology Innovation Center,Cangzhou 061001,Hebei,China;Cangzhou Heat Storage and Low-Grade Waste Heat Utilization Electromagnetic Heating Technology Innovation Center,Cangzhou 061001,Hebei,China)

机构地区：[1]河北建筑工程学院能源工程系,河北张家口075000 [2]河北水利电力学院土木工程系,河北沧州061001 [3]河北省数据中心相变热管理技术创新中心,河北沧州061001 [4]沧州市储热及低品位余热利用型电磁供热技术创新中心,河北沧州061001

出　　处：《能源研究与管理》2024年第4期118-125,共8页Energy Research and Management

基　　金：功率器件相变冷却装置研发项目(企业委托);河北省“三三三人才工程”资助项目(C2024037)。

摘　　要：为提高间断微通道散热器的综合性能,在间断区布置类水滴型肋柱,并将其与间断和平直微通道进行对比分析,以探究微通道散热器的传热特性、流动阻力特性及综合性能。结果表明:在研究的雷诺数范围内,间断布肋微通道的传热系数和压降比平直微通道平均高17.22%和20.62%,比间断微通道平均高9.76%和23.53%。此外,间断布肋微通道的综合性能评价系数比间断微通道平均高3.01%。与前两者相比,间断结构与类水滴型肋柱组合在两相流换热中的应用表现出了更优的换热性能。To enhance the comprehensive performance of the interrupted microchannel heat sink, water droplet-shaped ribcolumns were wedged in the interrupted area compared with the interrupted and straight microchannels. This comparisonaimed to investigate the heat transfer, flow resistance, and comprehensive performance of the microchannel heat sink. Resultsindicate that, within the studied Reynolds number range, the heat transfer coefficient and pressure drop of the interruptedlyribbed microchannels are, on average, 17.22% and 20.62% higher than those of straight microchannels, and 9.76% and23.53% higher than those of interrupted microchannels, respectively. Additionally, the comprehensive performance evaluationcoefficient of the interruptedly ribbed microchannels is, on average, 3.01% higher than that of the interrupted microchannels. Compared to the former two, the combination of interrupted structure and water droplet-shaped rib-column demonstratessuperior heat transfer performance in two-phase flow heat transfer applications.

关 键 词：间断结构 类水滴型肋 传热特性 流动阻力特性 

分 类 号：TK124[动力工程及工程热物理—工程热物理]