首页|嵌入式歧管微通道结构优化及性能研究

嵌入式歧管微通道结构优化及性能研究

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嵌入式歧管式微通道相比于传统微通道具有温度分布均匀、流速低、结构紧凑、压降小等优点,本文对嵌入式歧管微通道的不同微通道深度、歧管数、单行微通道数进行了数值模拟,发现在微通道深度130 μm、歧管数为4、单行微通道数为43时表面最高温度为46.96℃,出入口压降为50.23 kPa,实现对1 500 W/cm2超高热流密度热源的散热,具有最佳的综合传热性能.通过试验验证,相同结构散热器的试验结果与仿真分析差距在2%左右.
Structure optimization and performance study of embedded manifold microchannel
Compared with traditional microchannels,embedded manifold microchannels have the advantages of uniform tem-perature distribution,low flow velocity,compact structure and low pressure drop.In this paper,numerical simulations were con-ducted for different microchannel depths,manifold numbers,and single row microchannel numbers of embedded manifold micro-channels.It is found that when the microchannel depth is 130 μm,the number of manifolds are 4,and the number of single row microchannels are 43,the highest surface temperature is 46.96 ℃,and the inlet and outlet pressure drop is 50.23 kPa,achie-ving the best comprehensive heat transfer performance for 1 500 W/cm2 ultra-high heat flux density heat sources.Through ex-perimental verification,the difference between the experimental results and simulation analysis of the same structure radiator is a-bout 2%.

ManifoldMicrochannelDepthPressure dropMaximum temperature

占化斌、韦佳伟、陈建辉、郝奇、万昌韦、周一帆

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安徽省热管理技术工程实验室,中国电子科技集团公司第十六研究所,合肥 230088

歧管式 微通道 深度 压降 最高温度

国家重点研发计划

2020YFA0709700

2024

低温与超导
中国电子科技集团公司第十六研究所

低温与超导

北大核心
影响因子:0.243
ISSN:1001-7100
年,卷(期):2024.52(10)