大功率电力电子散热器流动传热特性实验研究  

Experimental Investigation on Flow and Heat Transfer of High Power Electronics Radiator

作　　者：潘瑶 刘欣[1] PAN Yao;LIU Xin(China Academy of Launch Vehicle Technology,Beijing 100076,China)

机构地区：[1]中国运载火箭技术研究院,北京100076

出　　处：《电力电子技术》2020年第6期10-12,共3页Power Electronics

摘　　要：为解决大功率电力电子设备散热问题,设计了射流微通道散热器,并搭建了实验测试系统对不同体积流量和加热功率下射流微通道散热器的传热和流动特性进行了实验测试。实验结果表明:随着体积流量的增加,射流微通道散热器的换热量不断提高,在测试流量下,最高能够满足1 000 W的散热需求。射流微通道散热器换热系数和进出口压差均随体积流量的增加而增大,但换热系数增大的幅度逐渐降低,而进出口压差增加的幅度逐渐增加,因此散热器在小驱动功耗下,增加驱动功耗对于改善换热效果更显著。In order to solve the heat dissipation of high-power electronic equipment,a micro-channel radiator combined with jet impingement is designed and an experimental test system is built.The heat transfer and flow characteristics of the jet micro-channel radiator combined with jet impingement are tested under different volume flow and heating power.The results show that,increased volume flow can improve the heat exchange capacity of the radiator,and the heat dissipation requirement of 1000 W can be satisfied under the test flow.The heat transfer coefficient and the pressure drop of the jet micro-channel radiator combined with jet impingement will increase with the increase of the volume flow.The increase of the heat transfer coefficient gradually decreases,while the increase of the pressure drop difference gradually increases.Under the smaller driving power consumption,increasing the driving power consumption is more significant for improving the heat transfer effect.

关 键 词：散热器 射流微通道 实验测试 

分 类 号：TU832.23[建筑科学—供热、供燃气、通风及空调工程]