重力型热管散热器传热特性的实验研究

孙志坚，王立新，王岩，吴存真，岑可法选择水作为工质，通过确定蒸发段和冷凝段的结构尺寸，设计研制了电子器件重力型热管散热器，建立了其传热性能测试实验平台，测试了在不同散热功率、进口风温和进口风速下热源表面的温度，比较并分析了测试结果.研究表明,重力型热管散热器具有良好的散热性能，可满足较高热流密度电子器件的冷却要求.性能测试台是改进散热器设计的重要手段，测试系统风速、风温及散热功率稳定，能达到设计时所要求的精度，为进一步研究重力型热管散热器的传热性能提供了实验基础.

Experimental study on heat transfer characteristics of thermosyphon radiator

A thermosyphon radiator for electronic device cooling was designed and made,and an experimental platform for cooling performance test was established.The radiator utilized water as working substance,and the structural sizes of evaporator and condenser were determined.The heat source temperature under different cooling power,inlet wind temperature and inlet wind speed was tested and compared. Results show that the new thermosyphon radiator has good heat dissipation performance and can meet the cooling requirement of higher thermal current density on electronic device.The performance platform can be used to improve the design of thermosyphon radiator.The cooling power,wind temperature and wind speed of the testing system are stable and can meet the precision of design.The work makes some basement of the further researching on cooling performance of thermosyphon radiator.