微胶囊流体脉动热管的热输送特性

本文采用外径为2.5mm，内径为1.3mm的铜管，做成四环脉动热管，在不同工质（3％的FS-39E型微胶囊流体、乙醇、水、）、不同充液率（40％～80％）的条件下进行对比实验，探讨了工质和充液率对脉动热管热输送性能的影响。结果发现：与乙醇、水对比，微胶囊流体具有较宽的工作范围，尤其在高充液率的条件下，表现出良好的启动性能和热输送性能。

Heat-Transport Capability of Microcapsule Liquid Pulsating Heat Pipes

In this experiment, a four-turn pulsating heat pipe (PHP) was made of copper tube with an inner diameter of 1.3mm, and an outer diameter of 2.5mm. A series of experiments were performed to investigate the effect of different working fluid(3% FS-39E microcapsule liquid, water, ethanol), different fluid-filling ratios(40%～80%) on the heat-transport capability of pulsating heat pipe. The results show that when 3% FS-39E microcapsule is used as the working fluid, compared with water and ethanol, the PHP has a broader scope of work; in particular, when the fluid-filling ratio is relatively high, the PHP shows good performance of the strar-up and heat-transport capability.