双面矩形平板脉动热管的传热性能

The thermal performance of a flat pulsating heat pipe with double sides rectangular channel

对一种双面矩形通道的新型平板式脉动热管进行了传热性能试验研究,分析了充液率、倾角、工质等对传热的影响.从试验结果来看,存在最佳充液率（25%~30%）和最佳工作角度（90°）,使得热管工作性能最优;在相同条件下,采用二次蒸馏水作为工作介质时,热管工作更稳定.该型热管传热性能（280 W/（cm.℃））较过去研发的其他脉动热管（91.43 W/（cm.℃））,当量导热系数提高2倍以上.

The detailed experiment was conducted to investigate the thermal performance of a new type of flat pulsating heat pipe with double sides rectangular channel.Some useful conclusions were obtained by analysis with the effects of filling ratios,inclination and working fluid on the thermal performance.The experimental results demonstrate that,the thermal performance of heat pipe is optimum with the optimum filling ratio 25%～30% and the best working angle 90 °,under the same conditions,the heat pipe works more steady when use the redistilled water,the equivalent thermal conductivity（280 W/（cm·℃）） is three times size as the others（91.43 W/（cm·℃））[1] researched in the past years.