化工进展2016，Vol.35Issue(8)：2367-2372,6.DOI:10.16085/j.issn.1000-6613.2016.08.10
新型三维脉动热管的性能
Performance study for new type of three-dimensional pulsating heat pipe
摘要
Abstract
A new three dimensional pulsating heat pipe was formed by improving traditional pulsating heat pipe cooling segment into a double helix structure. An experimental platform of a new three-dimensional pulsating heat pipe was established. In this paper,the influence for the start performance and heat transfer performance of the new type of three-dimensional pulsating heat pipe at various heating powers(20W to 700W)and various inclination angles(0°,50°,90°) were investigated. Acetone was used as working fluid with 54% fill ratio. The temperature of cooling water was 22℃. The start running features of pulsating heat pipe by temperature changes at heating period and cooling period were judged. Heat transfer effect of heat pipe by total thermal resistance was evaluated.Experimental results showed that the pulsating heat pipe could start up at 0°,50°and 90°. It was more conducive for the new type of pulsating heat pipe to start up and operate stably at 90°. At angle 90°,pulsating heat pipe started up at heat power 40W. Stable operation status at 100W as well as heat transfer limit at 700W were achieved. The tendency of the thermal resistance decreased first and then increased. The minimum heat resistance could reach 0.117℃/W. There was no significant difference for the heat resistance of pulsating heat pipe between the angle 90°and 50°. But at angle 0°,in the whole progress,it was easy to achieve heat transfer limit and the thermal resistance was much higher than that of 50°and 90°. Heat limit at 180W was achieved.关键词
脉动热管/热阻/传热/气化/传递/倾斜角Key words
pulsating heat pipe/thermal resistance/heat transfer/gasification/transport/inclination angle分类
能源科技引用本文复制引用
王亚雄,丁祥云..新型三维脉动热管的性能[J].化工进展,2016,35(8):2367-2372,6.基金项目
内蒙古自治区煤炭洁净化与综合利用工程技术研究中心项目（CX2015-16）。 （）
