热科学学报（英文版）2008，Vol.17Issue(2)：181-185,5.
Experimental research on heat transfer of pulsating heat pipe
Experimental research on heat transfer of pulsating heat pipe
摘要
Abstract
Experimental research was conducted to understand heat transfer characteristic of pulsating heat pipe in this paper,and the PHP is made of high quality glass capillary tube. Under different fill ratio, heat transfer rate and many other influence factors, the flow patterns were observed in the start-up, transition and stable stage. The effects of heating position on heat transfer were discussed. The experimental results indicate that no annular flow appears in top heating condition. Under different fill ratios and heat transfer rate, the flow pattern in PHP is transferred from bulk flow to semi-annular flow and annular flow, and the performance of heat transfer is improved for down heating case. The experimental results indicate that the total heat resistant of PHP is increased with fill ratio, and heat transfer rate achieves optimum at filling rate 50%. But for pulsating heat pipe with changing diameters the thermal resistance is higher than that with uniform diameters.关键词
pulsating heat pipe, influence factors, performance of heat transferKey words
pulsating heat pipe, influence factors, performance of heat transfer分类
数理科学引用本文复制引用
LI Jia,Yan Li..Experimental research on heat transfer of pulsating heat pipe[J].热科学学报（英文版）,2008,17(2):181-185,5.基金项目
This investigation is currently supported by the Na-tional Natural Science Foundation of China(No.50776006)and Ministry of Education of China(No.107113). （No.50776006）
