化学工程2017，Vol.45Issue(12)：39-42,57,5.DOI:10.3969/j.issn.1005-9954.2017.12.009
不等径脉动热管的传热性能研究
Heat transfer performance on unequal-diameter pulsating heat pipe
摘要
Abstract
A set of unequal-diameter pulsating heat pipe was designed and its performance was tested.An unequal diameter pulsating heat pipe made of copper with 2.5 mm ID and 3.0 mm OD with fin in the condenser section is used in the present work to evaluate the heat transfer performances where the evaporation section is 400 mm,adiabatic section is 360 mm and condensation section is 40 mm.The attempt is to analyze and compare the effects on the heat transfer performances of the unequal-diameter pulsating heat pipe with inclination angle of 0°(horizontal),30°,45° and 90°(vertical).Acetone is used as working fluid with 30％,50％ and 70％ filling ratio in the unequal-diameter pulsating heat pipe.Ultrapure water is used as cooling water with 0.1,0.3,0.5 m3/h flow rate.The experimental results indicate the influence of filling ratio,inclination angle,the flow of cooling water on the performance of the unequal-diameter pulsating heat pipe studied with different orientation and heat load is strong.The experimental results show that the maximal heat transfer quantity works at filling ratio 50％,angle 90°,cooling water ratio 0.5 m3/h.The minimum heat resistance reaches 0.10 ℃/W.关键词
脉动热管/传热/倾斜角度/充液率Key words
pulsating heat pipe/heat transfer/inclination angle/filling ratio分类
能源科技引用本文复制引用
张强,韩晓星,王亚雄,李棚辉..不等径脉动热管的传热性能研究[J].化学工程,2017,45(12):39-42,57,5.基金项目
内蒙古科技大学创新基金资助项目(2014QDL027) （2014QDL027）
内蒙古科技大学大学生科技创新基金资助项目(2015092) （2015092）
内蒙古自治区高等学校科学研究资助项目(NJZY17165) （NJZY17165）
