脉动热管实验台的搭建及可视化实验研究Design of Pulsating Heat Pipe Experiment Rig and Visual Experiment Study
徐荣吉,王瑞祥,丛伟,吴业正
XU Rong-ji1,WANG Rui-xiang1,2,CONG Wei1
摘要(Abstract)：
介绍了脉动热管可视化实验台的搭建,通过此实验台可以定量研究工质种类、充注量、管道特性、倾斜角度、加热功率、冷却能力等参数对脉动热管传热性能的影响,并能实现整个管道工质流型变化的可视化,通过可视化实验观察到,脉动热管从启动到稳定运行的过程,工质的流型会经历泡状流、弹状流、塞状流到搅拌流的变化。
The experiment rig of visible pulsating heat pipe was introduced in detail,which included visible and parallel-grooved pulsating heat pipe(PHP),temperature acquisition,setting of work condition and video collection system.The factions,such as the kind of working fluid,filling ratio,character of pipe,inclination angle,heat input,cooling ability etc.,could be quantificationally studied,which affected the heat transfer property of PHP.While the changes of the working fluid flow patterns in the whole PHP,from bubbly flow,slug flow and plug flow to churn flow,could be observed in the process from start-up to steeady run.
关键词(KeyWords)：
热工学;脉动热管;可视化;流型
pyrology;pulsating heat pipe;visible;flow pattern
基金项目(Foundation): 北京市属市管高等学校人才强教计划资助项目(PHR(IHLB)-bj-bicea-1);; 北京市自然科学基金项目(2042008)
作者(Author):
徐荣吉,王瑞祥,丛伟,吴业正
XU Rong-ji1,WANG Rui-xiang1,2,CONG Wei1
参考文献(References)：
- [1]Akachi H,Polasek F,Stulc P.Pulsating heat pipes[A].Proceedings of the 5th International Heat PipeSymposium[C].Melbourne,Australia,1996,208-217.
- [2]Sameer Khandekar,Manfred Groll.An insight intothermo-hydrodynamic coupling in closed loop pulsa-ting heat pipes[J].International Journal of ThermalSciences,2004,43:13-20.
- [3]Sakulchangsatjatai P,Terdtoon P,WongratanaphisanT,et al.Operation modeling of closed-end andclosed-loop oscillating heat pipes at normal operatingcondition[J].Applied Thermal Engineering,2004,24:995-1008.
- [4]Piyanun Chroensawan,Sameer Khandekar,ManfredGroll,et al.Closed loop pulsating heat pipes Part A:parametric experimental investigations.Applied Ther-mal Engineering 2003,23:2009-2020.
- [5]杨蔚原,张正芳,马同泽,等.回路型脉动热管的运行与传热[J].上海:交通大学学报,2003,37(9):1398-1401.
- [6]曹小林,席战利,周晋,等.脉动热管运行可视化及传热与流动特性的实验研究[J].热能动力工程,2004,19(7):411-415.
- [7]曹小林,周晋,晏刚,等.脉动热管的结构改进及其传热特性的研究[J].工程热物理学报,2004,25(7):807-809.