Oscillation heat transfer dynamic model for new type oscillation looped heat pipe with double liquid slugs
来源期刊：中南大学学报(英文版)2012年第11期
论文作者：E Jia-qiang(鄂加强) ZHU Rong-jia(朱蓉甲) CHEN Jian-mei(陈健美) LONG Yan-ping(龙艳平) HU Xiao-feng(胡小峰)
文章页码：3194 - 3201
Key words：oscillation heat pipe; physical model; numerical solution
Abstract: In order to explain the oscillation heat transfer dynamics of closed loop oscillation heat pipe (CLOHP) with two liquid slugs, analysis on the forces and heat transfer process of the partial gas-liquid phase system involving multiple parameters was carried out, and a new type oscillation heat transfer dynamic model of the CLOHP was set up based on conservation laws of mass, momentum and energy. Application results indicate that its oscillation heat transfer dynamics features depend largely on the filling rate, pipe diameter and difference in temperature. Besides, oscillation intensity and transfer performance can be improved to a large extent by increasing the temperature difference properly and enlarging the pipe diameter within a certain range under a certain filling rate.
E Jia-qiang(鄂加强)1, ZHU Rong-jia(朱蓉甲)1, CHEN Jian-mei(陈健美)2, LONG Yan-ping(龙艳平)1, HU Xiao-feng(胡小峰)1
(1. College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China;
2. Hunan Provincial Engineering Vehicle Chassis Manufacturing Engineering Technology Research Center,
Changsha 410205, China)
Abstract:In order to explain the oscillation heat transfer dynamics of closed loop oscillation heat pipe (CLOHP) with two liquid slugs, analysis on the forces and heat transfer process of the partial gas-liquid phase system involving multiple parameters was carried out, and a new type oscillation heat transfer dynamic model of the CLOHP was set up based on conservation laws of mass, momentum and energy. Application results indicate that its oscillation heat transfer dynamics features depend largely on the filling rate, pipe diameter and difference in temperature. Besides, oscillation intensity and transfer performance can be improved to a large extent by increasing the temperature difference properly and enlarging the pipe diameter within a certain range under a certain filling rate.
Key words:oscillation heat pipe; physical model; numerical solution
