重力条件下热管吸热器相变材料容器热分析  

Thermal Analysis of a Phase-Change-Material Canister of a Heat-Pipe Receiver under Gravity

作　　者：桂小红[1] 唐大伟[1] 梁世强[1] 袁修干[2] 

机构地区：[1]中科院工程热物理研究所,北京100190 [2]北京航空航天大学人机环境工程研究所,北京100191

出　　处：《工程热物理学报》2013年第12期2305-2308,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金项目(No:51006108)

摘　　要：本文基于地面重力条件下的导热控制微分方程,采用焓法对相变材料容器进行了二维数值建模与仿真,结合重力作用的特点,在同时考虑空穴和自然对流的情况下,对重力条件下热管吸热器蓄热容器相变传热进行了模拟计算,分析了蓄热容器内部的温度场和热性能,并将计算结果同国外相关实验结果进行了比较,验证了重力条件下计算模型的合理性与准确性,为地面热管吸热器高温固液相变蓄热实验提供了有力的分析依据.Based on heat transfer control differential equations for gravity, two-dimensional thermal analysis for phase change material canister is numerically simulated. With both void cavity and natural convection considered, the temperature fields and thermal performance of the heat-pipe receiver are analyzed under gravity. Numerical results are compared with the experimental results concerned. The accuracy of numerical model under gravity is verified. The experiment for the PCM canister on the ground can be well oreDared with our numerical simulation.

关 键 词：热管吸热器 相变材料 空穴 自然对流 

分 类 号：TK153[动力工程及工程热物理—热能工程]