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

作     者：Xiaohong GUI Wei QU Bin LIN Xiugan YUAN 

作者机构：Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing 100190 China University of Notre Dame Notre Dame IN 46556 USA Institute of Man-Machine-Environment Engineering Beihang University Beijing 100191 China 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2010年第19卷第2期

页      面：160-166页

核心收录：

学科分类：080701[工学-工程热物理] 08[工学] 0807[工学-动力工程及工程热物理] 09[农学] 0903[农学-农业资源与环境] 

主　　题：Heat-pipe Receiver Phase Change Material Void Cavity Natural Convection 

摘      要：High-temperature Phase Change Material (PCM) is used as a thermal storage medium of a heat-pipe receiver in an advanced solar dynamic *** both void cavity and natural convection considered,thermal performance of the heat-pipe receiver is numerically analyzed under *** results indicate that the PCM contained in the integrated heat pipe performs an averaging function of heat *** thermal performance of the heat-pipe receiver is stable and *** a heating cycle is stable,the temperature fluctuations both on heat-pipe wall and in PCM canister remain less than 13 K throughout a sunlight and eclipse *** utility of PCM is essentially *** maximum melting ratio of PCM is 92%.Under gravity,PCM melts more quickly with the effect of natural *** convection accelerates the process of phase *** results are compared with the experimental results *** accuracy of numerical model under gravity is *** experiment for the PCM canister on the ground can be well prepared with our numerical simulation.