膨胀石墨/石蜡复合相变材料相变过程的热分析  

Thermal Analysis in Phase Transition Process of Expanded Graphite/Paraffin Wax Composite Phase Change Materials

作　　者：吕学文[1] 考宏涛[1] 李敏[2] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009 [2]东南大学江苏省土木工程材料重点实验室,南京211186

出　　处：《材料导报》2011年第4期131-133,137,共4页Materials Reports

基　　金：国家自然科学基金(50808042)

摘　　要：利用膨胀石墨的层状结构及其高热导率制备了膨胀石墨/石蜡复合相变储能材料。采用层状复合材料的热传导模型,通过ANSYS软件对膨胀石墨/石蜡复合相变材料的相变过程进行数值模拟。结果表明,与纯石蜡相变材料相比,膨胀石墨/石蜡复合相变材料中加入膨胀石墨的强化传热性能效果很显著。With the layered structure and high heat conductivity of expanded graphite, phase change materials of expanded graphite/paraffin wax were compounded. With the use of the heat transfer model of layered composites, the phase change of the phase changes materials of expanded graphite/paraffin wax were simulated by ANSYS. The results show that compared with the pure paraffin wax phase change materials, the heat performance of the phase change materials of expanded graphite/paraffin wax is significant.

关 键 词：膨胀石墨 石蜡 相变材料 数值模拟 热分析 

分 类 号：TB34[一般工业技术—材料科学与工程]