The Dual-scale analysis of Thermal Conductivity about Closed-cell Aluminum foam

摘要：

　　The closed-cell aluminum foam,owing to its low thermal conductivity,will be expected in the application of heat insulation field.By Scanning electron microscope,large quantities of micro-scale pores are observed in the skeleton of closed-cell aluminum foam.It means the structure of closed-cell aluminum foam shows the dual-scale characteristics.According to this kind of special structure,the dual-scale analysis method is proposed to estimate its thermal conductivity.Compared with experiment results,the research disclosed that the dual-scale method can improve the prediction accuracy greatly.This work provides a new method for thermal properties estimation and makes preparation for more suitable empirical formula for closed-cell aluminum foam.

关键词： thermal conductivity closed-cell aluminum foam multiscale method

作者: Zhang donghui Chen daifen Ma Zheshu Zhou xiangyang

作者单位: Jiangsu University of Science & Technology,School of Power Engineering,Zhenjiang,212003 Central South University,School of Metallurgical Science and Engineering,Changsha 410083

会议类型: 国际会议

会议名称: 第26届效率、成本、优化、模拟及环境影响能源系统国际会议

会议地点: 桂林

会议语种:英文

页码: 1-9

在线出版日期: 2013-07-16（万方平台首次上网日期，不代表论文的发表时间）