Preparation and performances of bulk porous Al foams impregnated with phase-change-materials for thermal storage
Preparation and performances of bulk porous Al foams impregnated with phase-change-materials for thermal storage作者机构:National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety Hohai University Nanjing 210098 China College of Mechanics and Materials Hohai University Nanjing 210098 China Department of Mechanical and Aerospace Engineering North Carolina State University Raleigh NC 27695-7919 USA
出 版 物:《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))
年 卷 期:2012年第22卷第5期
页 面:440-444页
核心收录:
学科分类:08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程(可授工学、理学学位)]
基 金:Project (51141002) supported by the National Natural Science Foundation of China Project (200802941010) supported by the Doctoral Program of Higher Education of China Project (AMM201007) supported by the Opening Project of Jiangsu Key Laboratory of Advanced Metallic Materials
主 题:Phase change materials Porous Al foams Composites Thermal storage Dynamic mechanical properties
摘 要:Shape-stabilized phase change materials(PCMs) exhibit desirable thermal storage properties and are used for energy conservation *** study is focused on the preparation and thermal-/dynamic-mechanical properties of the bulk porous Al foams impregnated with organic PCMs such as paraffins and stearic *** results indicated that the new shape-stabilized PCMs composites could be produced by a simple and eco-friendly constant-pressure impregnation *** filling fraction of PCMs was approximately more than 80% for the impregnated samples with vacuuming or without *** shape-stabilized PCMs/Al-foam composites exhibited considerable latent thermal storage potential for good interface,desirable phase-change temperature range and latent heat values(72.9kJ/kg for the paraffin/Al-foam composite and 66.7kJ/kg for the stearic acid/Al-foam composite).Moreover,the impregnation of PCMs improved the dynamic-compression yield strength,durability and resistance to oxidation of Al foams and made its ideal energy-saving materials.