机电工程技术2025，Vol.54Issue(9)：22-26,31,6.DOI:10.3969/j.issn.1009-9492.2025.09.005
铝骨架复合相变材料温控性能研究
Research on Temperature Control Performance of Aluminum Frame Composite Phase Change Materials
摘要
Abstract
Phase change material(PCM)possess characteristics such as high energy storage density,excellent cycling property,and stable temperature during the phase change process,making them an ideal material for addressing the heat dissipation difficulty of small electronic components during operation.Nevertheless,PCMs have a low thermal conductivity,resulting in a slow heat transfer rate during the working process,thereby influencing the heat dissipation effect.In response to this issue,paraffin is employed as the PCM,and a porous aluminum skeleton with a VC structure is fabricated using 3D printing technology.Subsequently,paraffin is infused into the pores of the porous aluminum skeleton through a water bath infusion method,thereby preparing a porous aluminum skeleton composite PCM.The influence of the porosity of the porous aluminum skeleton on the temperature control performance of the composite PCM at 75%,85%,and 95%is experimentally explored.The results indicate that the addition of the porous aluminum skeleton can enhance the heat transfer of the PCM.Compared with the pure paraffin PCM,the maximum temperatures in the solid and melting zones decrease by 3.65℃and 7.3℃respectively,maintaining the LED light source at a lower temperature.Moreover,as the LED power increases,the temperature control effect becomes more pronounced.Within the temperature control zone,the bottom temperatures of the composite PCMs with different porosities generally exhibit a trend of T1,95%>T1,85%>T1,75%.The composite PCM with a low porosity demonstrates stronger comprehensive heat transfer performance and superior temperature control capability.关键词
多孔铝骨架/复合相变材料/温控性能/3D打印Key words
porous aluminum framework/composite phase change material/temperature control performance/3D printing分类
通用工业技术引用本文复制引用
刘嘉伟,黄伟莉,黄书烽,龙清松,龙传顺..铝骨架复合相变材料温控性能研究[J].机电工程技术,2025,54(9):22-26,31,6.基金项目
江西省教育厅科技项目(GJJ200739) （GJJ200739）
东华理工大学江西省新能源工艺及装备工程技术研究中心开放基金资助项目(JXNE2021-07) （JXNE2021-07）
东华理工大学教学改革研究课题(DHJG-21-63) （DHJG-21-63）
