可再生能源2026，Vol.44Issue(4)：476-483,8.
添加环形直肋的球形相变储热单元热性能研究
Study on the heat performance of spherical phase change thermal storage unit with annular straight fins
摘要
Abstract
To improve the heat storage efficiency of spherical phase change thermal storage units,a combination of experimental and numerical simulation methods was used to investigate the evolution of the melting process of phase change materials inside the spherical storage unit under different heights of annular ribs.The research results indicate that as the height of the annular ribs gradually increases,the rate of temperature rise within the unit accelerates,and compared to units without ribs,the time for complete melting of the phase change material is shortened by 4.81%,7.53%,10.57%,25.98%,29.53%,and 31.74%,respectively.In the early stages of melting,heat transfer is primarily conducted through conduction,while in the later stages of melting,the melting rate in the upper region of the ribs gradually exceeds that in the lower region,with heat transfer primarily through natural convection.This research lays the foundation for the structural optimization study of spherical phase change thermal storage units.关键词
球形储热单元/数值模拟/环形肋片/相变材料Key words
spherical heat storage unit/numerical simulation/annular straight fins/phase change material分类
能源科技引用本文复制引用
付力旭,贺磊,赵默涵,郭一凡,胡俊虎,王硕林..添加环形直肋的球形相变储热单元热性能研究[J].可再生能源,2026,44(4):476-483,8.基金项目
内蒙古自治区自然科学基金项目(2025MS05061):内蒙古自治区直属高校基本科研业务费研究生提升基本科研能力项目(ZTY2025038). （2025MS05061）
