能源研究与管理2025，Vol.17Issue(4)：1-8,8.DOI:10.16056/j.2096-7705.2025.04.001
复合翅片结构对相变储热单元换热影响及优化
Influence and Optimization of Composite Fin Structure on Heat Transfer of Phase Change Heat Storage Unit
摘要
Abstract
To enhance the melting and heat storage performance of latent heat storage devices for efficient thermal energy storage and utilization,a composite fin structure integrating circular and longitudinal fins is proposed.Numerical simulations were conducted to compare the melting process of phase change materials(PCM)with composite fins versus single fins.The study analyzed the influence of three key parameters the position,volume ratio,and spacing between annular and longitudinal fins on the melting behavior and heat transfer characteristics of the composite fins.Results revealed that,significant melting enhancement is achieved when annular fins are positioned closer to the outlet,their volume proportion approaches 50％,and the gap between them and longitudinal fins is maximized(under non-connected conditions).After further optimization using the response surface methodology,the optimal parameter combination was obtained:distance from the exit 17.20 mm,volume ratio 39.21％,and fin spacing 3.92 mm.Under these optimized conditions,the total melting time was reduced to only 1 150 seconds,representing a substantial improvement in melting efficiency of approximately 39.9％and 34.2％compared to single longitudinal and single annular fin structures,respectively.关键词
相变储热/复合翅片/响应面法/翅片参数优化Key words
phase change heat storage/composite fins/response surface method/fin parameter optimization分类
能源科技引用本文复制引用
HAN Xu,BO Xilu..复合翅片结构对相变储热单元换热影响及优化[J].能源研究与管理,2025,17(4):1-8,8.基金项目
国家重点研发计划项目(2022YFE0117200) （2022YFE0117200）
保定市科技计划项目(2272P008) （2272P008）
