化学工程2025，Vol.53Issue(4)：18-23,6.DOI:10.3969/j.issn.1005-9954.2025.04.004
多管式相变储热单元的一体式拓扑优化及蓄放热性能分析
Integrated topological optimization and heat storage and release performance analysis of multi-tube phase change heat storage units
摘要
Abstract
Topological optimization method with variable density was applied to obtain efficient heat transfer fins for multi-tube phase change heat storage units.The influence of the increase of the number of inner tubes on the structure of the topological optimization fins was studied,and the heat storage and release process of the reconstructed topological optimization fins was analyzed.The results show that the topological optimization fins of single-tube and multi-tube phase change heat storage units are symmetrically distributed,and the topological optimization fins of single-tube units show primary bifurcation,while the structure of the multi-tube units is more complex.The fins extending towards the outer tube are tree-shaped and have primary and secondary bifurcation,while the fins extending towards the inner tube are mostly straight-rib-shaped,a small part of them are Y-shaped,and the emergence of bifurcations is conducive to heat transfer.The 3-tube,9-tube and 16-tube models were constructed with the same volume proportion of straight ribs.In the heat exothermic processes,the solidification time of the 3-tube,9-tube and 16-tube topological models is reduced by 87.24％,74.91％and 78.29％,respectively,compared with that of the straight-rib models.The melting time of the 3-tube,9-tube and 16-tube topological models is reduced by 74.28％,75.04％and 77.25％,respectively,which proves that the topological optimized fin can improve the heat transfer efficiency of the phase-change heat storage unit during heat storage and release,and the temperature field distribution of the topological model is more uniform.关键词
多管/相变储热/拓扑优化/强化传热/数值模拟Key words
multi-tube/phase change thermal storage/topology optimization/heat transfer enhancement/numerical simulation分类
能源科技引用本文复制引用
冯炎萍,赵明,程瑞昌..多管式相变储热单元的一体式拓扑优化及蓄放热性能分析[J].化学工程,2025,53(4):18-23,6.基金项目
国家自然科学基金资助项目(51306120) （51306120）
