Research on Optimization and Heat Transfer Characteristics of Topological Fins in Phase Latent Thermal Storage Units

ZHEN Hualong; ZHANG Shengqi; LIU Yunsheng; PU Liang

doi:10.7652/xjtuxb202407006

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Research on Optimization and Heat Transfer Characteristics of Topological Fins in Phase Latent Thermal Storage Units

更新时间：2025-07-28

- Research on Optimization and Heat Transfer Characteristics of Topological Fins in Phase Latent Thermal Storage Units
- Vol. 58, Issue 7, Pages: 62-72(2024)
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院,西安,710049
  2. 江西卓超科技有限公司,江西,新余,338000
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202407006
  CLC： TK124
- Online First：10 July 2024，
  
  Published：2024
- 稿件说明：
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ZHEN Hualong, ZHANG Shengqi, LIU Yunsheng, et al. Research on Optimization and Heat Transfer Characteristics of Topological Fins in Phase Latent Thermal Storage Units[J]. 2024, 58(7): 62-72.
DOI：

ZHEN Hualong, ZHANG Shengqi, LIU Yunsheng, et al. Research on Optimization and Heat Transfer Characteristics of Topological Fins in Phase Latent Thermal Storage Units[J]. 2024, 58(7): 62-72. DOI： 10.7652/xjtuxb202407006.

摘要

为提升管壳式相变储能单元的蓄放热速率

采用基于变密度法的拓扑优化方法

对二维相变储能单元的翅片进行优化

设计了体积比(翅片体积占设计域体积比)分别为0.1、0.15、0.2的导热拓扑翅片; 同时考虑液体流动

设计了体积占比分别为0.1、0.15、0.2的对流拓扑翅片。基于上述翅片构型

采用数值模拟方法

对比研究了分别使用拓扑翅片和矩形翅片的相变储能单元的蓄放热特性

分析了使用不同体积占比的拓扑翅片的蓄放热过程。研究表明:在蓄热过程中

使用体积占比为0.15的导热拓扑翅片和对流拓扑翅片的相变储能单元蓄热速率较矩形翅片分别提升了11.5%、33.0%

对流拓扑翅片由于考虑了蓄热过程中相变材料的自然对流效应

其性能优于相同体积占比的导热拓扑翅片; 在放热过程中

导热拓扑翅片由于翅片分布较均匀、与相变材料接触区域大

其性能优于相同体积占比的对流拓扑翅片

其中体积占比为0.15的导热拓扑翅片构型综合性能最优。该研究为翅片设计提供了有效支撑

对推动拓扑优化在相变储能单元内的实际应用具有重要价值。

Abstract

This paper designs the fin configuration of the two-dimensional phase latent thermal storage unit using the topology optimization method based on the variable density method to improve the thermal storage and release rate of the phase latent thermal storage unit. The conductive topological fins with the volume proportion of 0.1

0.15

and 0.2 are devised. In addition

considering the liquid flow

the convective topological fins with the volume proportion of 0.1

0.15

and 0.2 are designed. Subsequently

a comparison is drawn between the thermal storage and release characteristics of the topological fins and the rectangular fins in the phase latent thermal storage unit. using a numerical simulation method. An analysis is conducted on the thermal storage and release processes of topological fins with different volume proportions. The results show that the thermal storage rates of the phase latent thermal storage unit using conductive and convective topological fins with a volume proportion of 0.15 surpass those of rectangular fins by 11.5% and 33.0%

respectively. When considering the same volume proportion

the convective topological fins outperform the conductive topological fins due to the natural convection effect of the phase change material during the thermal storage process. During the thermal release process

under the condition of the same volume proportion

the conductive topological fins exhibit better performance than the convection topological fins because of their uniform distribution and large contact area with the phase change material. The conductive topological fins with a volume proportion of 0.15 demonstrate the best comprehensive performance. This study offers insights into fin design and significantly contributes to advancing the practical application of topology optimization in phase latent thermal storage units.

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references

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