储能科学与技术2024，Vol.13Issue(5)：1460-1470,11.DOI:10.19799/j.cnki.2095-4239.2023.0843
石蜡与低熔点合金双级联相变材料强化板翅式散热器换热性能的数值模拟
Numerical simulation of heat transfer performance of plate-fin radiator reinforced with double cascade phase change material of paraffin and low melting point alloy
张云峰 1张学文 1钟威 1蒋杜伟 1陈泽伟 1张杰1
作者信息
- 1. 长沙理工大学能源与动力工程学院,湖南 长沙 410114
- 折叠
摘要
Abstract
This article focuses on the relationship between phase change materials(PCMs),fin structures,and various PCM volume ratio working conditions on the heat transfer performance of the phase change radiator.We developed a plate-fin phase change radiator model to study the phase change heat transfer process of cascade phase change technology and measures to optimize the heat transfer performance.The results show that changing the combination of PCMs significantly influences the heat transfer process of PCMs.For a cascaded phase change radiator with dual PCMs,PCM1 and PCM2 are arranged with decreasing phase change temperatures for optimal thermal management performance.Compared with 4-fin units,16 fins yield lower operating temperatures and 25.3%and 22.5%shorter solidification times for the two cascaded PCM combinations of phase change cooling units.Moreover,the thermal management performance is optimal under the setting of 16 fins with a fin thickness of 0.5 mm.Using paraffin and low melting point alloy materials,when the PCM volume ratio is 1∶2,the thermal management times at two critical temperatures are prolonged by 17.2%and 15%,respectively,and the temperature rise rate also decreases gradually with an increase in the volume occupied by the low melting point alloy.Considering the thermal management time and temperature rise rate together,the thermal management performance of the cascaded phase change radiator is optimal when the PCM volume ratio is 1∶2.关键词
相变材料/板翅式散热器/级联相变/数值模拟/热管理Key words
phase change material/plate fin radiator/cascade phase transition/numerical simulation/thermal management分类
能源科技引用本文复制引用
张云峰,张学文,钟威,蒋杜伟,陈泽伟,张杰..石蜡与低熔点合金双级联相变材料强化板翅式散热器换热性能的数值模拟[J].储能科学与技术,2024,13(5):1460-1470,11.
