储能科学与技术2025，Vol.14Issue(9)：3301-3310,10.DOI:10.19799/j.cnki.2095-4239.2025.0220
不同力场下泡沫铜对相变材料传热及控温特性的影响
Influence of copper foam on the heat transfer and temperature control characteristics of phase change materials under different force fields
摘要
Abstract
Phase change material(PCM)-based latent heat storage cooling technology has broad applications in aerospace thermal management because of its high energy storage density and passive temperature regulation capability.Copper foam,which is commonly employed to enhance the thermal conductivity of PCMs,suppresses natural convection while improving heat transfer.Complex force fields,including hypergravity,microgravity,and variable acceleration induced by vehicle maneuvers,interact with this convection suppression and introduce uncertainties in the overall heat transfer enhancement effect.Herein,experiments were conducted to analyze the effects of copper foam on the heat transfer and temperature control performance of PCM under different force field conditions.The results indicated that under positive force fields,incorporating copper foam reduces the PCM melting time by up to 62.5%and extends the effective temperature control time by up to 153.4%.Under negative force fields,the melting enhancement effect of copper foam decreases as the force field intensity increases,and the temperature uniformity and late-stage effective temperature control time of composite phase change materials(CPCMs)slightly decrease compared with that of pure PCM.Notably,the addition of copper foam considerably improves the heat transfer stability of the phase change thermal control unit under complex force fields;the fluctuation amplitudes of the melting time and temperature control duration of CPCMs are reduced by 86.8%and 52.6%,respectively,compared with that of pure PCM.These findings provide valuable theoretical insights for the optimal design of phase change materials in aerospace thermal management systems under complex force field conditions.关键词
泡沫铜/相变材料/不同力场/传热性能/传热稳定性Key words
copper foam/phase change materials/different force fields/heat transfer performance/heat transfer stability分类
能源科技引用本文复制引用
高启发,张楠,张兆利,杜雁霞,袁艳平..不同力场下泡沫铜对相变材料传热及控温特性的影响[J].储能科学与技术,2025,14(9):3301-3310,10.基金项目
国家自然科学基金(52006183),中央高校基本科研业务费专项资金(26822024GF021). （52006183）
