用金属泡沫增强改性三水醋酸钠复合相变材料的传热性能

IF 2.5 4区 工程技术 Q2 ENGINEERING, MECHANICAL Journal of Porous Media Pub Date : 2024-08-01 DOI:10.1615/jpormedia.2024053343
Huijin Xu, MS Liu, ZF He
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引用次数: 0

摘要

本文利用泡沫铜(CF)进行了一项实验研究,以提高相变材料(PCM)的传热能力。本文建立了一个数值模型来预测金属泡沫中复合相变材料(CPCM)的熔化和凝固过程。由于 CF/CPCM 具有相互连接的多孔结构和高热导率,因此其阶跃冷却曲线理想,过冷度低,热导率高。CF/CPCM 的物理参数符合预期目标。因此,在实际应用中应选择更合适的解决方案。CF/CPCM 蓄热放热装置在 3600s 时基本完成放热凝固过程,在 4200s 时基本完成吸热熔化过程,对装置整体传热强化效果较为明显,减少了材料的不均匀性,在应用成本允许的情况下,可进行 CF/CPCM 蓄热放热装置的设计与建造。
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Heat Transfer Enhancement of Modified Sodium Acetate Trihydrate Composite Phase Change Material with Metal Foams
In this paper, an experimental study is performed to enhance the heat transfer ability of phase change material (PCM) using copper foam (CF). A numerical model is established to predict the melting and solidification process of composite phase change materials (CPCM) in metal foams. The step-cooling curve of CF/CPCM is ideal, with low subcooling and high thermal conductivity because of its interconnected porous structure and high thermal conductivity. the CF/CPCM physical parameters are in line with the expected target. Therefore, a more suitable solution should be selected for practical applications. The CF/CPCM heat storage and exothermic device basically completes the exothermic solidification process at 3600s, and basically completes the heat absorption and melting process at 4200s, which has a more obvious effect on the overall heat transfer strengthening of the device and reducing the non-uniformity of the material, and the design and construction of the CF/CPCM heat storage and exothermic device can be carried out when the application cost is possible.
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来源期刊
Journal of Porous Media
Journal of Porous Media 工程技术-工程:机械
CiteScore
3.50
自引率
8.70%
发文量
89
审稿时长
12.5 months
期刊介绍: The Journal of Porous Media publishes original full-length research articles (and technical notes) in a wide variety of areas related to porous media studies, such as mathematical modeling, numerical and experimental techniques, industrial and environmental heat and mass transfer, conduction, convection, radiation, particle transport and capillary effects, reactive flows, deformable porous media, biomedical applications, and mechanics of the porous substrate. Emphasis will be given to manuscripts that present novel findings pertinent to these areas. The journal will also consider publication of state-of-the-art reviews. Manuscripts applying known methods to previously solved problems or providing results in the absence of scientific motivation or application will not be accepted. Submitted articles should contribute to the understanding of specific scientific problems or to solution techniques that are useful in applications. Papers that link theory with computational practice to provide insight into the processes are welcome.
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