Preparation and performance analysis of metal foam composite phase change material

SHENG Qiang; XING Yuming; WANG Ze

doi:10.3969/j.issn.0438-1157.2013.10.011

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Preparation and performance analysis of metal foam composite phase change material

更新时间：2025-12-10

- Preparation and performance analysis of metal foam composite phase change material
- CIESC Journal Issue 10, Pages: 3565-3570(2013)
- 作者机构：
  
  1. 北京航空航天大学航空科学与工程学院,北京,100191
  2. 黑龙江大学建筑工程学院,黑龙江,哈尔滨,150080
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.10.011
  CLC： K02
- Online First：05 October 2013，
  
  Published：05 October 2013
- 稿件说明：
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SHENG Qiang, XING Yuming, WANG Ze. Preparation and performance analysis of metal foam composite phase change material[J]. CIESC Journal, 2013, (10): 3565-3570.
DOI：

SHENG Qiang, XING Yuming, WANG Ze. Preparation and performance analysis of metal foam composite phase change material[J]. CIESC Journal, 2013, (10): 3565-3570. DOI： 10.3969/j.issn.0438-1157.2013.10.011.

摘要

利用泡沫金属多孔结构的吸附性能

以八水氢氧化钡为相变材料

泡沫铜为基体

制备了结晶水合盐/泡沫金属复合相变材料。采用差示扫描量热法测定了八水氢氧化钡的热循环性能

随着热循环次数的增加

相变材料的相变温度基本不变

相变潜热略有减少

八水氢氧化钡具有较好的热稳定性。搭建了相变储能实验台

实验分析了3组不同实验方案

结果表明

填充泡沫铜不仅增强了相变材料的传热速率

而且有效地降低了八水氢氧化钡的过冷度。当泡沫金属使用较大孔密度后

结晶水合盐的过冷问题得到了比较明显的改善。

Abstract

Due to the adsorption performance of porous metal foam structure

a salt hydrate/metal foam composite phase change material(PCM)was prepared by using barium hydroxide octahydrate(Ba(OH)2·8H2O)as latent heat storage PCM and copper foams as supporting matrix.The thermal properties of Ba(OH)2·8H2O were measured by differential scanning calorimetry after a number of repeated thermal cycles.As the number of thermal cycles increases

the phase change temperature of Ba(OH)2·8H2O is almost constant and the latent heat of fusion decreases slightly

which implies that Ba(OH)2·8H2O has a good thermal stability.An experimental setup was built to study the heat transfer performance of Ba(OH)2·8H2O with/without copper foams.The results show that the high porosity metal foam not only enhances the heat transfer rate of Ba(OH)2·8H2O within thermal storage units

but also reduces the supercooling of PCM effectively.The supercooling of salt hydrates can be improved significantly by using larger pores per inch(PPI)metal foams.

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