Experimental Study on the Melting Heat Transfer Characteristics of Paraffin/Copper Foam Composite

doi:10.7652/xjtuxb202003023

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Experimental Study on the Melting Heat Transfer Characteristics of Paraffin/Copper Foam Composite

更新时间：2025-07-09

- Experimental Study on the Melting Heat Transfer Characteristics of Paraffin/Copper Foam Composite
- Vol. 54, Issue 3, Pages: 188-196(2020)
- 作者机构：
  
  东华大学环境科学与工程学院,上海,201620
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202003023
  CLC： TK02
- Online First：10 March 2020，
  
  Published：2020
- 稿件说明：
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Experimental Study on the Melting Heat Transfer Characteristics of Paraffin/Copper Foam Composite[J]. 2020, 54(3): 188-196.
DOI：

Experimental Study on the Melting Heat Transfer Characteristics of Paraffin/Copper Foam Composite[J]. 2020, 54(3): 188-196. DOI： 10.7652/xjtuxb202003023.

摘要

为了探究不同厚度的金属泡沫铜对石蜡融化过程的影响

设计搭建了可视化相变蓄热实验台

制备了不同厚度的金属泡沫铜复合相变材料

通过实验对比研究了纯相变材料和添加不同厚度金属泡沫铜的复合相变材料的融化界面变化和内部温度分布

分析了不同厚度的金属泡沫铜对换热强度的影响。实验结果表明:在纯相变材料融化过程中自然对流起主导作用

5 mm厚的金属泡沫铜促进了上部的石蜡自然对流

10、15、20 mm的金属泡沫铜抑制了石蜡的自然对流; 金属泡沫铜的厚度越大

导热换热强度越大; 对流换热强度和导热换热强度二者呈现出负相关的关系; 当金属泡沫铜厚度为14 mm时

导热换热强度和对流换热强度相当。

Abstract

To explore the melting behavior of copper foam composite materials

a visuali-ed phase-change thermal storage experimental setup was built. Foamed copper phase change materials with different thickness were prepared. The changes of the melting interface were studied by experiments

and the internal temperature distributions of pure phase-change materials and composite phase-change materials were compared. The effect of metal foam thickness on the heat transfer intensity was analy-ed. The experimental results show that natural convection plays a leading role in the melting process of pure phase-change materials. The 5 mm-thick metal foam promotes the natural convection of the upper paraffin

however the metal foam with the thickness of 10

15 or 20 mm inhibits the natural convection of paraffin. The larger the thickness of copper foam

the greater the heat conduction intensity. There is a negative correlation between the convection heat transfer intensity and conduction heat transfer in

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