Preparation and properties of nano composite phase change thermal storage materials

KANG Yameng; DIAO Yanhua; ZHAO Yaohua; WANG Shun

doi:10.11949/j.issn.0438-1157.20160619

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Preparation and properties of nano composite phase change thermal storage materials

更新时间：2025-12-10

- Preparation and properties of nano composite phase change thermal storage materials
- CIESC Journal Issue S1, Pages: 372-378(2016)
- 作者机构：
  
  北京工业大学建筑工程学院,北京,100124
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160619
  CLC： K02
- Online First：31 August 2016，
  
  Published：31 August 2016
- 稿件说明：
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KANG Yameng, DIAO Yanhua, ZHAO Yaohua, et al. Preparation and properties of nano composite phase change thermal storage materials[J]. CIESC Journal, 2016, (S1): 372-378.
DOI：

KANG Yameng, DIAO Yanhua, ZHAO Yaohua, et al. Preparation and properties of nano composite phase change thermal storage materials[J]. CIESC Journal, 2016, (S1): 372-378. DOI： 10.11949/j.issn.0438-1157.20160619.

摘要

相变蓄热材料（phase change materials，PCMs）是相变蓄热技术研究的基础。针对普通相变蓄热材料热导率低的缺点，采用纳米技术改善石蜡的相变传热性能，从而提高其热导率及热扩散系数。通过纳米颗粒-石蜡复合材料熔化过程测试和纳米颗粒沉降过程观察，确定铜纳米颗粒和Hitenol BC-10分别作为实验用纳米颗粒和分散剂，在制备稳定的纳米铜颗粒-石蜡复合相变材料的基础上，对其热物性进行了实验研究。结果表明纳米铜颗粒的添加使得石蜡热导率增幅最大，实验测得固态纳米铜-石蜡热导率提高7.9%，液态提高3.8%，而固、液态热扩散系数则分别提高了20.6%和16%。

Abstract

Phase change materials(PCMs) is the basis of the research of phase change heat storage technology. Aimed at the low thermal conductivity of common phase change material-paraffin

nano particles addition technology was used to enhance the heat transfer performance of paraffin

so the thermal conductivity and thermal diffusion coefficient of paraffin were improved. Through melting test of nano particle-paraffin and observation of settling process of nano particles

Cu nanoparticle and dispersing agent Hitenol BC-10 were selected to prepare a kind of stable nano-particle/paraffin composite phase change storage material

and its thermal physical properties were tested. The experimental results showed that addition of nano-copper particles could increase the thermal conductivity of paraffin apparently. Compared with the pure paraffin

thermal conductivity of solid nano-copper/paraffin increased by 7.9%

the liquid nano-copper/paraffin increased by 3.8%

while the solid and liquid thermal diffusion coefficient increased by 20.6% and 16% respectively.

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