Enhanced thermal conductivity of composite phase change materials based on carbon modified expanded perlite

被引：42

作者：

Li, Runjie ^{[1
]}

Zhao, Yajing ^{[2
]}

Xia, Boyang ^{[1
]}

Dong, Zhensheng ^{[3
]}

Xue, Song ^{[1
]}

Huo, Xiaotong ^{[4
]}

Wu, Xiaowen ^{[2
]}

Liu, Yan'gai ^{[2
]}

Huang, Zhaohui ^{[2
]}

Fang, Minghao ^{[2
]}

Min, Xin ^{[2
]}

Zhang, Xiaoguang ^{[5
]}

机构：

[1] China Univ Geosci Beijing, Sch Sci, Beijing 100083, Peoples R China

[2] China Univ Geosci Beijing, Sch Mat Sci & Technol, Beijing Key Lab Mat Utilizat Nonmet Minerals & So, Natl Lab Mineral Mat, Beijing 100083, Peoples R China

[3] China Univ Geosci Beijing, Sch Engn & Technol, Beijing 100083, Peoples R China

[4] PetroChina Beijing Gas Pipeline Co Ltd, Beijing 100101, Peoples R China

[5] Peking Univ, Beijing Key Lab Magnetoelect Mat & Devices, Beijing Innovat Ctr Engn Sci & Adv Technol, Dept Mat Sci & Engn,Coll Engn, Beijing 100871, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2021年 / 261卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Carbon modified expanded perlite; Polyethylene glycol; Composite phase change materials; Thermal conductivity; Chemical stability;

D O I：

10.1016/j.matchemphys.2021.124226

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phase change materials (PCMs) have attracted growing attention in clean energy storage fields. To improve the thermal conductivity of porous mineral-based composite PCMs (c-PCMs), pretreatment via in-situ carbonization is proposed to fill the pore structure with thermally conductive carbon. After vacuum impregnation, high-performance c-PCMs are obtained, comprising carbon-modified expanded perlite (EPC) and polyethylene glycol (PEG). The modified micro-pores optimize the heat transfer characteristic behaviors in c-PCMs and improve the adsorption stability of PEG. Thus, the load capacity of PEG reaches approximately 73.90 wt% in EPC/PEG cPCMs, providing excellent chemical and structural stability among perlite matrix, carbon modifier and PEG PCMs. The thermal conductivity of the EPC/PEG c-PCMs is 0.521 W/(m.K), which is almost 1.3 times that of the pristine PEG. These performances indicate that the EPC/PEG c-PCMs could be used as an environmentally friendly material for external wall heat-insulation application.

引用

页数：8

共 54 条

[31] A review on supercooling of Phase Change Materials in thermal energy storage systems [J].

Safari, A. ;

Saidur, R. ;

Sulaiman, F. A. ;

Xu, Yan ;

Dong, Joe .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2017, 70 :905-919

[32] Preparation, characterization and thermal properties of lauric acid/expanded perlite as novel form-stable composite phase change material [J].

Sari, Ahmet ;

Karaipekli, Ali ;

Alkan, Cemil .

CHEMICAL ENGINEERING JOURNAL, 2009, 155 (03) :899-904

[33] Review of the application of phase change material for heating and domestic hot water systems [J].

Sharif, M. K. Anuar ;

Al-Abidi, A. A. ;

Mat, S. ;

Sopian, K. ;

Ruslan, M. H. ;

Sulaiman, M. Y. ;

Rosli, M. A. M. .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2015, 42 :557-568

[34] Char structure characterised by Raman spectroscopy and its correlations with combustion reactivity [J].

Sheng, Changdong .

FUEL, 2007, 86 (15) :2316-2324

[35] Preparation and thermal properties of paraffin/expanded perlite composite as form-stable phase change material [J].

Sun, Dan ;

Wang, Lijiu ;

Li, Changming .

MATERIALS LETTERS, 2013, 108 :247-249

[36] Preparation and thermal properties of shape-stabilized composite phase change materials based on polyethylene glycol and porous carbon prepared from potato [J].

Tan, Bo ;

Huang, Zhaohui ;

Yin, Zhaoyu ;

Min, Xin ;

Liu, Yan'gai ;

Wu, Xiaowen ;

Fang, Minghao .

RSC ADVANCES, 2016, 6 (19) :15821-15830

[37] Thermal behavior of polyethylene glycol based phase change materials for thermal energy storage with multiwall carbon nanotubes additives [J].

Wang, Chaoming ;

Chen, Ke ;

Huang, Jun ;

Cai, Zhengyu ;

Hu, Zhanjiang ;

Wang, Tingjun .

ENERGY, 2019, 180 :873-880

[38] Shape-stabilized phase change materials based on polyethylene glycol/porous carbon composite: The influence of the pore structure of the carbon materials [J].

Wang, Chongyun ;

Feng, Lili ;

Li, Wei ;

Zheng, Jie ;

Tian, Wenhuai ;

Li, Xingguo .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2012, 105 :21-26

[39] Fe3O4-functionalized graphene nanosheet embedded phase change material composites: efficient magnetic- and sunlight-driven energy conversion and storage [J].

Wang, Wentao ;

Tang, Bingtao ;

Ju, Benzhi ;

Gao, Zhanming ;

Xiu, Jinghai ;

Zhang, Shufen .

JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (03) :958-968

[40] Single-Walled Carbon Nanotube/Phase Change Material Composites: Sunlight-Driven, Reversible, Form-Stable Phase Transitions for Solar Thermal Energy Storage [J].

Wang, Yunming ;

Tang, Bingtao ;

Zhang, Shufen .

ADVANCED FUNCTIONAL MATERIALS, 2013, 23 (35) :4354-4360

← 1 2 3 4 5 6 →