Paraffin/Palygorskite composite phase change materials for thermal energy storage

被引：57
|
作者：
Yang, Dan [1 ,2 ]
Shi, Silan [1 ,3 ]
Xiong, Lian [1 ,2 ]
Guo, Haijun [1 ,2 ]
Zhang, Hairong [1 ,2 ]
Chen, Xuefang [1 ,2 ]
Wang, Can [1 ,2 ]
Chen, Xinde [1 ,2 ]
机构：
[1] Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
[2] Chinese Acad Sci, Xuyi Ctr Attapulgite Appl Technol Res Dev & Ind, Xuyi 211700, Peoples R China
[3] Chinese Acad Sci, Grad Univ, Beijing 10049, Peoples R China
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2016年 / 144卷
关键词：
Phase changing material; Palygorskite; Composite; Direct impregnation; Thermal stability; PCM; GRAPHITE; NANOPARTICLES; CONDUCTIVITY; FLAMMABILITY; STABILITY; SYSTEMS; HYBRID; CORE;
D O I：
10.1016/j.solmat.2015.09.002
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this study, paraffin was selected as the phase change materials (PCMs) and rude-Palygorskite (Pal), rinsed-Pal, H+-Pal and organic-Pal were selected as porous materials. A series of paraffin/Pals composite PCMs were prepared by direct impregnation method without vacuuming. In the composite PCMs, up to 150 wt% of paraffin could be loaded in H+-Pal. The Differential Scanning Calorimetry (DSC) tests revealed that paraffin/ H+-Pal composite PCM had a melting temperature of 54-56 degrees C and latent heat of 132.18 J g(-1). In addition, the composite PCMs were characterized by Scanning Electron Microscope (SEM), Brunauer, Emmett, and Teller (BET) and Fourier Transform Infrared Spectroscopy (FTIR). Good thermal stability was observed for composite PCMs by cycling test; we found that paraffin/H+-Pal composite PCM maintained similar to 95% of the initial latent heat after the cycling test. In conclusion, the impregnation of Pals with paraffin was a promising method for preparation of excellent PCM composites. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：228 / 234
页数：7
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