Preparation and characterization of expanded perlite/paraffin composite as form-stable phase change material

被引：142

作者：

Lu, Zeyu ^{[1
]}

Xu, Biwan ^{[1
]}

Zhang, Jinrui ^{[1
]}

Zhu, Yu ^{[1
]}

Sun, Guoxing ^{[1
]}

Li, Zongjin ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China

来源：

SOLAR ENERGY | 2014年 / 108卷

关键词：

Expanded perlite; Paraffin; Phase change materials; Thermal properties; PARAFFIN/EXPANDED PERLITE COMPOSITE; ACID/EXPANDED GRAPHITE COMPOSITE; THERMAL-ENERGY STORAGE; CAPRIC ACID; PCM; WALLBOARD;

D O I：

10.1016/j.solener.2014.08.008

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, a form-stable expanded perlite/paraffin (EP/PA) composite was prepared by absorbing paraffin into porous networks of expanded perlite. The form-stable composite was characterized by using Differential scanning calorimetry (DSC), Thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscope (SEM) techniques and leakage test. The melting temperature and latent heat of the form-stable EP/PA composite containing 60 wt.% paraffin were determined as 27.56 degrees C and 80.9 J/g, which showed good thermal energy storage property, thermal stability and thermal reliability. In addition, the FT-IR results revealed that there was no chemical interaction between the expanded perlite and the paraffin. By means of the direct impregnation method, the paraffin was distributed uniformly in the EP/PA composite without liquid leakage. All the results suggested that the form-stable EP/PA composite has great potential in building applications for thermal energy storage. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：460 / 466

页数：7

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