Heat storage properties of the cement mortar incorporated with composite phase change material

被引：129
作者：
Li, Min [1 ,2 ]
Wu, Zhishen [2 ]
Tan, Jinmiao [1 ,2 ]
机构：
[1] Southeast Univ, Jiangsu Key Lab Construct Mat, Nanjing 211189, Jiangsu, Peoples R China
[2] Southeast Univ, Int Inst Urban Syst Engn, Nanjing 210096, Jiangsu, Peoples R China
来源：
APPLIED ENERGY | 2013年 / 103卷
基金：
中国国家自然科学基金;
关键词：
Phase change material; Graphite; Heat storage; Cement mortar; THERMAL-ENERGY STORAGE; MICROENCAPSULATED PCM; PARAFFIN WAX; SOLIDIFICATION;
D O I：
10.1016/j.apenergy.2012.09.057
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：
An experimental study is presented on the cement mortar incorporated with expanded graphite (EG)/paraffin composite phase change material (PCM). The composite PCM was prepared by absorbing paraffin into EG with vacuum absorption method. The heat storage cement mortar (HSCM) with proper mass fraction of the composite PCM was prepared. A testing device was designed for evaluating the heat storage effect of HSCM. Temperature variation and heat storage coefficient of HSCM were compared to those of the ordinary cement mortar (OCM). For a cubic with one HSCM board and a cubic with one OCM board, the maximum indoor center temperature difference is 2.2 K during the heat storage and 1.5 K during the heat release process. The heat storage coefficient of HSCM board is 1.74 times of that of OCM board. The results indicate that the HSCM board has good heat storage property. (c) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：393 / 399
页数：7
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