Heat transfer and thermal storage behaviour of gypsum boards incorporating micro-encapsulated PCM

被引：77
|
作者：
Lai, Chi-ming [1 ]
Chen, R. H. [1 ]
Lin, Ching-Yao [1 ]
机构：
[1] Natl Cheng Kung Univ, Dept Civil Engn, Tainan 701, Taiwan
来源：
ENERGY AND BUILDINGS | 2010年 / 42卷 / 08期
关键词：
Phase change material; Energy; Solar heat gain;
D O I：
10.1016/j.enbuild.2010.02.018
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In the application of energy storage and thermal environmental control, PCM (Phase Change Material) is a very promising material choice. This study incorporated mPCM (micro-encapsulated PCM) into gypsum to make mPCM gypsum board and then investigated the physical properties, heat transfer and thermal storage behaviour. The major control parameters are wall temperatures and the weight percentages of mPCM added to the gypsum boards. A melting fraction correlation, reduced from our test data and based on Stefan number (Ste), subcooling (Sb) and Fourier number, is proposed. It shows that case with a higher Ste or Sb can have a higher heat transfer through the hot wall. Thermal storage behaviour of mPCM gypsum boards is then analyzed. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1259 / 1266
页数：8
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