Experimental study and evaluation of latent heat storage in phase change materials wallboards

被引:154
作者
Lv Shilei [1 ]
Feng Guohui
Zhu Neng
Li, Dongyan
机构
[1] Tianjin Univ, Sch Environm Sci & Technol, Tianjin 300072, Peoples R China
[2] Shenyang Jianzhu Univ, Shenyang 110168, Peoples R China
[3] Nankai Univ, Sch Econ, Tianjin 300071, Peoples R China
关键词
PCM; PCM wallboards; latent heat; DSC; heat storage;
D O I
10.1016/j.enbuild.2006.11.012
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Phase change materials (PCM) can be applied in building envelops to conserve heat energy. Wallboards incorporated with PCM can automatically absorb indoor redundant heat, which can greatly reduce the load of HVAC systems and save electric energy. In experiments, a PCM wallboard room was constructed by attaching PCM wallboards, developed by incorporating about 26% PCM by weight into gypsum wallboards, to the surface of an ordinary wall. The transition temperature and latent heat of these PCM wallboards were tested by differential scanning calorimetry (DSC). The room testing was conducted to determine the latent heat storage of PCM wallboards. Through experiments, it could be proved that DSC can effectively predict the performance of a full-scale installation of PCM wallboards. Compared with an ordinary room, it was found that the PCM wallboard room could greatly reduce the energy cost of HVAC systems and transfer electric power peak load to valley. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:1088 / 1091
页数:4
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