期刊
RENEWABLE ENERGY
卷 160, 期 -, 页码 817-829出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2020.06.076
关键词
Thermal energy storage; Phase change material; Concrete panel; Building; Thermal comfort; Energy efficiency
资金
- National Natural Science Foundation of China (NSFC) [U1605242]
- Hunan Province Key Research Project [2017WK2090]
Several attempts have been made to achieve considerable energy savings in concrete buildings by using phase change materials (PCMs). However, PCM leakage can affect both the PCMs' efficiency and the overall properties of concrete which consequently limit their application in buildings. To overcome this issue, this study proposes to develop a novel core-shell structured phase change material aggregates (AGGs(PCM)) to capture and store solar energy in the building envelope for space heating and cooling applications. The thermophysical properties of AGGs(PCM) and the thermal performance of AGGs(PCM) in concrete panels under the actual climate conditions of southern China were tested. The obtained results demonstrate significant PCM leakage prevention and enhancement of the thermal performances of the concrete panel. The AGGs(PCM)-concrete panel was able to reduce the peak temperature by 1 degrees C, indicating improved thermal comfort and electricity saving potential. Better performances could be achieved by increasing the mPCMs content into AGGs(PCM) or by selecting a PCM with a more suitable phase transition temperature to allow a more efficient heat storage and release process. (C) 2020 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据