Heat transfer study of building envelopes with phase change materials

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Dai, Xiaoli^1 ; Wu, Xiaoyan^2 ; Tian, Fei^1

School of Energy and Power Engineering, Jiangsu University, Jiangsu, China^1

College of Civil Engineering and Architecture, Jiaxing University, Zhejiang, China^2

关键词: Apparent heat capacity methods;    Building envelopes;    Computer modeling;    Concrete thickness;    Effective thermal conductivity;    Phase change latent heat;    Phase change temperature;    Transfer performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/2/022011/pdf
DOI  :  10.1088/1757-899X/490/2/022011

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The porous foams filled with phase change materials (PCMs) are suitable for insulation and energy storage in building envelopes. This paper presented the physical analysis and computer modeling for heat transfer performance of building envelopes with PCMs. So the building concrete was assumed as phase change concrete. The paper simulated the heat transfer in porous foam building walls by apparent heat capacity method. The phase change concrete was in the center of building envelops. Some typical parameters were studied in the paper. The results showed that effective thermal conductivity of foamed concrete, phase change latent heat of phase change materials, the PCM phase change temperature radius and phase change concrete thickness have significant effects on the heat transfer performance of building envelopes.