Numerical Analysis on the Structure of Wall Implanted with Heat Pipes

2018 4th International Conference on Environment and Renewable Energy

生态环境科学;能源学

Wang, Zhengyu^1 ; Su, Xianghui^1

Nanjing University of Aeronautics and Astronautics, Nanjing, China^1

关键词: Building walls;    External thermal insulations;    Finitedifference methods (FDM);    Indoor thermal environments;    Numerical calculation;    Outdoor environment;    Two-dimensional transient;    Typical climates;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/159/1/012031/pdf
DOI  :  10.1088/1755-1315/159/1/012031

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A type of passive solar energy utilization technology, the wall implanted with heat pipes, with a double vacuum glass panel be set to isolate the condenser section from the outdoor environment, is studied theoretically in this paper, to improve the utilization of solar energy on building walls with external thermal insulation in winter in northern China. A two-dimensional transient heat-transfer model is developed to analyse this instruction and then it is solved by using finite difference method (FDM). Numerical calculation on this construction indicates that, the temperature of the inner surface increases by 12.4 degrees with the glass panel in typical climate of Beijing, more than the figure that is 5.8 degrees at most without the structure. It can improve the indoor thermal environment effectively.