Numerical simulation on heat storage of underground concrete pile

摘要

In order to study the feasibility on heat storage of underground concrete, this paper set up the mathematical model on thermal storage of underground concrete pile. And it adopted ANSYS finite element analysis software to numerically simulate the temperature field of underground concrete pile. The analysis showed that: during the period of heat storage, the distribution of temperature field which caused by heat exchange between thermal storage medium and concrete pile was uneven and astable. In addition, the temperature close to the heat exchanger was highest and gradually decreased along the radius direction. The underground create pile not only stored heat energy effectively, but also made full use of underground space.