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Based on the establishment of the concrete pile test-bed, the selection of concrete materials and the selection of insulation materials outside the concrete pile are compared, and the better materials are obtained. The heat exchanger is embedded in the concrete pile in advance, and the heat is stored in the concrete pile by using the heat source. By measuring the temperature and other parameters in different depths of concrete pile, the thermal storage effect of thermal storage pile is analyzed and the optimal thermal storage model is established. In this paper, through the study of the relevant data about the underground heat storage model of soil heat pump, the physical model and mathematical model used for the simulation and analysis of the temperature field around the buried pipe heat exchanger of underground concrete heat storage pile are obtained. In this paper, the single U vertical buried pipe is selected as the physical model, and the cylindrical heat source model is selected as the mathematical model, so as to simplify the heat exchanger around the buried pipe of underground concrete. The model of heat transfer is established. The mathematical model is analyzed with MATLAB. In this paper, the changes of concrete temperature with depth, radius, flow rate, specific heat and thermal conductivity are analyzed. The influence trend of these factors on the concrete temperature field around the buried pipe of the heat storage pile is summarized. Classification number : TK521  Document identification code : A

Underground Thermal Engermal Energy Storage Storage Concrete Piples Around the Simulation and Analysis of Temperature Fileds