Abstract: [Objective] A new solar energy-storage flooring heating system was presented and some reference and theoretical basis for the design and research of the new type domestic heating floor system were provided in this study.[Method] Firstly, the overall structure and composition of the solar energy-storage flooring were introduced. Based on three-dimensional software, the three-dimensional entity of the solar energy-storage flooring system was drawn. Then, based on the overall structure of the solar energy-storage flooring, the working principle and heat transfer process of the solar energy-storage flooring were analyzed. And the working process of the indoor flooring heating system was analyzed. Finally, based on the heat transfer principle and working process of the green energy-storage flooring, the heat transfer mathematical model was established for the aluminum core-floor-insulation layer system in the green energy-storage flooring system according to the heat balance relationship. The discrete mathematical relationship model was established by each control unit, and the mathematical model was simulated by using MATLAB software programming, to obtain temperature distribution at cloud diagram of aluminum core and floor, while the aluminum core-floor-insulation layer system was simulated in combination with ANSYS software to obtain the temperature distribution cloud diagram of the system.[Result] The aluminum core temperature cloud map and the floor temperature cloud map were obtained by MATLAB software, according to the aluminum core temperature distribution cloud diagram, it can be seen that the temperature transferring rate of the aluminum core in the width direction is different, and the temperature in the length direction shows the trend of high temperature at mid and low temperature at both ends. It can be seen from the figure that large proportion of the overall temperature is higher than 30℃, and temperature distribution about 40℃ is also large, which shows that the aluminum core has a good heat transfer effect. The curve of the extracted data was fitted by Origin 9.0 software and the temperature distribution quadratic curve of the aluminum core plate at 2 m was obtained. The correlation coefficient(R²) was 0.989 5, which showed that the curve fitting effect was fine. From the temperature distribution cloud map of the flooring, it is indicated see that the heat transfer rate of the flooring is slow, which is related to its own thermal conductivity. After the simulation and solution of ANSYS, the temperature distribution of the solar heating flooring system was obtained. The temperature distribution on the surface of the floor basically shows the trend of higher temperature distribution at both ends and lower temperature in the middle, and finally the temperature is stable at about 24℃. Furthermore, the experimental analysis shows that with the increase of time, the temperature of the floor surface is continuously increasing. When the temperature elevate for 50 min, the lowest temperature of the floor surface is 20.5℃, and the fitting degree is 85.42%. This shows that the model accuracy is good.[Conclusion] The energy-storage flooring has a high degree of fitting between the theoretical model and the actual situation through model establishment, temperature distribution simulation and experimental verification. Thus, this study provides certain ideas for the design and research of solar energy-storage flooring and is conducive to the development and utilization of solar energy-storage flooring in the new era.

Key words: energy-storage flooring, solar energy, structural design, heat transfer model, simulation analysis