TY - JOUR
TI - Numerical analysis of thermal storage and release performance of mechanical thermal storage based on 2-D thermal conductivity differential equation
AU - Li Hao
JN - Thermal Science
PY - 2024
VL - 28
IS - 2
SP - 1295
EP - 1302
PT - Article
AB - In order to understand the numerical analysis of the thermal storage and  release performance of mechanical heat storage materials, the author  proposes a study on the numerical analysis of the thermal storage and  release performance of mechanical heat storage materials based on 2-D  thermal conductivity differential equations. The author first studied the  phenomenon of iron resistance in the sleeve on the overall heat storage  performance of the magnesium brick, and made two conclusions about the  number of magnets in the sleeve brick. Second, ANSYS is used to model the  exothermic process of mechanical heat storage, analyze the temperature  distribution, flow field distribution, heat transfer coefficient of heat  storage under different conditions, and compare the experimental results.  Finally, the experiment shows that the addition of the sleeve does not  affect the overall heat storage performance of the magnetic brick, which can  extend the service life of the resistance metal and provides some support  for the expansion of the use of the heat storage material of the magnetic  brick. By using the numerical calculation method to calculate the error, it  can be seen that the error between the numerical simulation and experimental  results is less than 16, and the experimental results are consistent with  the experimental results. The ability to store and release heat of a heat  storage facility depends largely on its size structure, and the heat storage  and release ability of a small heat storage facility is better than that of  a large heat storage facility. For heat storage materials with high thermal  conductivity, their heat transfer coefficient will increase with increasing  temperature, but the increase is not significant. For thermal accumulators  with low thermal conductivity, their heat transfer coefficient will decrease  with increasing temperature.