Phase change heat storage capacity monitoring system and method based on neural network

The invention discloses a neural network-based phase change heat storage quantity monitoring system, which comprises a phase change heat storage device, and is characterized in that the phase change heat storage device comprises a sealed shell and a phase change material located in the shell, and a heat exchange pipeline for heat exchange is arranged in the phase change material; the phase change material is a solid-liquid phase change material; the system further comprises a detection system and a heat storage capacity prediction system. The detection system comprises a pressure sensor and a plurality of temperature sensors; the shell is filled with gas which does not chemically react with the phase change material, and the pressure sensor is used for measuring the pressure of the gas; the temperature sensor is used for measuring the temperature of the phase change material at different positions in the shell; the heat storage capacity prediction system is constructed based on a neural network, is trained by